Description
Précolonnes UHPLC NUCLEODUR®, C18 Pyramid, 1,8 µm, 4x3 mm
Pour protéger votre colonne HPLC principale contre la contamination, il est recommandé d'utiliser des précolonnes. Ces colonnes courtes sont placées dans un porte-précolonne. Le porte-précolonne, contenant la précolonne, 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 colonnes courtes peuvent vous aider.
D'autres produits intéressants pour compléter votre laboratoire de chromatographie sont disponibles sur notre page Chromatographie !
| Longueur de colonne | 4 mm |
| Diamètre intérieur de colonne | 3 mm |
| L x Ø intérieur (colonne) | 4 x 3 mm |
| Endcapped | oui |
| Éluant dans la colonne | Acétonitrile - Eau |
| Chimie de surface | Modification octadécyle (C18, ODS), endcapping polaire |
| Principe de séparation | Phase inverse (RP) |
| Type de particule | Particules totalement poreuses (FPP) |
| Taille des particules | 1,8 µm |
| Surface spécifique selon BET | 340 m²/g |
| Volume des pores | 0,9 ml/g |
| Taille des pores | 110 Å |
| Stabilité à la pression | 800 bar |
| Stabilité pH | 1,0-9,0 |
| Teneur en carbone | 14 % |
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Questions about Colonnes de garde UHPLC NUCLEODUR®, C18 Pyramid, 1,8 µm, 4x3 mm, 3 unité(s)
What is this article?
Colonnes de garde UHPLC NUCLEODUR®, C18 Pyramid, 1,8 µm, 4x3 mm, 3 unité(s) is the article on this page. Luminix Health distributes Macherey-Nagel for laboratory use. It sits in HPLC guard columns, inside HPLC columns & accessories, in Chromatographie.
A guard column is a short column of the same phase as the analytical column, placed in front of it to catch particles and compounds that would stick forever. It is meant to be replaced. A guard of a different phase changes the separation. The holder and the cartridge are often separate parts.
An HPLC column is a tube packed, or coated, with a stationary phase. The sample is carried through it by a liquid, and the compounds leave at different times. The phase, the particle size, the length and the internal diameter decide the separation. A guard column is a short sacrificial piece in front of the analytical column. Fittings and tubing have a bore that either preserves the peak or smears it. Compound names follow IUPAC. Data are on PubChem. Method grades often cite the European Pharmacopoeia or USP.
Which category should I open next?
The category is HPLC columns & accessories. The sub-category is HPLC guard columns. The catalogