{"title":"HPLC guard columns","description":"\u003cstyle\u003e\n.lx-sub div[title]:hover img, .lx-sub img[src*=\"\/cdn\/shop\/files\/\"]:hover { filter: none !important; opacity: 1 !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"lx-sub\" style=\"text-align: left;\"\u003e\n\u003ch2 style=\"font-size: 1.5rem; font-weight: 600; letter-spacing: -0.02em; line-height: 1.25; color: #0e1a22; margin: 0 0 0.65em;\"\u003eBuy HPLC guard columns online\u003c\/h2\u003e\n\u003cp style=\"font-size: 1.0625rem; line-height: 1.6; color: #0e1a22; margin: 0 0 1.1em;\"\u003eThe HPLC guard columns shelf sits in HPLC columns \u0026amp; accessories. Luminix Health supplies this range from a catalogue of 150.000 laboratory articles for hospitals, universities, pharma and industrial laboratories.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 2.6em;\"\u003e\u003ca href=\"\/fr-fr\/pages\/get-a-quote\" style=\"display: inline-block; background: linear-gradient(135deg, #0a3d7a, #0e6b8f 48%, #14a0b0); color: #ffffff; font-size: 14px; font-weight: 600; letter-spacing: 0.01em; line-height: 50px; padding: 0 26px; border-radius: 999px; text-decoration: none; box-shadow: 0 8px 20px rgba(10, 61, 122, 0.22);\"\u003eGet your quote\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2 style=\"font-size: 1.5rem; font-weight: 600; letter-spacing: -0.02em; line-height: 1.25; color: #0e1a22; margin: 0 0 0.65em;\"\u003eBrowse our HPLC guard columns\u003c\/h2\u003e\n\u003cp style=\"margin: 0.95em 0 0.35em; font-size: 15px; font-weight: 600; color: #0e1a22;\"\u003eHPLC guard columns\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 0.2em; line-height: 1;\"\u003e\u003ca href=\"\/fr-fr\/collections\/hplc-columns\" style=\"display: inline-block; margin: 0 6px 8px 0; padding: 8px 14px; border-radius: 999px; background: #e8f6f8; color: #0c5f70; font-size: 14px; font-weight: 600; line-height: 1.3; text-decoration: none;\"\u003eHPLC columns\u003c\/a\u003e\u003ca href=\"\/fr-fr\/collections\/hplc-fittings-tubing-and-inline-filters\" style=\"display: inline-block; margin: 0 6px 8px 0; padding: 8px 14px; border-radius: 999px; background: #e8f6f8; color: #0c5f70; font-size: 14px; font-weight: 600; line-height: 1.3; text-decoration: none;\"\u003eHPLC fittings, tubing \u0026amp; inline filters\u003c\/a\u003e\u003ca href=\"\/fr-fr\/collections\/hplc-accessories\" style=\"display: inline-block; margin: 0 6px 8px 0; padding: 8px 14px; border-radius: 999px; background: #e8f6f8; color: #0c5f70; font-size: 14px; font-weight: 600; line-height: 1.3; text-decoration: none;\"\u003eHPLC accessories\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0.95em 0 0.35em; font-size: 15px; font-weight: 600; color: #0e1a22;\"\u003eHPLC columns \u0026amp; accessories\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 0.2em; line-height: 1;\"\u003e\u003ca href=\"\/fr-fr\/collections\/hplc-columns-and-accessories\" style=\"display: inline-block; margin: 0 6px 8px 0; padding: 8px 14px; border-radius: 999px; background: #e8f6f8; color: #0c5f70; font-size: 14px; font-weight: 600; line-height: 1.3; text-decoration: none;\"\u003eHPLC columns \u0026amp; accessories\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0.95em 0 0.35em; font-size: 15px; font-weight: 600; color: #0e1a22;\"\u003eMain catalogues\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 1.4em; line-height: 1;\"\u003e\u003ca href=\"\/fr-fr\/collections\/labware\" style=\"display: inline-block; margin: 0 6px 8px 0; padding: 8px 14px; border-radius: 999px; background: #e8f6f8; color: #0c5f70; font-size: 14px; font-weight: 600; line-height: 1.3; text-decoration: none;\"\u003eLabware\u003c\/a\u003e\u003ca href=\"\/fr-fr\/collections\/instruments\" style=\"display: inline-block; margin: 0 6px 8px 0; padding: 8px 14px; border-radius: 999px; background: #e8f6f8; color: #0c5f70; font-size: 14px; font-weight: 600; line-height: 1.3; text-decoration: none;\"\u003eInstruments\u003c\/a\u003e\u003ca href=\"\/fr-fr\/collections\/chemicals\" style=\"display: inline-block; margin: 0 6px 8px 0; padding: 8px 14px; border-radius: 999px; background: #e8f6f8; color: #0c5f70; font-size: 14px; font-weight: 600; line-height: 1.3; text-decoration: none;\"\u003eChemicals\u003c\/a\u003e\u003ca href=\"\/fr-fr\/collections\/consumables\" style=\"display: inline-block; margin: 0 6px 8px 0; padding: 8px 14px; border-radius: 999px; background: #e8f6f8; color: #0c5f70; font-size: 14px; font-weight: 600; line-height: 1.3; text-decoration: none;\"\u003eConsumables\u003c\/a\u003e\u003ca href=\"\/fr-fr\/collections\/chromatography\" style=\"display: inline-block; margin: 0 6px 8px 0; padding: 8px 14px; border-radius: 999px; background: #e8f6f8; color: #0c5f70; font-size: 14px; font-weight: 600; line-height: 1.3; text-decoration: none;\"\u003eChromatography\u003c\/a\u003e\u003ca href=\"\/fr-fr\/collections\/microbiological-media\" style=\"display: inline-block; margin: 0 6px 8px 0; padding: 8px 14px; border-radius: 999px; background: #e8f6f8; color: #0c5f70; font-size: 14px; font-weight: 600; line-height: 1.3; text-decoration: none;\"\u003eLife Science \u0026amp; Microbiology\u003c\/a\u003e\u003ca href=\"\/fr-fr\/collections\/safety\" style=\"display: inline-block; margin: 0 6px 8px 0; padding: 8px 14px; border-radius: 999px; background: #e8f6f8; color: #0c5f70; font-size: 14px; font-weight: 600; line-height: 1.3; text-decoration: none;\"\u003eSafety\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.65; color: #3d4a4e; margin: 0 0 1.2em;\"\u003eNot sure which article fits the bench? Tell us the application and the pack size. Our specialists help you find it, including a personal quote for the order.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 1.5rem; font-weight: 600; letter-spacing: -0.02em; line-height: 1.25; color: #0e1a22; margin: 0 0 0.65em;\"\u003eOur brands of HPLC guard columns\u003c\/h2\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 10px; margin: 0 0 2.6em;\"\u003e\u003cdiv title=\"Macherey-Nagel\" style=\"flex: 1 1 calc(25% - 8px); min-width: 150px; max-width: calc(50% - 5px); box-sizing: border-box; display: flex; align-items: center; justify-content: center; height: 88px; padding: 14px 20px; background: #ffffff; border: 1px solid #e2e8e6; border-radius: 12px;\"\u003e\u003ca class=\"lx-brand-tile\" href=\"\/fr-fr\/collections\/vendors?q=Macherey-Nagel\" aria-label=\"Macherey-Nagel\"\u003e\u003cimg src=\"https:\/\/www.luminixhealth.com\/cdn\/shop\/files\/macherey-nagel-small_d4cd4891-4386-48b2-8d3e-409bee797ef9.png?v=1774973327\u0026amp;amp;width=400\" alt=\"Macherey-Nagel\" loading=\"lazy\" style=\"display: block; max-width: 100%; max-height: 54px; width: auto; height: auto; margin: 0; filter: grayscale(100%); opacity: 0.7; transition: filter 0.2s ease, opacity 0.2s ease;\"\u003e\u003c\/a\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv style=\"background: linear-gradient(135deg, #0a3d7a, #0e6b8f 48%, #14a0b0); border-radius: 20px; padding: 30px 28px 32px; margin: 0; box-shadow: 0 8px 20px rgba(10, 61, 122, 0.22);\"\u003e\n\u003ch2 style=\"font-size: 1.35rem; font-weight: 600; letter-spacing: -0.02em; line-height: 1.3; color: #ffffff; margin: 0 0 0.6em;\"\u003eLuminix Health, your European distributor for HPLC guard columns\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 0.8em; font-size: 16px; line-height: 1.6; color: #ffffff;\"\u003eOrder HPLC guard columns from Luminix Health and count on:\u003c\/p\u003e\n\u003cul style=\"list-style: none; margin: 0 0 1.3em; padding: 0; font-size: 15px; line-height: 1.55; color: #ffffff;\"\u003e\n\u003cli style=\"display: flex; align-items: flex-start; margin: 0 0 0.45em; color: #ffffff;\"\u003e\n\u003cspan style=\"flex: 0 0 auto; display: inline-block; width: 20px; height: 20px; line-height: 20px; border-radius: 50%; background: #ffffff; color: #0e6b8f; font-size: 12px; font-weight: bold; text-align: center; margin: 2px 10px 0 0;\"\u003e✓\u003c\/span\u003e\u003cspan\u003ePersonal contact and professional advice\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"display: flex; align-items: flex-start; margin: 0 0 0.45em; color: #ffffff;\"\u003e\n\u003cspan style=\"flex: 0 0 auto; display: inline-block; width: 20px; height: 20px; line-height: 20px; border-radius: 50%; background: #ffffff; color: #0e6b8f; font-size: 12px; font-weight: bold; text-align: center; margin: 2px 10px 0 0;\"\u003e✓\u003c\/span\u003e\u003cspan\u003eFast answers and shipping from the heart of Europe, delivery within 2–5 business days if in stock\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"display: flex; align-items: flex-start; margin: 0 0 0.45em; color: #ffffff;\"\u003e\n\u003cspan style=\"flex: 0 0 auto; display: inline-block; width: 20px; height: 20px; line-height: 20px; border-radius: 50%; background: #ffffff; color: #0e6b8f; font-size: 12px; font-weight: bold; text-align: center; margin: 2px 10px 0 0;\"\u003e✓\u003c\/span\u003e\u003cspan\u003eCompetitive prices and a 24\/7 online range\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"display: flex; align-items: flex-start; margin: 0; color: #ffffff;\"\u003e\n\u003cspan style=\"flex: 0 0 auto; display: inline-block; width: 20px; height: 20px; line-height: 20px; border-radius: 50%; background: #ffffff; color: #0e6b8f; font-size: 12px; font-weight: bold; text-align: center; margin: 2px 10px 0 0;\"\u003e✓\u003c\/span\u003e\u003cspan\u003eA complete assortment of laboratory equipment and supplies\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin: 0 0 1.1em; font-size: 16px; line-height: 1.6; color: #ffffff;\"\u003e\u003cstrong\u003eGet in touch for a quote tailored to your laboratory's needs.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003ca href=\"\/fr-fr\/pages\/get-a-quote\" style=\"display: inline-block; background: #ffffff; color: #0a3d7a; font-size: 14px; font-weight: 600; letter-spacing: 0.01em; line-height: 50px; padding: 0 26px; border-radius: 999px; text-decoration: none;\"\u003eRequest your quote\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","products":[{"product_id":"hplc-guard-columns-nucleodur-1hkn-1hkn","title":"Colonnes de garde HPLC NUCLEODUR®, 300-5 C4 ec, 4x3 mm, 3 unité(s)","description":"\u003cp\u003eColonnes de garde HPLC NUCLEODUR®, 300-5 C\u003csub\u003e4\u003c\/sub\u003e ec, 4x\u003csub\u003e3\u003c\/sub\u003e mm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003ePour protéger votre colonne HPLC principale de la contamination, il est recommandé d'utiliser des colonnes de garde. Ces courtes colonnes sont placées dans un support de colonne de garde. Le support de colonne de garde, combiné à une colonne de garde à l'intérieur, est installé entre l'injecteur et la colonne HPLC. Cette installation empêche les impuretés chimiques d'atteindre la colonne principale. En effet, une contamination pourrait former une liaison irréversible avec le matériau de remplissage de la colonne (phase stationnaire), ce qui peut réduire la durée de vie de la colonne. Si vous souhaitez prolonger la durée de vie de votre colonne principale, ces courtes colonnes peuvent vous aider.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eD'autres produits attrayants pour compléter votre laboratoire de chromatographie se trouvent sur notre page \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatographie\u003c\/b\u003e\u003c\/a\u003e !\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Note --\u003e\n\u003c!-- Base product name --\u003e\n\u003c!-- DetailElements --\u003e\n\u003c!-- DeliveryText --\u003e\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eInformations techniques\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eLongueur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eDiamètre intérieur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø interne (colonne)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\toui \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eÉluant dans la colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcétonitrile - Eau \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eChimie de surface\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tModification butylique monomérique à densité moyenne (C\u003csub\u003e4\u003c\/sub\u003e) à large pore \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePrincipe de séparation\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tPhase inverse (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eType de particule\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tParticules entièrement poreuses (FPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des particules\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t5 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface spécifique selon BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t100 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eVolume des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t0.9 ml\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t300 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité thermique\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t60 ° C \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité à la pression\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t450 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité au pH\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1.0 - 9.0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTeneur en carbone\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t2.5 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56124456403276,"sku":"1HKN.1","price":174.15,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56124456436044,"sku":"1HKN.1","price":165.44,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56124456468812,"sku":"1HKN.1","price":156.74,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_7924977f-f4e8-4d0c-ad89-216ce67f2128.jpg?v=1766402745"},{"product_id":"hplc-guard-columns-nucleodur-1hl0-1hl0","title":"Colonnes de garde HPLC NUCLEODUR®, 100-3 C8 ec, 4x3 mm, 3 unité(s)","description":"\u003cp\u003eColonnes de garde HPLC NUCLEODUR®, 100-3 C\u003csub\u003e8\u003c\/sub\u003e ec, 4x\u003csub\u003e3\u003c\/sub\u003e mm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003ePour protéger votre colonne HPLC principale de la contamination, il est recommandé d'utiliser des colonnes de garde. Ces courtes colonnes sont placées dans un support de colonne de garde. Le support de colonne de garde, associé à une colonne de garde à l'intérieur, est installé entre l'injecteur et la colonne HPLC. Cette installation empêche les impuretés chimiques d'atteindre la colonne principale. En effet, une contamination pourrait former une liaison irréversible avec le matériau de remplissage de la colonne (phase stationnaire), ce qui peut réduire la durée de vie de la colonne. Si vous souhaitez prolonger la durée de vie de votre colonne principale, ces courtes colonnes peuvent vous aider.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eD'autres produits attrayants pour compléter votre laboratoire de chromatographie se trouvent sur notre page \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatographie\u003c\/b\u003e\u003c\/a\u003e !\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Note --\u003e\n\u003c!-- Base product name --\u003e\n\u003c!-- DetailElements --\u003e\n\u003c!-- DeliveryText --\u003e\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eInformations techniques\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eLongueur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eDiamètre intérieur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø interne (colonne)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tOui \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eÉluant dans la colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcétonitrile - Eau \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eChimie de surface\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tModification octylique monomérique à densité moyenne (C\u003csub\u003e8\u003c\/sub\u003e, MOS) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePrincipe de séparation\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tPhase inverse (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eType de particule\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tParticules entièrement poreuses (FPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface spécifique selon BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t340 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eVolume des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t0,9 ml\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t110 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité thermique\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t60 ° C \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité au pH\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1,0 - 9,0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTeneur en carbone\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t10,5 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56124457222476,"sku":"1HL0.1","price":174.15,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56124457255244,"sku":"1HL0.1","price":165.44,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56124457288012,"sku":"1HL0.1","price":156.74,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_9f8859ae-2f8c-4acb-a510-832965e4c91d.jpg?v=1766402748"},{"product_id":"hplc-guard-columns-nucleodur-1hl4-1hl4","title":"Colonnes de garde HPLC NUCLEODUR®, 100-5 C8 ec, 4x3 mm, 3 unité(s)","description":"\u003cp\u003eColonnes de garde HPLC NUCLEODUR®, 100-5 C\u003csub\u003e8\u003c\/sub\u003e ec, 4x\u003csub\u003e3\u003c\/sub\u003e mm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003ePour protéger votre colonne HPLC principale de la contamination, il est recommandé d'utiliser des colonnes de garde. Ces courtes colonnes sont placées dans un support de colonne de garde. Le support de colonne de garde, associé à une colonne de garde à l'intérieur, est installé entre l'injecteur et la colonne HPLC. Cette installation empêche les impuretés chimiques d'atteindre la colonne principale. En effet, une contamination pourrait former une liaison irréversible avec le matériau de remplissage de la colonne (phase stationnaire), ce qui peut réduire la durée de vie de la colonne. Si vous souhaitez prolonger la durée de vie de votre colonne principale, ces courtes colonnes peuvent vous aider.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eD'autres produits attrayants pour compléter votre laboratoire de chromatographie se trouvent sur notre page \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatographie\u003c\/b\u003e\u003c\/a\u003e !\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Note --\u003e\n\u003c!-- Base product name --\u003e\n\u003c!-- DetailElements --\u003e\n\u003c!-- DeliveryText --\u003e\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eInformations techniques\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eLongueur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eDiamètre intérieur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø interne (colonne)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\toui \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eÉluant dans la colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcétonitrile - Eau \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eChimie de surface\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tModification octyle monomérique à densité moyenne (C\u003csub\u003e8\u003c\/sub\u003e, MOS) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePrincipe de séparation\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tPhase inverse (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eType de particule\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tParticules entièrement poreuses (FPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des particules\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t5 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface spécifique selon BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t340 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eVolume des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t0.9 ml\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t110 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité thermique\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t60 ° C \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité à la pression\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t600 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité du pH\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1.0 - 11.0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTeneur en carbone\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t10.5 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56124457615692,"sku":"1HL4.1","price":174.15,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56124457648460,"sku":"1HL4.1","price":165.44,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56124457681228,"sku":"1HL4.1","price":156.74,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H.jpg?v=1766402751"},{"product_id":"hplc-guard-columns-nucleodur-1hl9-1hl9","title":"Colonnes de garde HPLC NUCLEODUR®, C8 Gravity, 3 µm, 4x3 mm, 3 unité(s)","description":"\u003cp\u003eColonnes de garde HPLC NUCLEODUR®, C\u003csub\u003e8\u003c\/sub\u003e Gravité, 3 µm, 4x\u003csub\u003e3\u003c\/sub\u003e mm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003ePour protéger votre colonne HPLC principale de la contamination, il est recommandé d'utiliser des colonnes de garde. Ces courtes colonnes sont placées dans un support de colonne de garde. Le support de colonne de garde, combiné à une colonne de garde à l'intérieur, est installé entre l'injecteur et la colonne HPLC. Cette installation empêche les impuretés chimiques d'atteindre la colonne principale. En effet, une contamination pourrait former une liaison irréversible avec le matériau de remplissage de la colonne (phase stationnaire), ce qui peut réduire la durée de vie de la colonne. Si vous souhaitez prolonger la durée de vie de votre colonne principale, ces courtes colonnes peuvent vous aider.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eD'autres produits attrayants pour compléter votre laboratoire de chromatographie se trouvent sur notre page \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatographie\u003c\/b\u003e\u003c\/a\u003e !\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Note --\u003e\n\u003c!-- Base product name --\u003e\n\u003c!-- DetailElements --\u003e\n\u003c!-- DeliveryText --\u003e\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eInformations techniques\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eLongueur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eDiamètre intérieur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø interne (colonne)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\toui \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eÉluant dans la colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcétonitrile - Eau \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eChimie de surface\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tDésactivé en base (BDS), modification octylique monomérique à haute densité (C\u003csub\u003e8\u003c\/sub\u003e, MOS) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePrincipe de séparation\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tPhase inverse (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eType de particule\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tParticules entièrement poreuses (FPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des particules\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface spécifique selon BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t340 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eVolume des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t0,9 ml\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t110 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité thermique\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t60 ° C \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité à la pression\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t400 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité du pH\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1,0 - 11,0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTeneur en carbone\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t11 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56124458205516,"sku":"1HL9.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56124458238284,"sku":"1HL9.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56124458271052,"sku":"1HL9.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_cf7694d4-69ec-49b7-bbd3-b0abddbfede6.jpg?v=1766402754"},{"product_id":"hplc-guard-columns-nucleodur-1hlk-1hlk","title":"Colonnes de garde HPLC NUCLEODUR®, C8 Gravity, 5 µm, 4x3 mm, 3 unité(s)","description":"\u003cp\u003eColonnes de garde HPLC NUCLEODUR®, C\u003csub\u003e8\u003c\/sub\u003e Gravité, 5 µm, 4x\u003csub\u003e3\u003c\/sub\u003e mm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003ePour protéger votre colonne HPLC principale de la contamination, il est recommandé d'utiliser des colonnes de garde. Ces courtes colonnes sont placées dans un support de colonne de garde. Le support de colonne de garde, associé à une colonne de garde à l'intérieur, est installé entre l'injecteur et la colonne HPLC. Cette installation empêche les impuretés chimiques d'atteindre la colonne principale. En effet, une contamination pourrait former une liaison irréversible avec le matériau de remplissage de la colonne (phase stationnaire), ce qui peut réduire la durée de vie de la colonne. Si vous souhaitez prolonger la durée de vie de votre colonne principale, ces courtes colonnes peuvent vous aider.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eD'autres produits attrayants pour compléter votre laboratoire de chromatographie se trouvent sur notre page \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatographie\u003c\/b\u003e\u003c\/a\u003e !\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Note --\u003e\n\u003c!-- Base product name --\u003e\n\u003c!-- DetailElements --\u003e\n\u003c!-- DeliveryText --\u003e\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eInformations techniques\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eLongueur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eDiamètre intérieur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø interne (colonne)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\toui \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eÉluant dans la colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcétonitrile - Eau \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eChimie de surface\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tDésactivé en base (BDS), modification octylique monomérique haute densité (C\u003csub\u003e8\u003c\/sub\u003e, MOS) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePrincipe de séparation\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tPhase inverse (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eType de particule\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tParticules entièrement poreuses (FPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des particules\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t5 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface spécifique selon BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t340 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eVolume des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t0.9 ml\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t110 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité thermique\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t60 ° C \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité à la pression\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t400 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité du pH\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1.0 - 11.0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTeneur en carbone\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t11 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56124458828108,"sku":"1HLK.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56124458860876,"sku":"1HLK.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56124458893644,"sku":"1HLK.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_b4297427-d5e0-4e05-9f78-2e674bb46f85.jpg?v=1766402757"},{"product_id":"hplc-guard-columns-nucleodur-1k1p-1k1p","title":"Colonnes de garde HPLC NUCLEODUR®, 100-3 C18 ec, 4x3 mm, 3 unité(s)","description":"\u003cp\u003eColonnes de garde HPLC NUCLEODUR®, 100-3 C\u003csub\u003e18\u003c\/sub\u003e ec, 4x\u003csub\u003e3\u003c\/sub\u003e mm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003ePour protéger votre colonne HPLC principale de la contamination, il est recommandé d'utiliser des colonnes de garde. Ces courtes colonnes sont placées dans un support de colonne de garde. Le support de colonne de garde, combiné à une colonne de garde à l'intérieur, est installé entre l'injecteur et la colonne HPLC. Cette installation empêche les impuretés chimiques d'atteindre la colonne principale. En effet, une contamination pourrait former une liaison irréversible avec le matériau de remplissage de la colonne (phase stationnaire), ce qui peut réduire la durée de vie de la colonne. Si vous souhaitez prolonger la durée de vie de votre colonne principale, ces courtes colonnes peuvent vous aider.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eD'autres produits attrayants pour compléter votre laboratoire de chromatographie se trouvent sur notre page \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatographie\u003c\/b\u003e\u003c\/a\u003e !\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Note --\u003e\n\u003c!-- Base product name --\u003e\n\u003c!-- DetailElements --\u003e\n\u003c!-- DeliveryText --\u003e\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eInformations techniques\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eLongueur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eDiamètre intérieur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø interne (colonne)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\toui \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eÉluant dans la colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcétonitrile - Eau \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eChimie de surface\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tModification octadécyle monomérique à densité moyenne (C\u003csub\u003e18\u003c\/sub\u003e, ODS) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePrincipe de séparation\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tPhase inverse (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eType de particule\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tParticules entièrement poreuses (FPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des particules\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface spécifique selon BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t340 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eVolume des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t0.9 ml\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t110 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité thermique\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t60 ° C \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité à la pression\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t600 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité au pH\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1,0-9,0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTeneur en carbone\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t17.5 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56125126312268,"sku":"1K1P.1","price":174.15,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56125126345036,"sku":"1K1P.1","price":165.44,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56125126377804,"sku":"1K1P.1","price":156.74,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_71e54373-ada3-403f-afda-171ae3b84883.jpg?v=1766403071"},{"product_id":"hplc-guard-columns-nucleodur-1k6x-1k6x","title":"Colonnes de garde HPLC NUCLEODUR®, C18 Gravity, 5 µm, 4x3 mm, 3 unité(s)","description":"\u003cp\u003eColonnes de garde HPLC NUCLEODUR®, C\u003csub\u003e18\u003c\/sub\u003e Gravity, 5 µm, 4x\u003csub\u003e3\u003c\/sub\u003e mm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003ePour protéger votre colonne HPLC principale de la contamination, il est recommandé d'utiliser des colonnes de garde. Ces courtes colonnes sont placées dans un support de colonne de garde. Le support de colonne de garde, associé à une colonne de garde à l'intérieur, est installé entre l'injecteur et la colonne HPLC. Cette installation empêche les impuretés chimiques d'atteindre la colonne principale. En effet, une contamination pourrait former une liaison irréversible avec le matériau de remplissage de la colonne (phase stationnaire), ce qui peut réduire la durée de vie de la colonne. Si vous souhaitez prolonger la durée de vie de votre colonne principale, ces courtes colonnes peuvent vous aider.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eD'autres produits attrayants pour compléter votre laboratoire de chromatographie se trouvent sur notre page \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatographie\u003c\/b\u003e\u003c\/a\u003e !\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Note --\u003e\n\u003c!-- Base product name --\u003e\n\u003c!-- DetailElements --\u003e\n\u003c!-- DeliveryText --\u003e\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eInformations techniques\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eLongueur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eDiamètre intérieur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø interne (colonne)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\toui \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eÉluant dans la colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcétonitrile - Eau \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eChimie de surface\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tDésactivé en base (BDS), modification octadécyle haute densité (C\u003csub\u003e18\u003c\/sub\u003e, ODS) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePrincipe de séparation\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tPhase inverse (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eType de particule\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tParticules entièrement poreuses (FPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des particules\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t5 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface spécifique selon BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t340 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eVolume des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t0,9 ml\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t110 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité à la pression\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t600 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité au pH\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1,0-11,0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTeneur en carbone\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t18 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eBase de données d'applications (Macherey-Nagel)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\u003ca href=\"https:\/\/chromaappdb.mn-net.com\/hplc?q=761903.30\" target=\"_blank\"\u003eHPLC\u003c\/a\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56125142958412,"sku":"1K6X.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56125142991180,"sku":"1K6X.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56125143023948,"sku":"1K6X.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_b91c2d2a-3bd3-4cc7-98fb-41889ca4915d.jpg?v=1766403120"},{"product_id":"hplc-guard-columns-nucleodur-1k6y-1k6y","title":"Colonnes de garde HPLC NUCLEODUR®, C18 Gravity, 3 µm, 4x3 mm, 3 unité(s)","description":"\u003cp\u003eColonnes de garde HPLC NUCLEODUR®, C\u003csub\u003e18\u003c\/sub\u003e Gravity, 3 µm, 4x\u003csub\u003e3\u003c\/sub\u003e mm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003ePour protéger votre colonne HPLC principale de la contamination, il est recommandé d'utiliser des colonnes de garde. Ces courtes colonnes sont placées dans un support de colonne de garde. Le support de colonne de garde, associé à une colonne de garde à l'intérieur, est installé entre l'injecteur et la colonne HPLC. Cette installation empêche les impuretés chimiques d'atteindre la colonne principale. En effet, une contamination pourrait former une liaison irréversible avec le matériau de remplissage de la colonne (phase stationnaire), ce qui peut réduire la durée de vie de la colonne. Si vous souhaitez prolonger la durée de vie de votre colonne principale, ces courtes colonnes peuvent vous aider.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eD'autres produits attrayants pour compléter votre laboratoire de chromatographie se trouvent sur notre page \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatographie\u003c\/b\u003e\u003c\/a\u003e !\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Note --\u003e\n\u003c!-- Base product name --\u003e\n\u003c!-- DetailElements --\u003e\n\u003c!-- DeliveryText --\u003e\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eInformations techniques\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eLongueur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eDiamètre intérieur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø interne (colonne)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\toui \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eÉluant dans la colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcétonitrile - Eau \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eChimie de surface\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tDésactivé en base (BDS), modification octadécyle haute densité (C\u003csub\u003e18\u003c\/sub\u003e, ODS) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePrincipe de séparation\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tPhase inverse (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eType de particule\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tParticules entièrement poreuses (FPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des particules\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface spécifique selon BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t340 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eVolume des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t0.9 ml\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t110 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité à la pression\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t600 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité au pH\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1,0-11,0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTeneur en carbone\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t18 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56125143089484,"sku":"1K6Y.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56125143122252,"sku":"1K6Y.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56125143155020,"sku":"1K6Y.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_7bcdf07e-aa6d-4403-b29b-520a0309c5fa.jpg?v=1766403120"},{"product_id":"hplc-guard-columns-nucleodur-1l7h-1l7h","title":"Colonnes de garde HPLC NUCLEODUR®, C18 Pyramid, 5 µm, 4x3 mm, 3 unité(s)","description":"\u003cp\u003eColonnes de garde HPLC NUCLEODUR®, C\u003csub\u003e18\u003c\/sub\u003e Pyramid, 5 µm, 4x\u003csub\u003e3\u003c\/sub\u003e mm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003ePour protéger votre colonne HPLC principale de la contamination, il est recommandé d'utiliser des colonnes de garde. Ces courtes colonnes sont placées dans un support de colonne de garde. Le support de colonne de garde, associé à une colonne de garde à l'intérieur, est installé entre l'injecteur et la colonne HPLC. Cette installation empêche les impuretés chimiques d'atteindre la colonne principale. En effet, une contamination pourrait former une liaison irréversible avec le matériau de remplissage de la colonne (phase stationnaire), ce qui peut réduire la durée de vie de la colonne. Si vous souhaitez prolonger la durée de vie de votre colonne principale, ces courtes colonnes peuvent vous aider.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eD'autres produits attrayants pour compléter votre laboratoire de chromatographie se trouvent sur notre page \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatographie\u003c\/b\u003e\u003c\/a\u003e !\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Note --\u003e\n\u003c!-- Base product name --\u003e\n\u003c!-- DetailElements --\u003e\n\u003c!-- DeliveryText --\u003e\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eInformations techniques\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eLongueur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eDiamètre intérieur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø interne (colonne)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\toui \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eÉluant dans la colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcétonitrile - Eau \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eChimie de surface\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tModification Octadécyle (C\u003csub\u003e18\u003c\/sub\u003e, ODS), Endcapping polaire \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePrincipe de séparation\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tPhase inverse (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eType de particule\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tParticules entièrement poreuses (FPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des particules\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t5 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface spécifique selon BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t340 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eVolume des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t0,9 ml\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t110 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité à la pression\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t600 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité au pH\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1,0-9,0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTeneur en carbone\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t14 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eBase de données d'applications (Macherey-Nagel)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\u003ca href=\"https:\/\/chromaappdb.mn-net.com\/hplc?q=761917.30\" target=\"_blank\"\u003eHPLC\u003c\/a\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56125242704204,"sku":"1L7H.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56125242736972,"sku":"1L7H.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56125242769740,"sku":"1L7H.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_c901a654-adc7-4c74-8121-c4eafd44ae93.jpg?v=1766403374"},{"product_id":"hplc-guard-columns-nucleodur-1ne5-1ne5","title":"Colonnes de garde HPLC NUCLEODUR®, 100-3 NH2-RP, 4x3 mm, 3 unité(s)","description":"\u003cp\u003eColonnes de garde HPLC NUCLEODUR®, 100-3 NH\u003csub\u003e2\u003c\/sub\u003e-RP, 4x\u003csub\u003e3\u003c\/sub\u003e mm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003ePour protéger votre colonne HPLC principale de la contamination, il est recommandé d'utiliser des colonnes de garde. Ces courtes colonnes sont placées dans un support de colonne de garde. Le support de colonne de garde, associé à une colonne de garde à l'intérieur, est installé entre l'injecteur et la colonne HPLC. Cette installation empêche les impuretés chimiques d'atteindre la colonne principale. En effet, une contamination pourrait former une liaison irréversible avec le matériau de remplissage de la colonne (phase stationnaire), ce qui peut réduire la durée de vie de la colonne. Si vous souhaitez prolonger la durée de vie de votre colonne principale, ces courtes colonnes peuvent vous aider.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eD'autres produits attrayants pour compléter votre laboratoire de chromatographie se trouvent sur notre page \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatographie\u003c\/b\u003e\u003c\/a\u003e !\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Note --\u003e\n\u003c!-- Base product name --\u003e\n\u003c!-- DetailElements --\u003e\n\u003c!-- DeliveryText --\u003e\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eInformations techniques\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eLongueur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eDiamètre intérieur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø interne (colonne)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\toui \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eÉluant dans la colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcétonitrile - Eau \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eChimie de surface\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tModification Aminopropyle (NH\u003csub\u003e2\u003c\/sub\u003e) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePrincipe de séparation\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tMulti-mode (RP et NP), Phase inverse (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eType de particule\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tParticules entièrement poreuses (FPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des particules\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface spécifique selon BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t340 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eVolume des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t0.9 ml\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t110 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité thermique\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t60 ° C \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité à la pression\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t600 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité au pH\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t2.0 - 8.0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTeneur en carbone\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t2.5 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56125349560652,"sku":"1NE5.1","price":170.95,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56125349593420,"sku":"1NE5.1","price":162.4,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56125349626188,"sku":"1NE5.1","price":153.86,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_4b8c53cc-58b2-49ff-aaa0-3e5f964dd889.jpg?v=1766403595"},{"product_id":"hplc-guard-columns-nucleodur-1nec-1nec","title":"Colonnes de garde HPLC NUCLEODUR®, 100-5 NH2-RP, 4x3 mm, 3 unité(s)","description":"\u003cp\u003eColonnes de garde HPLC NUCLEODUR®, 100-5 NH\u003csub\u003e2\u003c\/sub\u003e-RP, 4x\u003csub\u003e3\u003c\/sub\u003e mm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003ePour protéger votre colonne HPLC principale de la contamination, il est recommandé d'utiliser des colonnes de garde. Ces courtes colonnes sont placées dans un support de colonne de garde. Le support de colonne de garde, associé à une colonne de garde à l'intérieur, est installé entre l'injecteur et la colonne HPLC. Cette installation empêche les impuretés chimiques d'atteindre la colonne principale. En effet, une contamination pourrait former une liaison irréversible avec le matériau de remplissage de la colonne (phase stationnaire), ce qui peut réduire la durée de vie de la colonne. Si vous souhaitez prolonger la durée de vie de votre colonne principale, ces courtes colonnes peuvent vous aider.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eD'autres produits attrayants pour compléter votre laboratoire de chromatographie se trouvent sur notre page \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatographie\u003c\/b\u003e\u003c\/a\u003e !\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Note --\u003e\n\u003c!-- Base product name --\u003e\n\u003c!-- DetailElements --\u003e\n\u003c!-- DeliveryText --\u003e\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eInformations techniques\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eLongueur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eDiamètre intérieur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø interne (colonne)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcappé\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\toui \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eÉluant dans la colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcétonitrile - Eau \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eChimie de surface\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tModification Aminopropyle (NH\u003csub\u003e2\u003c\/sub\u003e) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePrincipe de séparation\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tMulti-mode (RP et NP), Phase inverse (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eType de particule\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tParticules entièrement poreuses (FPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des particules\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t5 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface spécifique selon BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t340 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eVolume des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t0.9 ml\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t110 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité thermique\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t60 ° C \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité à la pression\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t600 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité au pH\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t2.0 - 8.0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTeneur en carbone\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t2.5 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56125350412620,"sku":"1NEC.1","price":170.95,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56125350445388,"sku":"1NEC.1","price":162.4,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56125350478156,"sku":"1NEC.1","price":153.86,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_2ea460b9-8112-4486-8c30-9d92138dd1c9.jpg?v=1766403599"},{"product_id":"hplc-guard-columns-nucleodur-1nep-1nep","title":"Colonnes de garde HPLC NUCLEODUR®, 100-5 NH2, 4x3 mm, 3 unité(s)","description":"\u003cp\u003eColonnes de garde HPLC NUCLEODUR®, 100-5 NH\u003csub\u003e2\u003c\/sub\u003e, 4x\u003csub\u003e3\u003c\/sub\u003e mm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003ePour protéger votre colonne HPLC principale de la contamination, il est recommandé d'utiliser des colonnes de garde. Ces courtes colonnes sont placées dans un support de colonne de garde. Le support de colonne de garde, combiné à une colonne de garde à l'intérieur, est installé entre l'injecteur et la colonne HPLC. Cette installation empêche les impuretés chimiques d'atteindre la colonne principale. En effet, une contamination pourrait former une liaison irréversible avec le matériau de remplissage de la colonne (phase stationnaire), ce qui peut réduire la durée de vie de la colonne. Si vous souhaitez prolonger la durée de vie de votre colonne principale, ces courtes colonnes peuvent vous aider.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eD'autres produits attrayants pour compléter votre laboratoire de chromatographie se trouvent sur notre page \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatographie\u003c\/b\u003e\u003c\/a\u003e !\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Note --\u003e\n\u003c!-- Base product name --\u003e\n\u003c!-- DetailElements --\u003e\n\u003c!-- DeliveryText --\u003e\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eInformations techniques\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eLongueur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eDiamètre intérieur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø interne (colonne)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\toui \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eÉluant dans la colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\u003ci\u003en\u003c\/i\u003e-Heptane \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eChimie de surface\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tModification Aminopropyle (NH\u003csub\u003e2\u003c\/sub\u003e) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePrincipe de séparation\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tMulti-mode (NP et RP), Phase normale (NP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eType de particule\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tParticules entièrement poreuses (FPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des particules\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t5 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface spécifique selon BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t340 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eVolume des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t0.9 ml\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t110 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité thermique\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t60 ° C \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité à la pression\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t600 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité au pH\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t2.0 - 8.0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTeneur en carbone\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t2.5 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56125351297356,"sku":"1NEP.1","price":170.95,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56125351330124,"sku":"1NEP.1","price":162.4,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56125351362892,"sku":"1NEP.1","price":153.86,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_61461756-b4c0-4794-a337-07d07a8fbe7d.jpg?v=1766403602"},{"product_id":"hplc-guard-columns-nucleodur-1ppe-1ppe","title":"Colonnes de garde HPLC NUCLEODUR®, 100-5 C18 ec, 4x3 mm, 3 unité(s)","description":"\u003cp\u003eColonnes de garde HPLC NUCLEODUR®, 100-5 C\u003csub\u003e18\u003c\/sub\u003e ec, 4x\u003csub\u003e3\u003c\/sub\u003e mm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003ePour protéger votre colonne HPLC principale de la contamination, il est recommandé d'utiliser des colonnes de garde. Ces courtes colonnes sont placées dans un support de colonne de garde. Le support de colonne de garde, combiné à une colonne de garde à l'intérieur, est installé entre l'injecteur et la colonne HPLC. Cette installation empêche les impuretés chimiques d'atteindre la colonne principale. En effet, une contamination pourrait former une liaison irréversible avec le matériau de remplissage de la colonne (phase stationnaire), ce qui peut réduire la durée de vie de la colonne. Si vous souhaitez prolonger la durée de vie de votre colonne principale, ces courtes colonnes peuvent vous aider.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eD'autres produits attrayants pour compléter votre laboratoire de chromatographie se trouvent sur notre page \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatographie\u003c\/b\u003e\u003c\/a\u003e !\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Note --\u003e\n\u003c!-- Base product name --\u003e\n\u003c!-- DetailElements --\u003e\n\u003c!-- DeliveryText --\u003e\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eInformations techniques\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eLongueur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eDiamètre intérieur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø interne (colonne)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcappé\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\toui \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eÉluant dans la colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcétonitrile - Eau \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eChimie de surface\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tModification octadécyle monomérique à densité moyenne (C\u003csub\u003e18\u003c\/sub\u003e, ODS) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePrincipe de séparation\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tPhase inverse (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eType de particule\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tParticules entièrement poreuses (FPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des particules\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t5 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface spécifique selon BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t340 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eVolume des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t0.9 ml\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t110 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité thermique\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t60 ° C \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité à la pression\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t600 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité du pH\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1,0-9,0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTeneur en carbone\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t17.5 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eBase de données d'applications (Macherey-Nagel)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\u003ca href=\"https:\/\/chromaappdb.mn-net.com\/hplc?q=761932.30\" target=\"_blank\"\u003eHPLC\u003c\/a\u003e \u003ca href=\"https:\/\/chromaappdb.mn-net.com\/spe?q=761932.30\" target=\"_blank\"\u003eSPE\u003c\/a\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56125648240972,"sku":"1PPE.1","price":174.15,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56125648273740,"sku":"1PPE.1","price":165.44,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56125648306508,"sku":"1PPE.1","price":156.74,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_a94f845d-4b7c-48f1-90fc-24b55bb44922.jpg?v=1766405073"},{"product_id":"uhplc-guard-columns-nucleodur-1xx0-1xx0","title":"Colonnes de protection UHPLC NUCLEODUR®, C18 Gravity, 1,8 µm, 4x2 mm, 3 unité(s)","description":"\u003cp\u003eColonnes de garde UHPLC NUCLEODUR®, C\u003csub\u003e18\u003c\/sub\u003e Gravity, 1,8 µm, 4x\u003csub\u003e2\u003c\/sub\u003e mm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003ePour protéger votre colonne HPLC principale de la contamination, il est recommandé d'utiliser des colonnes de garde. Ces courtes colonnes sont placées dans un support de colonne de garde. Le support de colonne de garde, combiné à une colonne de garde à l'intérieur, est installé entre l'injecteur et la colonne HPLC. Cette installation empêche les impuretés chimiques d'atteindre la colonne principale. En effet, une contamination pourrait former une liaison irréversible avec le matériau de remplissage de la colonne (phase stationnaire), ce qui peut réduire la durée de vie de la colonne. Si vous souhaitez prolonger la durée de vie de votre colonne principale, ces courtes colonnes peuvent vous aider.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eD'autres produits attrayants pour compléter votre laboratoire de chromatographie se trouvent sur notre page \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatographie\u003c\/b\u003e\u003c\/a\u003e !\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Note --\u003e\n\u003c!-- Base product name --\u003e\n\u003c!-- DetailElements --\u003e\n\u003c!-- DeliveryText --\u003e\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eInformations techniques\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eLongueur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eDiamètre intérieur de colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø interne (colonne)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcappé\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\toui \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eÉluant dans la colonne\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcétonitrile - Eau \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eChimie de surface\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tDésactivé en base (BDS), modification octadécyle haute densité (C\u003csub\u003e18\u003c\/sub\u003e, ODS) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePrincipe de séparation\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tPhase inverse (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eType de particule\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tParticules entièrement poreuses (FPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des particules\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1,8 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface spécifique selon BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t340 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eVolume des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t0,9 ml\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTaille des pores\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t110 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eStabilité du pH\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1,0-11,0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTeneur en carbone\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t18 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56125788946764,"sku":"1XX0.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56125788979532,"sku":"1XX0.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56125789012300,"sku":"1XX0.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_c798f9eb-5302-49f9-af09-827b88c54530.jpg?v=1766405657"},{"product_id":"hplc-guard-columns-nucleoshell-21yl-21yl","title":"HPLC Guard Columns NUCLEOSHELL®, Phenyl-Hexyl, 2,7 µm, 4x2 mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEOSHELL®, Phenyl-Hexyl, 2,7 µm, 4x\u003csub\u003e2\u003c\/sub\u003e mm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\n\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFor protection of your main HPLC column from contamination, it is recommended to use guard columns. These short columns are placed into a guard column holder. The guard column holder in combination with a guard column inside is installed between the injector and the HPLC column. This installation prevents chemical impurities to reach the main column. Because a contamination could form an irreversible bond with the column packing material (stationary phase) and this can result in shorter column life. If you want to prolong the lifetime of your main column, then these short columns can help you.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFurther attractive products to complete your chromatography laboratory can be found on our \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatography\u003c\/b\u003e\u003c\/a\u003epage!\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- Note --\u003e\n\n\n\u003c!-- Base product name --\u003e\n\n\u003c!-- DetailElements --\u003e\n\n\n\u003c!-- DeliveryText --\u003e\n\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eTechnical Information\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn length\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn inner diameter\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø internal (column)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tyes \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEluent in column\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcetonitrile - Water \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface chemistry\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tPhenylhexyl modification \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSeparation principle\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tReversed phase (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle type\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tCore-shell, superficially porous particles (SPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSpecific surface according to BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t130 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTemperature stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t60 ° C \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003epH stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1,0-10,0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eCarbon content\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4.5 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56127864832332,"sku":"21YL.1","price":173.1,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56127864865100,"sku":"21YL.1","price":164.45,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56127864897868,"sku":"21YL.1","price":155.79,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_d39c7f72-1775-4711-9d55-43c0509d7bb3.jpg?v=1766411626"},{"product_id":"hplc-guard-columns-nucleoshell-21yn-21yn","title":"HPLC Guard Columns NUCLEOSHELL®, Phenyl-Hexyl, 2,7 µm, 4x3 mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEOSHELL®, Phenyl-Hexyl, 2,7 µm, 4x\u003csub\u003e3\u003c\/sub\u003e mm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\n\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFor protection of your main HPLC column from contamination, it is recommended to use guard columns. These short columns are placed into a guard column holder. The guard column holder in combination with a guard column inside is installed between the injector and the HPLC column. This installation prevents chemical impurities to reach the main column. Because a contamination could form an irreversible bond with the column packing material (stationary phase) and this can result in shorter column life. If you want to prolong the lifetime of your main column, then these short columns can help you.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFurther attractive products to complete your chromatography laboratory can be found on our \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatography\u003c\/b\u003e\u003c\/a\u003epage!\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- Note --\u003e\n\n\n\u003c!-- Base product name --\u003e\n\n\u003c!-- DetailElements --\u003e\n\n\n\u003c!-- DeliveryText --\u003e\n\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eTechnical Information\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn length\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn inner diameter\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø internal (column)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tyes \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEluent in column\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcetonitrile - Water \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface chemistry\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tPhenylhexyl modification \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSeparation principle\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tReversed phase (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle type\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tCore-shell, superficially porous particles (SPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSpecific surface according to BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t130 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eTemperature stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t60 ° C \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003epH stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1,0-10,0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eCarbon content\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4.5 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56127864996172,"sku":"21YN.1","price":173.1,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56127865028940,"sku":"21YN.1","price":164.45,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56127865061708,"sku":"21YN.1","price":155.79,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_25a9fa1a-bc98-40a5-8f9f-bdcf03c4043c.jpg?v=1766411627"},{"product_id":"hplc-guard-columns-nucleoshell-38k0-38k0","title":"HPLC Guard Columns NUCLEOSHELL®, PFP, 2.7µm, 4x2mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEOSHELL®, PFP, 2.7µm, 4x\u003csub\u003e2\u003c\/sub\u003emm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\n\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFor protection of your main HPLC column from contamination, it is recommended to use guard columns. These short columns are placed into a guard column holder. The guard column holder in combination with a guard column inside is installed between the injector and the HPLC column. This installation prevents chemical impurities to reach the main column. Because a contamination could form an irreversible bond with the column packing material (stationary phase) and this can result in shorter column life. If you want to prolong the lifetime of your main column, then these short columns can help you.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFurther attractive products to complete your chromatography laboratory can be found on our \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatography\u003c\/b\u003e\u003c\/a\u003epage!\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- Note --\u003e\n\n\n\u003c!-- Base product name --\u003e\n\n\u003c!-- DetailElements --\u003e\n\n\n\u003c!-- DeliveryText --\u003e\n\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eTechnical Information\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn length\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn inner diameter\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø internal (column)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tyes \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEluent in column\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcetonitrile - Water \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface chemistry\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tPentafluorophenylpropyl (PFP) modification \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSeparation principle\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tReversed phase (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle type\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tCore-shell, superficially porous particles (SPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t2.7 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSpecific surface according to BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t130 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t90 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePressure stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t600 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003epH stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1,0-9,0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eCarbon content\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151551082828,"sku":"38K0.1","price":173.1,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151551115596,"sku":"38K0.1","price":164.45,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151551148364,"sku":"38K0.1","price":155.79,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_226ba578-de1a-417a-8dec-fefccbebde9e.jpg?v=1766437217"},{"product_id":"hplc-guard-columns-nucleoshell-38k1-38k1","title":"HPLC Guard Columns NUCLEOSHELL®, PFP, 2.7µm, 4x3mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEOSHELL®, PFP, 2.7µm, 4x\u003csub\u003e3\u003c\/sub\u003emm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\n\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFor protection of your main HPLC column from contamination, it is recommended to use guard columns. These short columns are placed into a guard column holder. The guard column holder in combination with a guard column inside is installed between the injector and the HPLC column. This installation prevents chemical impurities to reach the main column. Because a contamination could form an irreversible bond with the column packing material (stationary phase) and this can result in shorter column life. If you want to prolong the lifetime of your main column, then these short columns can help you.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFurther attractive products to complete your chromatography laboratory can be found on our \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatography\u003c\/b\u003e\u003c\/a\u003epage!\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- Note --\u003e\n\n\n\u003c!-- Base product name --\u003e\n\n\u003c!-- DetailElements --\u003e\n\n\n\u003c!-- DeliveryText --\u003e\n\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eTechnical Information\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn length\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn inner diameter\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø internal (column)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tyes \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEluent in column\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcetonitrile - Water \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface chemistry\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tPentafluorophenylpropyl (PFP) modification \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSeparation principle\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tReversed phase (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle type\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tCore-shell, superficially porous particles (SPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t2.7 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSpecific surface according to BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t130 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t90 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePressure stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t600 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003epH stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1,0-9,0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eCarbon content\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151551246668,"sku":"38K1.1","price":173.1,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151551279436,"sku":"38K1.1","price":164.45,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151551312204,"sku":"38K1.1","price":155.79,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_e5ba0189-6746-4694-a534-8f84e2aed6b1.jpg?v=1766437218"},{"product_id":"hplc-guard-columns-nucleoshell-38k2-38k2","title":"HPLC Guard Columns NUCLEOSHELL®, HILIC, 2.7µm, 4x2mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEOSHELL® RP 18 with a particle size of 2,7 µm and dimensions of 4 × 2 mm serve as protective pre-columns in high-performance liquid chromatography. Installed before the analytical column, they help capture particulates and strongly retained sample components, reducing fouling of the main stationary-phase bed. The RP 18 reversed-phase chemistry matches widely used C18-type NUCLEOSHELL® analytical columns, supporting continuity of hydrophobic retention behaviour between guard and main column. Supplied in packs of 3 pc(s), the format is convenient for preventive maintenance cycles, spare stocking, and laboratories running several instruments in parallel. Each unit weighs 0,023 kg and fits compactly into compatible guard-column hardware. These NUCLEOSHELL® guard columns from manufacturer MACHEREY-NAGEL combine the stated particle size with RP 18 selectivity for methods that rely on octadecyl bonded phases. Using a matched RP 18 guard configuration is a standard approach to safeguarding analytical column performance in routine HPLC workflows.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article belongs on \u003ca href=\"\/fr-fr\/collections\/hplc-guard-columns\"\u003eHPLC guard columns\u003c\/a\u003e, in \u003ca href=\"\/fr-fr\/collections\/hplc-columns-and-accessories\"\u003eHPLC columns \u0026amp; accessories\u003c\/a\u003e.\u003c\/p\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151551344972,"sku":"38K2.2","price":173.1,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151551377740,"sku":"38K2.2","price":164.45,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151551410508,"sku":"38K2.2","price":155.79,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_67c662fd-c61b-4928-8e32-b8bdc78466b9.jpg?v=1766437219"},{"product_id":"hplc-guard-columns-nucleoshell-38k3-38k3","title":"HPLC Guard Columns NUCLEOSHELL®, RP 18, 2.7µm, 4x3mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEOSHELL® RP 18 with a particle size of 2,7 µm and dimensions of 4 × 3 mm are intended to protect analytical HPLC columns from sample-derived contamination. Positioned upstream of the main column, the guard cartridge retains particulates and highly adsorbed constituents that could otherwise degrade efficiency and alter retention on the analytical bed. RP 18 chemistry provides classic reversed-phase hydrophobic selectivity and is selected when the corresponding NUCLEOSHELL® analytical column also employs an RP 18 stationary phase. The pack contains 3 pc(s), supporting regular replacement intervals and multi-instrument laboratories. Cartridge weight is 0,022 kg, keeping handling simple during installation in compatible holders. These NUCLEOSHELL® guard columns from manufacturer MACHEREY-NAGEL align particle size and RP 18 phase type with matching analytical columns. Consistent guard and column pairing helps maintain method integrity while contributing to longer analytical-column service life in everyday HPLC practice.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article belongs on \u003ca href=\"\/fr-fr\/collections\/hplc-guard-columns\"\u003eHPLC guard columns\u003c\/a\u003e, in \u003ca href=\"\/fr-fr\/collections\/hplc-columns-and-accessories\"\u003eHPLC columns \u0026amp; accessories\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 3 pc(s)\u003c\/li\u003e\n\u003cli\u003eProduct type: HPLC guard column\u003c\/li\u003e\n\u003cli\u003eBrand: NUCLEOSHELL®\u003c\/li\u003e\n\u003cli\u003ePhase: RP 18\u003c\/li\u003e\n\u003cli\u003eParticle size: 2,7 µm\u003c\/li\u003e\n\u003cli\u003eColumn dimensions: 4 × 3 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151551508812,"sku":"38K3.1","price":173.1,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151551541580,"sku":"38K3.1","price":164.45,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151551574348,"sku":"38K3.1","price":155.79,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_2fc1bec5-0b40-4370-82ef-4beaaaaab93b.jpg?v=1766437219"},{"product_id":"hplc-guard-columns-nucleoshell-38k4-38k4","title":"HPLC Guard Columns NUCLEOSHELL®, RP 18, 5µm, 4x2mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEOSHELL®, RP 18, 5µm, 4x\u003csub\u003e2\u003c\/sub\u003emm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\n\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFor protection of your main HPLC column from contamination, it is recommended to use guard columns. These short columns are placed into a guard column holder. The guard column holder in combination with a guard column inside is installed between the injector and the HPLC column. This installation prevents chemical impurities to reach the main column. Because a contamination could form an irreversible bond with the column packing material (stationary phase) and this can result in shorter column life. If you want to prolong the lifetime of your main column, then these short columns can help you.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFurther attractive products to complete your chromatography laboratory can be found on our \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatography\u003c\/b\u003e\u003c\/a\u003epage!\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- Note --\u003e\n\n\n\u003c!-- Base product name --\u003e\n\n\u003c!-- DetailElements --\u003e\n\n\n\u003c!-- DeliveryText --\u003e\n\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eTechnical Information\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn length\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn inner diameter\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø internal (column)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tyes \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEluent in column\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcetonitrile - Water \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface chemistry\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tHigh density monomeric octadecyl (C\u003csub\u003e18\u003c\/sub\u003e, ODS) modification, Base deactivated (BDS) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSeparation principle\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tReversed phase (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle type\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tCore-shell, superficially porous particles (SPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t5 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSpecific surface according to BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t90 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t90 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePressure stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t600 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003epH stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1,0-11,0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eCarbon content\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t7.8 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151551672652,"sku":"38K4.1","price":173.1,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151551705420,"sku":"38K4.1","price":164.45,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151551738188,"sku":"38K4.1","price":155.79,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_f2fd1f04-2242-453f-a9a2-c2c578109809.jpg?v=1766437220"},{"product_id":"hplc-guard-columns-nucleoshell-38k5-38k5","title":"HPLC Guard Columns NUCLEOSHELL®, RP 18, 5µm, 4x3mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEOSHELL®, RP 18, 5µm, 4x\u003csub\u003e3\u003c\/sub\u003emm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\n\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFor protection of your main HPLC column from contamination, it is recommended to use guard columns. These short columns are placed into a guard column holder. The guard column holder in combination with a guard column inside is installed between the injector and the HPLC column. This installation prevents chemical impurities to reach the main column. Because a contamination could form an irreversible bond with the column packing material (stationary phase) and this can result in shorter column life. If you want to prolong the lifetime of your main column, then these short columns can help you.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFurther attractive products to complete your chromatography laboratory can be found on our \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatography\u003c\/b\u003e\u003c\/a\u003epage!\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- Note --\u003e\n\n\n\u003c!-- Base product name --\u003e\n\n\u003c!-- DetailElements --\u003e\n\n\n\u003c!-- DeliveryText --\u003e\n\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eTechnical Information\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn length\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn inner diameter\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø internal (column)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tyes \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEluent in column\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcetonitrile - Water \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface chemistry\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tHigh density monomeric octadecyl (C\u003csub\u003e18\u003c\/sub\u003e, ODS) modification, Base deactivated (BDS) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSeparation principle\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tReversed phase (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle type\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tCore-shell, superficially porous particles (SPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t5 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSpecific surface according to BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t90 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t90 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePressure stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t600 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003epH stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1,0-11,0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eCarbon content\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t7.8 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151551803724,"sku":"38K5.1","price":173.1,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151551836492,"sku":"38K5.1","price":164.45,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151551869260,"sku":"38K5.1","price":155.79,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_76c9a608-a0b5-42f6-8a5c-891343f89ce3.jpg?v=1766437222"},{"product_id":"hplc-guard-columns-nucleoshell-38k6-38k6","title":"HPLC Guard Columns NUCLEOSHELL®, RP 18plus, 2.7µm, 4x2mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEOSHELL® RP 18plus are short protective columns for reversed-phase liquid chromatography. They combine RP 18plus chemistry with a 2,7 µm particle size in a 4 × 2 mm format and are supplied as 3 pc(s) per pack. Installed ahead of the analytical column, these guards help retain particulate matter and strongly retained matrix components, supporting column lifetime and consistent chromatographic performance. The finer 2,7 µm particles align with higher-efficiency NUCLEOSHELL® shell-particle methods that demand careful system protection. Available from manufacturer MACHEREY-NAGEL, the set is suited to laboratories running RP 18plus separations that need matched guard hardware on hand for routine replacement. Approximate weight is 0,023 kg per unit pack context. Select guard dimensions and phase to correspond with the analytical column, observe recommended pressure and solvent limits, and exchange guards proactively to maintain stable retention, peak symmetry, and method robustness across analytical batches.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article belongs on \u003ca href=\"\/fr-fr\/collections\/hplc-guard-columns\"\u003eHPLC guard columns\u003c\/a\u003e, in \u003ca href=\"\/fr-fr\/collections\/hplc-columns-and-accessories\"\u003eHPLC columns \u0026amp; accessories\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 3 pc(s)\u003c\/li\u003e\n\u003cli\u003eProduct type: HPLC guard columns\u003c\/li\u003e\n\u003cli\u003eBrand: NUCLEOSHELL®\u003c\/li\u003e\n\u003cli\u003eStationary phase: RP 18plus\u003c\/li\u003e\n\u003cli\u003eParticle size: 2,7 µm\u003c\/li\u003e\n\u003cli\u003eColumn dimensions: 4 × 2 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151551967564,"sku":"38K6.1","price":173.1,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151552000332,"sku":"38K6.1","price":164.45,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151552033100,"sku":"38K6.1","price":155.79,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_f7b4ba33-398b-4a75-a893-b25d77069cf2.jpg?v=1766437222"},{"product_id":"hplc-guard-columns-nucleoshell-38k7-38k7","title":"HPLC Guard Columns NUCLEOSHELL®, RP 18plus, 2.7µm, 4x3mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEOSHELL® RP 18plus serve as protective pre-columns for reversed-phase HPLC applications. Specified with RP 18plus stationary phase and 2,7 µm particles, each element measures 4 × 3 mm and is offered in packs of 3 pc(s). Positioned upstream of the analytical column, the guard bed captures particulates and strongly retained sample components that can impair efficiency or shift selectivity on the main NUCLEOSHELL® column. The 2,7 µm particle size supports use with higher-efficiency shell-particle RP 18plus methods where system cleanliness is critical. Supplied from manufacturer MACHEREY-NAGEL, this configuration gives laboratories a convenient stock of matched guards for continuous method operation and scheduled maintenance. Unit weight is approximately 0,023 kg. Pair the guard phase and geometry with the analytical column in service, respect instrument pressure ratings, and replace guards at defined intervals to help preserve peak shape, back-pressure stability, and reproducible quantitative performance over extended sample workloads.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article belongs on \u003ca href=\"\/fr-fr\/collections\/hplc-guard-columns\"\u003eHPLC guard columns\u003c\/a\u003e, in \u003ca href=\"\/fr-fr\/collections\/hplc-columns-and-accessories\"\u003eHPLC columns \u0026amp; accessories\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 3 pc(s)\u003c\/li\u003e\n\u003cli\u003eProduct type: HPLC guard columns\u003c\/li\u003e\n\u003cli\u003eBrand: NUCLEOSHELL®\u003c\/li\u003e\n\u003cli\u003eStationary phase: RP 18plus\u003c\/li\u003e\n\u003cli\u003eParticle size: 2,7 µm\u003c\/li\u003e\n\u003cli\u003eColumn dimensions: 4 × 3 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151552065868,"sku":"38K7.1","price":173.1,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151552098636,"sku":"38K7.1","price":164.45,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151552131404,"sku":"38K7.1","price":155.79,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_fe87ea5a-da48-4a94-bd89-fc85be6a24fd.jpg?v=1766437222"},{"product_id":"hplc-guard-columns-nucleoshell-38k8-38k8","title":"HPLC Guard Columns NUCLEOSHELL®, RP 18plus, 5µm, 4x2mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEOSHELL® RP 18plus are protective pre-columns for high-performance liquid chromatography, specified with a 5 µm particle size and 4 x 2 mm geometry. The RP 18plus stationary phase supports reversed-phase workflows in which a short guard segment is placed ahead of the analytical column to retain particulates and strongly adsorbed matrix components. This configuration helps preserve separation performance and can reduce premature fouling of the main column during routine sample sequences. The NUCLEOSHELL® format is intended for laboratories that standardise on defined particle size and dimensions for method transfer and instrument setup. Offered as a pack of 3 pc(s) from manufacturer MACHEREY-NAGEL, the set suits method development, QC and research environments that require ready replacement guards with matching chemistry. Pack weight is 0,023 kg. Use these guard columns wherever reversed-phase HPLC methods call for compact RP 18plus protection with clearly stated particle and column dimensions before the analytical bed.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article belongs on \u003ca href=\"\/fr-fr\/collections\/hplc-guard-columns\"\u003eHPLC guard columns\u003c\/a\u003e, in \u003ca href=\"\/fr-fr\/collections\/hplc-columns-and-accessories\"\u003eHPLC columns \u0026amp; accessories\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 3 pc(s)\u003c\/li\u003e\n\u003cli\u003eProduct type: HPLC guard columns\u003c\/li\u003e\n\u003cli\u003eSeries: NUCLEOSHELL®\u003c\/li\u003e\n\u003cli\u003eStationary phase: RP 18plus\u003c\/li\u003e\n\u003cli\u003eParticle size: 5 µm\u003c\/li\u003e\n\u003cli\u003eDimensions: 4 x 2 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151552164172,"sku":"38K8.1","price":173.1,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151552196940,"sku":"38K8.1","price":164.45,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151552229708,"sku":"38K8.1","price":155.79,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_1f5bf165-1c4c-4b39-ba23-de1f248f55a3.jpg?v=1766437223"},{"product_id":"hplc-guard-columns-nucleoshell-38k9-38k9","title":"HPLC Guard Columns NUCLEOSHELL®, HILIC, 2.7µm, 4x3mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEOSHELL® HILIC are dedicated protective pre-columns for hydrophilic interaction liquid chromatography, supplied with a 2,7 µm particle size and 4 x 3 mm dimensions. The HILIC chemistry is intended for polar analyte methods in which a short guard segment is installed upstream of the analytical column to capture particulates and strongly retained matrix constituents. This arrangement supports stable system performance and can help extend analytical column lifetime under demanding sample loads. The NUCLEOSHELL® HILIC specification gives laboratories a defined particle size and geometry for consistent instrument configuration and method documentation. Packaged as 3 pc(s) from manufacturer MACHEREY-NAGEL, the set is practical for routine stock in pharmaceutical, metabolomics, food and environmental HPLC laboratories that run HILIC separations. Pack weight is 0,023 kg. Select these guard columns when HILIC methods require compact, dimensionally specified protection ahead of the main column bed.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article belongs on \u003ca href=\"\/fr-fr\/collections\/hplc-guard-columns\"\u003eHPLC guard columns\u003c\/a\u003e, in \u003ca href=\"\/fr-fr\/collections\/hplc-columns-and-accessories\"\u003eHPLC columns \u0026amp; accessories\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 3 pc(s)\u003c\/li\u003e\n\u003cli\u003eProduct type: HPLC guard columns\u003c\/li\u003e\n\u003cli\u003eSeries: NUCLEOSHELL®\u003c\/li\u003e\n\u003cli\u003eStationary phase: HILIC\u003c\/li\u003e\n\u003cli\u003eParticle size: 2,7 µm\u003c\/li\u003e\n\u003cli\u003eDimensions: 4 x 3 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151552328012,"sku":"38K9.1","price":173.1,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151552360780,"sku":"38K9.1","price":164.45,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151552393548,"sku":"38K9.1","price":155.79,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_0a67c416-86ee-4700-a5db-77beed6ef310.jpg?v=1766437224"},{"product_id":"hplc-guard-columns-nucleoshell-38ka-38ka","title":"HPLC Guard Columns NUCLEOSHELL®, RP 18plus, 5µm, 4x3mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEOSHELL®, RP 18plus, 5µm, 4x\u003csub\u003e3\u003c\/sub\u003emm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\n\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFor protection of your main HPLC column from contamination, it is recommended to use guard columns. These short columns are placed into a guard column holder. The guard column holder in combination with a guard column inside is installed between the injector and the HPLC column. This installation prevents chemical impurities to reach the main column. Because a contamination could form an irreversible bond with the column packing material (stationary phase) and this can result in shorter column life. If you want to prolong the lifetime of your main column, then these short columns can help you.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFurther attractive products to complete your chromatography laboratory can be found on our \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatography\u003c\/b\u003e\u003c\/a\u003epage!\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- Note --\u003e\n\n\n\u003c!-- Base product name --\u003e\n\n\u003c!-- DetailElements --\u003e\n\n\n\u003c!-- DeliveryText --\u003e\n\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eTechnical Information\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn length\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn inner diameter\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø internal (column)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tyes \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEluent in column\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcetonitrile - Water \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface chemistry\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tMonomeric octadecyl (C\u003csub\u003e18\u003c\/sub\u003e, RP\u003csub\u003e18\u003c\/sub\u003e, ODS) modification, Polar selectivity \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSeparation principle\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tReversed phase (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle type\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tCore-shell, superficially porous particles (SPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t5 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSpecific surface according to BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t90 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t90 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePressure stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t600 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003epH stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t2,0-9,0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eCarbon content\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t5.7 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151552426316,"sku":"38KA.1","price":173.1,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151552459084,"sku":"38KA.1","price":164.45,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151552491852,"sku":"38KA.1","price":155.79,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_e6ee7ca6-450b-430b-b3ea-12c5b9028c0b.jpg?v=1766437225"},{"product_id":"hplc-guard-columns-nucleodur-38kc-38kc","title":"HPLC Guard Columns NUCLEODUR®, C18 PAH, 1.8µm, 4x2mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEODUR® C18 PAH are protective pre-columns for high-performance liquid chromatography, specified with a 1,8 µm particle size and 4 x 2 mm geometry. The C18 PAH stationary phase is intended for polycyclic aromatic hydrocarbon and related reversed-phase separations in which a short guard segment shields the analytical column from particulates and strongly retained matrix components. Installing a matching guard helps maintain peak shape and can reduce premature column fouling during sequential sample injections. The NUCLEODUR® C18 PAH format gives laboratories defined particle and dimension data for method transfer, system qualification and inventory control. Supplied as 3 pc(s) from manufacturer MACHEREY-NAGEL, the pack supports routine replacement in environmental, food and industrial HPLC laboratories working with PAH-oriented C18 methods. Pack weight is 0,019 kg. Choose these guard columns when compact C18 PAH protection with 1,8 µm particles and 4 x 2 mm dimensions is required upstream of the analytical column.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article belongs on \u003ca href=\"\/fr-fr\/collections\/hplc-guard-columns\"\u003eHPLC guard columns\u003c\/a\u003e, in \u003ca href=\"\/fr-fr\/collections\/hplc-columns-and-accessories\"\u003eHPLC columns \u0026amp; accessories\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 3 pc(s)\u003c\/li\u003e\n\u003cli\u003eProduct type: HPLC guard columns\u003c\/li\u003e\n\u003cli\u003eSeries: NUCLEODUR®\u003c\/li\u003e\n\u003cli\u003eStationary phase: C18 PAH\u003c\/li\u003e\n\u003cli\u003eParticle size: 1,8 µm\u003c\/li\u003e\n\u003cli\u003eDimensions: 4 x 2 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151552655692,"sku":"38KC.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151552688460,"sku":"38KC.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151552721228,"sku":"38KC.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_a3e24319-f08c-43de-82eb-9e55b5bec463.jpg?v=1766437225"},{"product_id":"hplc-guard-columns-nucleodur-38ke-38ke","title":"HPLC Guard Columns NUCLEODUR®, C18 PAH, 3µm, 4x3mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEODUR® C18 PAH with 3 µm particles and 4 x 3 mm format are short protective cartridges for high-performance liquid chromatography. Placed upstream of the analytical column, they retain particulates and strongly adsorbed matrix components, helping preserve separation efficiency and extend column lifetime in routine and complex-sample work. The C18 PAH bonded phase supports reversed-phase methods focused on polycyclic aromatic hydrocarbons and related hydrophobic analytes that benefit from C18 selectivity. Each pack contains 3 pc(s) and has a net weight of 0,027 kg, making it practical for method development, system qualification, and day-to-day sample sequences. These NUCLEODUR® guard columns from manufacturer MACHEREY-NAGEL use established silica chemistry familiar to many HPLC laboratories and fit standard HPLC hardware configurations. The compact 4 x 3 mm geometry keeps extra-column volume low while still offering meaningful protection. Analytical labs running environmental, food, or research PAH workflows can integrate the cartridges quickly without redesigning existing methods or instrument plumbing.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article belongs on \u003ca href=\"\/fr-fr\/collections\/hplc-guard-columns\"\u003eHPLC guard columns\u003c\/a\u003e, in \u003ca href=\"\/fr-fr\/collections\/hplc-columns-and-accessories\"\u003eHPLC columns \u0026amp; accessories\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 3 pc(s)\u003c\/li\u003e\n\u003cli\u003eProduct type: HPLC guard column\u003c\/li\u003e\n\u003cli\u003eStationary phase: C18 PAH\u003c\/li\u003e\n\u003cli\u003eParticle size: 3 µm\u003c\/li\u003e\n\u003cli\u003eDimensions: 4 x 3 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 0,027 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151552753996,"sku":"38KE.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151552786764,"sku":"38KE.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151552819532,"sku":"38KE.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_adf8cf5d-cb4b-4af7-bf68-995d424c1e78.jpg?v=1766437225"},{"product_id":"uhplc-guard-columns-nucleodur-38kh-38kh","title":"UHPLC Guard Columns NUCLEODUR®, C18 PAH, 1.8µm, 4x3mm, 3 unit(s)","description":"\u003cp\u003eUHPLC Guard Columns NUCLEODUR® C18 PAH with 1,8 µm particles and 4 x 3 mm dimensions protect ultra-high-performance liquid chromatography columns from particulates and strongly retained sample constituents. The fine particle bed matches modern UHPLC pressures and efficiencies, limiting early fouling of the main analytical column while maintaining sharp peak shapes. C18 PAH chemistry is intended for reversed-phase separations of polycyclic aromatic hydrocarbons and similarly hydrophobic compounds that require robust C18 selectivity under fast gradient or high-throughput conditions. The product is supplied as 3 pc(s) with a pack weight of 0,481 kg, suitable for laboratories that run frequent UHPLC sequences and need ready spare guards. Produced by MACHEREY-NAGEL within the NUCLEODUR® portfolio, these cartridges align with established silica-based UHPLC practice. The short 4 x 3 mm format keeps system volume low and installs easily on standard UHPLC hardware. Environmental, food-control, and research groups working with PAH-type analytes can use them to safeguard high-value sub-2 µm analytical columns without changing method chemistry.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article belongs on \u003ca href=\"\/fr-fr\/collections\/hplc-guard-columns\"\u003eHPLC guard columns\u003c\/a\u003e, in \u003ca href=\"\/fr-fr\/collections\/hplc-columns-and-accessories\"\u003eHPLC columns \u0026amp; accessories\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 3 pc(s)\u003c\/li\u003e\n\u003cli\u003eProduct type: UHPLC guard column\u003c\/li\u003e\n\u003cli\u003eStationary phase: C18 PAH\u003c\/li\u003e\n\u003cli\u003eParticle size: 1,8 µm\u003c\/li\u003e\n\u003cli\u003eDimensions: 4 x 3 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 0,481 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151553016140,"sku":"38KH.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151553048908,"sku":"38KH.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151553081676,"sku":"38KH.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_8bedfad9-6bf7-465e-927c-1409856ca2df.jpg?v=1766437226"},{"product_id":"uhplc-guard-columns-nucleodur-38kk-38kk","title":"UHPLC Guard Columns NUCLEODUR®, PFP, 1.8µm, 4x2mm, 3 unit(s)","description":"\u003cp\u003eUHPLC Guard Columns NUCLEODUR®, PFP, 1.8µm, 4x\u003csub\u003e2\u003c\/sub\u003emm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\n\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFor protection of your main HPLC column from contamination, it is recommended to use guard columns. These short columns are placed into a guard column holder. The guard column holder in combination with a guard column inside is installed between the injector and the HPLC column. This installation prevents chemical impurities to reach the main column. Because a contamination could form an irreversible bond with the column packing material (stationary phase) and this can result in shorter column life. If you want to prolong the lifetime of your main column, then these short columns can help you.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFurther attractive products to complete your chromatography laboratory can be found on our \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatography\u003c\/b\u003e\u003c\/a\u003epage!\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- Note --\u003e\n\n\n\u003c!-- Base product name --\u003e\n\n\u003c!-- DetailElements --\u003e\n\n\n\u003c!-- DeliveryText --\u003e\n\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eTechnical Information\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn length\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn inner diameter\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø internal (column)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tyes \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEluent in column\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcetonitrile - Water \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface chemistry\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tPentafluorophenylpropyl (PFP) modification \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSeparation principle\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tReversed phase (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle type\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tFully porous particles (FPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1.8 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSpecific surface according to BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t340 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore volume\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t0.9 ml\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t110 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePressure stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t900 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003epH stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1,0-9,0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eCarbon content\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t8 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151553179980,"sku":"38KK.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151553212748,"sku":"38KK.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151553245516,"sku":"38KK.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_88be5d96-163a-46bc-b2b4-a5ec005b1285.jpg?v=1766437227"},{"product_id":"uhplc-guard-columns-nucleodur-38kl-38kl","title":"UHPLC Guard Columns NUCLEODUR®, PFP, 1.8µm, 4x3mm, 3 unit(s)","description":"\u003cp\u003eUHPLC Guard Columns NUCLEODUR®, PFP, 1.8µm, 4x\u003csub\u003e3\u003c\/sub\u003emm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\n\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFor protection of your main HPLC column from contamination, it is recommended to use guard columns. These short columns are placed into a guard column holder. The guard column holder in combination with a guard column inside is installed between the injector and the HPLC column. This installation prevents chemical impurities to reach the main column. Because a contamination could form an irreversible bond with the column packing material (stationary phase) and this can result in shorter column life. If you want to prolong the lifetime of your main column, then these short columns can help you.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFurther attractive products to complete your chromatography laboratory can be found on our \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatography\u003c\/b\u003e\u003c\/a\u003epage!\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- Note --\u003e\n\n\n\u003c!-- Base product name --\u003e\n\n\u003c!-- DetailElements --\u003e\n\n\n\u003c!-- DeliveryText --\u003e\n\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eTechnical Information\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn length\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn inner diameter\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø internal (column)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tyes \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEluent in column\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcetonitrile - Water \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface chemistry\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tPentafluorophenylpropyl (PFP) modification \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSeparation principle\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tReversed phase (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle type\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tFully porous particles (FPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1.8 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSpecific surface according to BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t340 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore volume\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t0.9 ml\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t110 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePressure stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t800 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003epH stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1,0-9,0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eCarbon content\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t8 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151553278284,"sku":"38KL.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151553311052,"sku":"38KL.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151553343820,"sku":"38KL.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_84a66286-9806-4716-b959-7e0313328aa3.jpg?v=1766437229"},{"product_id":"hplc-guard-columns-nucleodur-38kn-38kn","title":"HPLC Guard Columns NUCLEODUR®, PFP, 3µm, 4x2mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEODUR®, PFP, 3µm, 4x\u003csub\u003e2\u003c\/sub\u003emm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\n\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFor protection of your main HPLC column from contamination, it is recommended to use guard columns. These short columns are placed into a guard column holder. The guard column holder in combination with a guard column inside is installed between the injector and the HPLC column. This installation prevents chemical impurities to reach the main column. Because a contamination could form an irreversible bond with the column packing material (stationary phase) and this can result in shorter column life. If you want to prolong the lifetime of your main column, then these short columns can help you.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFurther attractive products to complete your chromatography laboratory can be found on our \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatography\u003c\/b\u003e\u003c\/a\u003epage!\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- Note --\u003e\n\n\n\u003c!-- Base product name --\u003e\n\n\u003c!-- DetailElements --\u003e\n\n\n\u003c!-- DeliveryText --\u003e\n\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eTechnical Information\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn length\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn inner diameter\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø internal (column)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tyes \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEluent in column\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcetonitrile - Water \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface chemistry\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tPentafluorophenylpropyl (PFP) modification \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSeparation principle\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tReversed phase (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle type\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tFully porous particles (FPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSpecific surface according to BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t340 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore volume\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t0.9 ml\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t110 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePressure stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t600 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003epH stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1,0-9,0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eCarbon content\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t8 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151553376588,"sku":"38KN.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151553409356,"sku":"38KN.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151553442124,"sku":"38KN.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_c2e395d4-83a3-46d9-8fbe-b8de83265ca8.jpg?v=1766437229"},{"product_id":"uhplc-guard-columns-nucleodur-38kp-38kp","title":"UHPLC Guard Columns NUCLEODUR®, Phenyl-Hexyl, 1.8µm, 4x2mm, 3 unit(s)","description":"\u003cp\u003eUHPLC Guard Columns NUCLEODUR® Phenyl-Hexyl provide front-end protection for ultra-high-performance liquid chromatography systems. This configuration uses a phenyl-hexyl bonded phase on 1,8 µm particles within a 4 x 2 mm body and is supplied in packs of 3 pc(s). The fine particle diameter is aligned with UHPLC operating pressures and flow regimes, helping to retain the efficiency of the downstream analytical column while trapping debris and strongly adsorbed sample constituents. Phenyl-hexyl selectivity supports π–π and hydrophobic interactions that are frequently exploited for aromatic and moderately polar compounds. Compact dimensions allow the guard cartridge to be mounted in compatible holders without excessive extra-column volume. These NUCLEODUR® units from manufacturer MACHEREY-NAGEL are intended for laboratories that already run phenyl-hexyl UHPLC methods and wish to extend analytical-column lifetime through routine guard replacement. The three-piece pack supports continuous operation and scheduled maintenance in high-throughput chromatographic environments.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article belongs on \u003ca href=\"\/fr-fr\/collections\/hplc-guard-columns\"\u003eHPLC guard columns\u003c\/a\u003e, in \u003ca href=\"\/fr-fr\/collections\/hplc-columns-and-accessories\"\u003eHPLC columns \u0026amp; accessories\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 3 pc(s)\u003c\/li\u003e\n\u003cli\u003eType: UHPLC guard column\u003c\/li\u003e\n\u003cli\u003eBrand: NUCLEODUR®\u003c\/li\u003e\n\u003cli\u003eStationary phase: Phenyl-Hexyl\u003c\/li\u003e\n\u003cli\u003eParticle size: 1,8 µm\u003c\/li\u003e\n\u003cli\u003eDimensions: 4 x 2 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151553474892,"sku":"38KP.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151553507660,"sku":"38KP.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151553540428,"sku":"38KP.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_8da80159-1d73-4e12-a962-81ab4df3cbba.jpg?v=1766437229"},{"product_id":"hplc-guard-columns-nucleodur-38kt-38kt","title":"HPLC Guard Columns NUCLEODUR®, PFP, 3µm, 4x3mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEODUR® PFP in the 4 x 3 mm format deliver pre-column protection for high-performance liquid chromatography. The cartridges combine a pentafluorophenyl (PFP) stationary phase with 3 µm particles and are offered as 3 pc(s) per pack. Compared with narrower 2 mm internal-diameter guards, the 3 mm bore increases bed volume while remaining compatible with standard HPLC guard holders. PFP chemistry provides distinctive aromatic and polar interactions that complement alkyl phases, so the guard can be matched to PFP analytical columns without introducing a mismatched selectivity zone. NUCLEODUR® construction keeps the protective bed short, limiting additional system volume and pressure drop. These columns from manufacturer MACHEREY-NAGEL are suited to routine HPLC work where sample matrices may contain particulates or late-eluting components that would otherwise foul the main column. Supplying three identical units per pack enables planned exchange intervals and consistent chromatographic performance across successive analytical sequences.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article belongs on \u003ca href=\"\/fr-fr\/collections\/hplc-guard-columns\"\u003eHPLC guard columns\u003c\/a\u003e, in \u003ca href=\"\/fr-fr\/collections\/hplc-columns-and-accessories\"\u003eHPLC columns \u0026amp; accessories\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 3 pc(s)\u003c\/li\u003e\n\u003cli\u003eType: HPLC guard column\u003c\/li\u003e\n\u003cli\u003eBrand: NUCLEODUR®\u003c\/li\u003e\n\u003cli\u003eStationary phase: PFP\u003c\/li\u003e\n\u003cli\u003eParticle size: 3 µm\u003c\/li\u003e\n\u003cli\u003eDimensions: 4 x 3 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151553638732,"sku":"38KT.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151553671500,"sku":"38KT.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151553704268,"sku":"38KT.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_c64d81d8-82c3-45f5-9c84-d3ca89d1635b.jpg?v=1766437230"},{"product_id":"hplc-guard-columns-nucleodur-38kx-38kx","title":"HPLC Guard Columns NUCLEODUR®, PFP, 5µm, 4x2mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEODUR® PFP with 5 µm particles and 4 x 2 mm dimensions serve as protective pre-columns for conventional HPLC systems. The pentafluorophenyl phase and larger particle size relative to sub-2 µm media yield moderate back-pressure while still intercepting particulates and strongly retained matrix species before they reach the analytical column. Packaged as 3 pc(s), the set supports regular guard replacement without interrupting method continuity. The compact 4 x 2 mm geometry fits common guard-column hardware and keeps extra-column volume low. PFP selectivity is useful when the primary separation already relies on aromatic or halogen-sensitive interactions, allowing the guard bed to mirror the analytical chemistry. Produced by MACHEREY-NAGEL under the NUCLEODUR® line, these cartridges are intended for laboratories seeking straightforward column protection in standard HPLC workflows. Three identical units per pack facilitate inventory control and scheduled maintenance across multiple instruments or extended method sequences.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article belongs on \u003ca href=\"\/fr-fr\/collections\/hplc-guard-columns\"\u003eHPLC guard columns\u003c\/a\u003e, in \u003ca href=\"\/fr-fr\/collections\/hplc-columns-and-accessories\"\u003eHPLC columns \u0026amp; accessories\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 3 pc(s)\u003c\/li\u003e\n\u003cli\u003eType: HPLC guard column\u003c\/li\u003e\n\u003cli\u003eBrand: NUCLEODUR®\u003c\/li\u003e\n\u003cli\u003eStationary phase: PFP\u003c\/li\u003e\n\u003cli\u003eParticle size: 5 µm\u003c\/li\u003e\n\u003cli\u003eDimensions: 4 x 2 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151553737036,"sku":"38KX.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151553769804,"sku":"38KX.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151553802572,"sku":"38KX.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_af9d8c42-5309-4016-b236-bd5c4ac51f9a.jpg?v=1766437231"},{"product_id":"hplc-guard-columns-nucleodur-38ky-38ky","title":"HPLC Guard Columns NUCLEODUR®, PFP, 5µm, 4x3mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEODUR® PFP, 5 µm, 4 × 3 mm are protective pre-columns for high-performance liquid chromatography. The pentafluorophenyl (PFP) phase and 5 µm particle size support reversed-phase work where aromatic, polar and hydrophobic interactions are useful, while the compact 4 × 3 mm format fits standard guard holders ahead of the analytical column. Guard columns help intercept particulates and strongly retained matrix components before they reach the main column, supporting stable retention and peak shape in routine HPLC. This pack contains 3 pc(s) and has a total weight of 0,023 kg, convenient for scheduled replacement in method development, QC and analytical laboratories. The NUCLEODUR® guard format from manufacturer MACHEREY-NAGEL is intended for use with matching HPLC systems and compatible analytical columns. Clear specification of phase, particle size and geometry simplifies selection when building or maintaining PFP-based methods. These guard columns provide a practical consumable option for laboratories that need reliable column protection without changing the core separation chemistry of the analytical setup.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article belongs on \u003ca href=\"\/fr-fr\/collections\/hplc-guard-columns\"\u003eHPLC guard columns\u003c\/a\u003e, in \u003ca href=\"\/fr-fr\/collections\/hplc-columns-and-accessories\"\u003eHPLC columns \u0026amp; accessories\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 3 pc(s)\u003c\/li\u003e\n\u003cli\u003eProduct type: HPLC guard columns\u003c\/li\u003e\n\u003cli\u003eBrand: NUCLEODUR®\u003c\/li\u003e\n\u003cli\u003eStationary phase: PFP\u003c\/li\u003e\n\u003cli\u003eParticle size: 5 µm\u003c\/li\u003e\n\u003cli\u003eDimensions: 4 × 3 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151553868108,"sku":"38KY.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151553900876,"sku":"38KY.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151553933644,"sku":"38KY.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_aa0cfd3c-8930-40d0-bd59-4f0facff2ebf.jpg?v=1766437232"},{"product_id":"uhplc-guard-columns-nucleodur-38l0-38l0","title":"UHPLC Guard Columns NUCLEODUR®, C18 HTec, 1.8µm, 4x2mm, 3 unit(s)","description":"\u003cp\u003eUHPLC Guard Columns NUCLEODUR®, C\u003csub\u003e18\u003c\/sub\u003e HTec, 1.8µm, 4x\u003csub\u003e2\u003c\/sub\u003emm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\n\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFor protection of your main HPLC column from contamination, it is recommended to use guard columns. These short columns are placed into a guard column holder. The guard column holder in combination with a guard column inside is installed between the injector and the HPLC column. This installation prevents chemical impurities to reach the main column. Because a contamination could form an irreversible bond with the column packing material (stationary phase) and this can result in shorter column life. If you want to prolong the lifetime of your main column, then these short columns can help you.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFurther attractive products to complete your chromatography laboratory can be found on our \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatography\u003c\/b\u003e\u003c\/a\u003epage!\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- Note --\u003e\n\n\n\u003c!-- Base product name --\u003e\n\n\u003c!-- DetailElements --\u003e\n\n\n\u003c!-- DeliveryText --\u003e\n\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eTechnical Information\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn length\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn inner diameter\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø internal (column)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tyes \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEluent in column\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcetonitrile - Water \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface chemistry\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tBase deactivated (BDS), High density octadecyl (C\u003csub\u003e18\u003c\/sub\u003e, ODS) modification \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSeparation principle\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tReversed phase (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle type\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tFully porous particles (FPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1.8 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSpecific surface according to BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t340 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore volume\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t0.9 ml\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t110 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePressure stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t900 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003epH stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1,0-11,0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eCarbon content\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t18 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151553966412,"sku":"38L0.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151553999180,"sku":"38L0.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151554031948,"sku":"38L0.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_a60744c4-e93c-408a-983a-a31bfc178b8c.jpg?v=1766437232"},{"product_id":"uhplc-guard-columns-nucleodur-38l1-38l1","title":"UHPLC Guard Columns NUCLEODUR®, C18 HTec, 1.8µm, 4x3mm, 3 unit(s)","description":"\u003cp\u003eUHPLC Guard Columns NUCLEODUR® C18 HTec, 1,8 µm, 4 × 3 mm provide upstream protection for ultra-high-performance liquid chromatography columns. Featuring C18 HTec chemistry and 1,8 µm particles in a 4 × 3 mm format, they are intended for UHPLC reversed-phase setups that demand fine-particle performance and conventional C18 selectivity. Installed before the analytical column, the guard bed helps retain particulates and highly retained matrix components, supporting stable chromatography under elevated UHPLC pressures. The pack comprises 3 pc(s) and weighs 0,023 kg, suitable for planned exchange in busy analytical environments. Manufactured by MACHEREY-NAGEL, the NUCLEODUR® UHPLC guard line matches the stated phase and geometry for straightforward system configuration. Laboratories engaged in method transfer, QC release testing or high-throughput UHPLC can use these guards to help safeguard analytical media while keeping the separation chemistry consistent. Specification of particle size, phase and 4 × 3 mm dimensions supports accurate selection alongside compatible analytical columns and holders.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article belongs on \u003ca href=\"\/fr-fr\/collections\/hplc-guard-columns\"\u003eHPLC guard columns\u003c\/a\u003e, in \u003ca href=\"\/fr-fr\/collections\/hplc-columns-and-accessories\"\u003eHPLC columns \u0026amp; accessories\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 3 pc(s)\u003c\/li\u003e\n\u003cli\u003eProduct type: UHPLC guard columns\u003c\/li\u003e\n\u003cli\u003eBrand: NUCLEODUR®\u003c\/li\u003e\n\u003cli\u003eStationary phase: C18 HTec\u003c\/li\u003e\n\u003cli\u003eParticle size: 1,8 µm\u003c\/li\u003e\n\u003cli\u003eDimensions: 4 × 3 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151554097484,"sku":"38L1.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151554130252,"sku":"38L1.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151554163020,"sku":"38L1.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_effa56bc-b97c-4c50-a2a1-2686c0b5522a.jpg?v=1766437233"},{"product_id":"hplc-guard-columns-nucleodur-38l2-38l2","title":"HPLC Guard Columns NUCLEODUR®, C18 HTec, 3µm, 4x2mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEODUR® C18 HTec, 3 µm, 4 × 2 mm are protective pre-columns for high-performance liquid chromatography. The C18 HTec phase with 3 µm particles delivers classic reversed-phase behaviour in a compact 4 × 2 mm guard format placed ahead of the analytical column. Guard columns help limit contamination by particulates and strongly retained sample components, supporting reproducible retention and peak integrity during routine HPLC operation. This offering is packed as 3 pc(s) with a weight of 0,023 kg, convenient for stock rotation and scheduled replacement in analytical laboratories. The NUCLEODUR® guard columns from manufacturer MACHEREY-NAGEL are specified with C18 HTec chemistry for use alongside matching HPLC columns and standard guard hardware. Clear definition of particle size, phase and dimensions simplifies ordering when configuring or maintaining C18 methods. They suit method development, quality control and everyday HPLC applications that rely on C18 selectivity and benefit from dedicated column protection without altering the primary separation chemistry.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article belongs on \u003ca href=\"\/fr-fr\/collections\/hplc-guard-columns\"\u003eHPLC guard columns\u003c\/a\u003e, in \u003ca href=\"\/fr-fr\/collections\/hplc-columns-and-accessories\"\u003eHPLC columns \u0026amp; accessories\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 3 pc(s)\u003c\/li\u003e\n\u003cli\u003eProduct type: HPLC guard columns\u003c\/li\u003e\n\u003cli\u003eBrand: NUCLEODUR®\u003c\/li\u003e\n\u003cli\u003eStationary phase: C18 HTec\u003c\/li\u003e\n\u003cli\u003eParticle size: 3 µm\u003c\/li\u003e\n\u003cli\u003eDimensions: 4 × 2 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151554228556,"sku":"38L2.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151554261324,"sku":"38L2.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151554294092,"sku":"38L2.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_8738483d-7ec6-4d0b-a240-ed0bea8cbc62.jpg?v=1766437234"},{"product_id":"hplc-guard-columns-nucleodur-38l3-38l3","title":"HPLC Guard Columns NUCLEODUR®, C18 HTec, 3µm, 4x3mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEODUR®, C\u003csub\u003e18\u003c\/sub\u003e HTec, 3µm, 4x\u003csub\u003e3\u003c\/sub\u003emm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\n\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFor protection of your main HPLC column from contamination, it is recommended to use guard columns. These short columns are placed into a guard column holder. The guard column holder in combination with a guard column inside is installed between the injector and the HPLC column. This installation prevents chemical impurities to reach the main column. Because a contamination could form an irreversible bond with the column packing material (stationary phase) and this can result in shorter column life. If you want to prolong the lifetime of your main column, then these short columns can help you.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFurther attractive products to complete your chromatography laboratory can be found on our \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatography\u003c\/b\u003e\u003c\/a\u003epage!\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- Note --\u003e\n\n\n\u003c!-- Base product name --\u003e\n\n\u003c!-- DetailElements --\u003e\n\n\n\u003c!-- DeliveryText --\u003e\n\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eTechnical Information\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn length\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn inner diameter\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø internal (column)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tyes \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEluent in column\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcetonitrile - Water \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface chemistry\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tBase deactivated (BDS), High density octadecyl (C\u003csub\u003e18\u003c\/sub\u003e, ODS) modification \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSeparation principle\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tReversed phase (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle type\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tFully porous particles (FPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSpecific surface according to BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t340 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore volume\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t0.9 ml\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t110 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePressure stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t600 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003epH stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1,0-11,0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eCarbon content\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t18 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151554359628,"sku":"38L3.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151554392396,"sku":"38L3.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151554425164,"sku":"38L3.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_4c1f7064-578d-4b7d-b051-5c060d781fd9.jpg?v=1766437234"},{"product_id":"hplc-guard-columns-nucleodur-38l4-38l4","title":"HPLC Guard Columns NUCLEODUR®, C18 HTec, 5µm, 4x2mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEODUR®, C\u003csub\u003e18\u003c\/sub\u003e HTec, 5µm, 4x\u003csub\u003e2\u003c\/sub\u003emm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\n\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFor protection of your main HPLC column from contamination, it is recommended to use guard columns. These short columns are placed into a guard column holder. The guard column holder in combination with a guard column inside is installed between the injector and the HPLC column. This installation prevents chemical impurities to reach the main column. Because a contamination could form an irreversible bond with the column packing material (stationary phase) and this can result in shorter column life. If you want to prolong the lifetime of your main column, then these short columns can help you.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFurther attractive products to complete your chromatography laboratory can be found on our \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatography\u003c\/b\u003e\u003c\/a\u003epage!\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- Note --\u003e\n\n\n\u003c!-- Base product name --\u003e\n\n\u003c!-- DetailElements --\u003e\n\n\n\u003c!-- DeliveryText --\u003e\n\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eTechnical Information\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn length\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn inner diameter\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø internal (column)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tyes \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEluent in column\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcetonitrile - Water \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface chemistry\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tBase deactivated (BDS), High density octadecyl (C\u003csub\u003e18\u003c\/sub\u003e, ODS) modification \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSeparation principle\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tReversed phase (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle type\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tFully porous particles (FPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t5 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSpecific surface according to BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t340 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore volume\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t0.9 ml\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t110 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePressure stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t600 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003epH stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1,0-11,0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eCarbon content\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t18 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151554490700,"sku":"38L4.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151554523468,"sku":"38L4.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151554556236,"sku":"38L4.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_c4a5eee0-caa7-4936-aa28-b1e0be888618.jpg?v=1766437235"},{"product_id":"uhplc-guard-columns-nucleodur-38l5-38l5","title":"UHPLC Guard Columns NUCLEODUR®, Phenyl-Hexyl, 1.8µm, 4x3mm, 3 unit(s)","description":"\u003cp\u003eUHPLC Guard Columns NUCLEODUR®, Phenyl-Hexyl, 1.8µm, 4x\u003csub\u003e3\u003c\/sub\u003emm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\n\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFor protection of your main HPLC column from contamination, it is recommended to use guard columns. These short columns are placed into a guard column holder. The guard column holder in combination with a guard column inside is installed between the injector and the HPLC column. This installation prevents chemical impurities to reach the main column. Because a contamination could form an irreversible bond with the column packing material (stationary phase) and this can result in shorter column life. If you want to prolong the lifetime of your main column, then these short columns can help you.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFurther attractive products to complete your chromatography laboratory can be found on our \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatography\u003c\/b\u003e\u003c\/a\u003epage!\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- Note --\u003e\n\n\n\u003c!-- Base product name --\u003e\n\n\u003c!-- DetailElements --\u003e\n\n\n\u003c!-- DeliveryText --\u003e\n\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eTechnical Information\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn length\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn inner diameter\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø internal (column)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tyes \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEluent in column\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcetonitrile - Water \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface chemistry\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tPhenylhexyl modification \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSeparation principle\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tReversed phase (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle type\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tFully porous particles (FPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1.8 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSpecific surface according to BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t340 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore volume\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t0.9 ml\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t110 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePressure stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t800 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003epH stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1,0-10,0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eCarbon content\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t10 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151554654540,"sku":"38L5.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151554687308,"sku":"38L5.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151554720076,"sku":"38L5.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_2d7df4b6-2a2b-47a3-81f5-60ac8478565a.jpg?v=1766437235"},{"product_id":"hplc-guard-columns-nucleodur-38l6-38l6","title":"HPLC Guard Columns NUCLEODUR®, C18 HTec, 5µm, 4x3mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEODUR®, C\u003csub\u003e18\u003c\/sub\u003e HTec, 5µm, 4x\u003csub\u003e3\u003c\/sub\u003emm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\n\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFor protection of your main HPLC column from contamination, it is recommended to use guard columns. These short columns are placed into a guard column holder. The guard column holder in combination with a guard column inside is installed between the injector and the HPLC column. This installation prevents chemical impurities to reach the main column. Because a contamination could form an irreversible bond with the column packing material (stationary phase) and this can result in shorter column life. If you want to prolong the lifetime of your main column, then these short columns can help you.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFurther attractive products to complete your chromatography laboratory can be found on our \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatography\u003c\/b\u003e\u003c\/a\u003epage!\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- Note --\u003e\n\n\n\u003c!-- Base product name --\u003e\n\n\u003c!-- DetailElements --\u003e\n\n\n\u003c!-- DeliveryText --\u003e\n\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eTechnical Information\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn length\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn inner diameter\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø internal (column)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tyes \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEluent in column\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcetonitrile - Water \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface chemistry\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tBase deactivated (BDS), High density octadecyl (C\u003csub\u003e18\u003c\/sub\u003e, ODS) modification \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSeparation principle\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tReversed phase (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle type\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tFully porous particles (FPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t5 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSpecific surface according to BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t340 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore volume\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t0.9 ml\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t110 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePressure stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t600 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003epH stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1,0-11,0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eCarbon content\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t18 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151554785612,"sku":"38L6.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151554818380,"sku":"38L6.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151554851148,"sku":"38L6.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_3042b733-e13a-41cf-97d2-28fb295ef37d.jpg?v=1766437236"},{"product_id":"uhplc-guard-columns-nucleodur-38l7-38l7","title":"UHPLC Guard Columns NUCLEODUR®, PolarTec, 1.8µm, 4x2mm, 3 unit(s)","description":"\u003cp\u003eUHPLC Guard Columns NUCLEODUR®, PolarTec, 1.8µm, 4x\u003csub\u003e2\u003c\/sub\u003emm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\n\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFor protection of your main HPLC column from contamination, it is recommended to use guard columns. These short columns are placed into a guard column holder. The guard column holder in combination with a guard column inside is installed between the injector and the HPLC column. This installation prevents chemical impurities to reach the main column. Because a contamination could form an irreversible bond with the column packing material (stationary phase) and this can result in shorter column life. If you want to prolong the lifetime of your main column, then these short columns can help you.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFurther attractive products to complete your chromatography laboratory can be found on our \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatography\u003c\/b\u003e\u003c\/a\u003epage!\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- Note --\u003e\n\n\n\u003c!-- Base product name --\u003e\n\n\u003c!-- DetailElements --\u003e\n\n\n\u003c!-- DeliveryText --\u003e\n\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eTechnical Information\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn length\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn inner diameter\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø internal (column)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tyes \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEluent in column\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcetonitrile - Water \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface chemistry\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tOctadecyl phase (C\u003csub\u003e18\u003c\/sub\u003e, ODS) modification, with embedded polar group (PEG) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSeparation principle\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tReversed phase (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle type\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tFully porous particles (FPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1.8 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSpecific surface according to BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t340 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore volume\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t0.9 ml\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t110 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePressure stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t900 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003epH stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1,0-9,0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eCarbon content\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t17 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151554883916,"sku":"38L7.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151554916684,"sku":"38L7.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151554949452,"sku":"38L7.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_4af28667-98ac-470b-bbff-68760fbc7807.jpg?v=1766437237"},{"product_id":"uhplc-guard-columns-nucleodur-38l8-38l8","title":"UHPLC Guard Columns NUCLEODUR®, PolarTec, 1.8µm, 4x3mm, 3 unit(s)","description":"\u003cp\u003eUHPLC Guard Columns NUCLEODUR® PolarTec provide dedicated inlet protection for ultra-high-performance liquid chromatography columns. Specified with 1,8 µm particles and a 4 × 3 mm format, they are intended to trap particulates and strongly adsorbed sample constituents before they reach the analytical bed, helping maintain efficiency and reproducibility in demanding UHPLC methods. The PolarTec phase supports work with polar to moderately polar compounds where consistent guard performance is important. Supplied as 3 pc(s) per pack and weighing 0,019 kg, the set is convenient for scheduled replacement in busy chromatography laboratories. Manufactured by MACHEREY-NAGEL under the NUCLEODUR® line, these guards align with fine-particle UHPLC hardware and method conditions that require low dispersion and controlled geometry. Typical application areas include pharmaceutical QC, bioanalytical sample preparation workflows, environmental monitoring, and research separations that rely on stable column lifetime. Match the guard to the corresponding NUCLEODUR® PolarTec analytical column and observe instrument pressure and connection guidelines for best results.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article belongs on \u003ca href=\"\/fr-fr\/collections\/hplc-guard-columns\"\u003eHPLC guard columns\u003c\/a\u003e, in \u003ca href=\"\/fr-fr\/collections\/hplc-columns-and-accessories\"\u003eHPLC columns \u0026amp; accessories\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 3 pc(s)\u003c\/li\u003e\n\u003cli\u003eProduct type: UHPLC guard column\u003c\/li\u003e\n\u003cli\u003eStationary phase: PolarTec\u003c\/li\u003e\n\u003cli\u003eParticle size: 1,8 µm\u003c\/li\u003e\n\u003cli\u003eColumn dimensions: 4 × 3 mm\u003c\/li\u003e\n\u003cli\u003eBrand: NUCLEODUR®\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151555408204,"sku":"38L8.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151555440972,"sku":"38L8.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151555473740,"sku":"38L8.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_a2f99b31-3a09-4c7b-b771-de60de91bd3d.jpg?v=1766437238"},{"product_id":"hplc-guard-columns-nucleodur-38l9-38l9","title":"HPLC Guard Columns NUCLEODUR®, PolarTec, 3µm, 4x2mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEODUR® PolarTec are protective pre-columns for high-performance liquid chromatography. Featuring 3 µm particles in a 4 × 2 mm configuration, they are used to intercept particulates and strongly retained matrix components, thereby supporting the lifetime and performance of the downstream analytical column. The PolarTec chemistry is appropriate for polar and related analyte classes where reliable front-end protection is part of routine method design. Each unit pack comprises 3 pc(s) and has a weight of 0,019 kg, suitable for laboratory inventory and periodic guard exchange. These NUCLEODUR® HPLC guards from manufacturer MACHEREY-NAGEL fit standard HPLC workflows in quality control, method development, and research environments across pharmaceutical, food, environmental, and life-science laboratories. By placing a matched PolarTec guard ahead of the main column, laboratories can reduce contamination-related shifts in retention and back-pressure build-up. Select the guard dimensions and particle size to correspond with the analytical NUCLEODUR® PolarTec column and system fittings in use.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article belongs on \u003ca href=\"\/fr-fr\/collections\/hplc-guard-columns\"\u003eHPLC guard columns\u003c\/a\u003e, in \u003ca href=\"\/fr-fr\/collections\/hplc-columns-and-accessories\"\u003eHPLC columns \u0026amp; accessories\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 3 pc(s)\u003c\/li\u003e\n\u003cli\u003eProduct type: HPLC guard column\u003c\/li\u003e\n\u003cli\u003eStationary phase: PolarTec\u003c\/li\u003e\n\u003cli\u003eParticle size: 3 µm\u003c\/li\u003e\n\u003cli\u003eColumn dimensions: 4 × 2 mm\u003c\/li\u003e\n\u003cli\u003eBrand: NUCLEODUR®\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151555506508,"sku":"38L9.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151555539276,"sku":"38L9.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151555572044,"sku":"38L9.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_a68f983a-1018-4721-9f66-572d60561bf0.jpg?v=1766437238"},{"product_id":"hplc-guard-columns-nucleodur-38la-38la","title":"HPLC Guard Columns NUCLEODUR®, PolarTec, 3µm, 4x3mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEODUR®, PolarTec, 3µm, 4x\u003csub\u003e3\u003c\/sub\u003emm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\n\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFor protection of your main HPLC column from contamination, it is recommended to use guard columns. These short columns are placed into a guard column holder. The guard column holder in combination with a guard column inside is installed between the injector and the HPLC column. This installation prevents chemical impurities to reach the main column. Because a contamination could form an irreversible bond with the column packing material (stationary phase) and this can result in shorter column life. If you want to prolong the lifetime of your main column, then these short columns can help you.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFurther attractive products to complete your chromatography laboratory can be found on our \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatography\u003c\/b\u003e\u003c\/a\u003epage!\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- Note --\u003e\n\n\n\u003c!-- Base product name --\u003e\n\n\u003c!-- DetailElements --\u003e\n\n\n\u003c!-- DeliveryText --\u003e\n\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eTechnical Information\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn length\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn inner diameter\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø internal (column)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tyes \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEluent in column\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcetonitrile - Water \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface chemistry\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tOctadecyl phase (C\u003csub\u003e18\u003c\/sub\u003e, ODS) modification, with embedded polar group (PEG) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSeparation principle\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tReversed phase (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle type\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tFully porous particles (FPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSpecific surface according to BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t340 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore volume\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t0.9 ml\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t110 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePressure stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t600 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003epH stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1,0-9,0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eCarbon content\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t17 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eApplication Database (Macherey-Nagel)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\u003ca href=\"https:\/\/chromaappdb.mn-net.com\/hplc?q=761981.30\" target=\"_blank\"\u003eHPLC\u003c\/a\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151555670348,"sku":"38LA.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151555703116,"sku":"38LA.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151555735884,"sku":"38LA.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_c02b502a-18b4-4706-8e0e-2c14573ffbdd.jpg?v=1766437239"},{"product_id":"hplc-guard-columns-nucleodur-38lc-38lc","title":"HPLC Guard Columns NUCLEODUR®, PolarTec, 5µm, 4x2mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEODUR® PolarTec are dedicated guard-column units for high-performance liquid chromatography, specified with a 5 µm particle size and a compact 4 × 2 mm geometry. Supplied as a pack of 3 pc(s), they are intended to sit upstream of matching analytical NUCLEODUR® columns and help shield the main bed from particulates and strongly retained matrix components. The PolarTec chemistry identifies the stationary-phase selectivity of this guard format within the NUCLEODUR® family. Each set is offered from manufacturer MACHEREY-NAGEL for routine HPLC workflows that require a short, dimensionally defined pre-column segment. The listed unit weight is 0,019 kg, reflecting the small cartridge format. These guards are selected when PolarTec selectivity, 5 µm particles and a 4 × 2 mm footprint are required for system configuration and method continuity. Clear labelling of phase, particle size and dimensions supports straightforward pairing with corresponding analytical columns in laboratory HPLC setups.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article belongs on \u003ca href=\"\/fr-fr\/collections\/hplc-guard-columns\"\u003eHPLC guard columns\u003c\/a\u003e, in \u003ca href=\"\/fr-fr\/collections\/hplc-columns-and-accessories\"\u003eHPLC columns \u0026amp; accessories\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 3 pc(s)\u003c\/li\u003e\n\u003cli\u003eProduct type: HPLC guard column\u003c\/li\u003e\n\u003cli\u003eStationary phase: PolarTec\u003c\/li\u003e\n\u003cli\u003eParticle size: 5 µm\u003c\/li\u003e\n\u003cli\u003eDimensions: 4 × 2 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 0,019 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151555866956,"sku":"38LC.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151555899724,"sku":"38LC.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151555932492,"sku":"38LC.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_47b581e3-d3f2-4a24-be0b-d6bca84b5dc1.jpg?v=1766437239"},{"product_id":"hplc-guard-columns-nucleodur-38le-38le","title":"HPLC Guard Columns NUCLEODUR®, PolarTec, 5µm, 4x3mm, 3 unit(s)","description":"\u003cp\u003eHPLC Guard Columns NUCLEODUR®, PolarTec, 5µm, 4x\u003csub\u003e3\u003c\/sub\u003emm\u003c\/p\u003e\n\u003c!-- CARLROTH_PRODUCT_DETAILS_V7 --\u003e\n\u003cdiv class=\"tabbody ProductDetailsComponent\"\u003e\n\u003cdiv class=\"row\" style=\"display:flex; flex-wrap:wrap; width:100%; max-width:100%; margin:10px 0; gap:4px;\"\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 45%; max-width:45%; box-sizing:border-box; margin:10px 0; margin-left:-2.5%; \"\u003e\n\n\n\u003c!--superDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFor protection of your main HPLC column from contamination, it is recommended to use guard columns. These short columns are placed into a guard column holder. The guard column holder in combination with a guard column inside is installed between the injector and the HPLC column. This installation prevents chemical impurities to reach the main column. Because a contamination could form an irreversible bond with the column packing material (stationary phase) and this can result in shorter column life. If you want to prolong the lifetime of your main column, then these short columns can help you.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- OtherDetailElements --\u003e\n\u003cdiv class=\"item\" style=\"word-wrap:break-word; overflow-wrap:anywhere; hyphens:auto; \"\u003e\n\u003cdiv class=\"details-container\"\u003e\n\n\u003cp style=\"font-size:0.95em; line-height:1.5; margin:12px 0; word-wrap:break-word; overflow-wrap:anywhere; white-space:normal; \"\u003eFurther attractive products to complete your chromatography laboratory can be found on our \u003ca href=\"https:\/\/www.carlroth.com\/de\/en\/Chromatographie\" target=\"_blank\"\u003e\u003cb\u003eChromatography\u003c\/b\u003e\u003c\/a\u003epage!\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!-- Note --\u003e\n\n\n\u003c!-- Base product name --\u003e\n\n\u003c!-- DetailElements --\u003e\n\n\n\u003c!-- DeliveryText --\u003e\n\n\u003c!-- printCatalogLink --\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-md-6\" style=\"flex:0 0 55%; max-width:55%; box-sizing:border-box; margin:10px 0; margin-left:-3%; \"\u003e\n\u003cdiv class=\"product-classifications\"\u003e\n\u003cdiv class=\"headline\" style=\"font-weight:bold; font-size:1.2em; margin-bottom:10px;\"\u003eTechnical Information\u003c\/div\u003e\n\u003ctable class=\"table\" style=\"; table-layout:fixed; word-break:normal; overflow-wrap:break-word; width:100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn length\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eColumn inner diameter\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eL x Ø internal (column)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t4 x 3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEndcapped\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tyes \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eEluent in column\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tAcetonitrile - Water \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSurface chemistry\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tOctadecyl phase (C\u003csub\u003e18\u003c\/sub\u003e, ODS) modification, with embedded polar group (PEG) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSeparation principle\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tReversed phase (RP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle type\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\tFully porous particles (FPP) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eParticle size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t5 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eSpecific surface according to BET\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t340 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore volume\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t0.9 ml\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePore size\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t110 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003ePressure stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t600 bar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003epH stability\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t1,0-9,0 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"attrib\" style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-weight:bold; font-size:1em; white-space:normal; overflow-wrap:break-word; hyphens:auto; word-break:normal; \"\u003eCarbon content\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px; vertical-align:top; box-sizing:border-box; font-size:0.92em; white-space:normal; word-break:normal; overflow-wrap:break-word; hyphens:auto; \"\u003e\n\t\t\t\t\t\t\t\t\t17 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Macherey-Nagel","offers":[{"title":"3 pc(s) \/ 1 piece","offer_id":56151556194636,"sku":"38LE.1","price":167.7,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 6+ pieces","offer_id":56151556227404,"sku":"38LE.1","price":159.32,"currency_code":"EUR","in_stock":true},{"title":"3 pc(s) \/ 24+ pieces","offer_id":56151556260172,"sku":"38LE.1","price":150.93,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HPLC-NUCLEODUR-Vorsaeulen-3-1000Wx1000H_190d4dc7-da59-489f-a976-105c22f3111b.jpg?v=1766437240"}],"url":"https:\/\/www.luminixhealth.com\/fr-fr\/collections\/hplc-guard-columns.oembed?page=5","provider":"Luminix Health","version":"1.0","type":"link"}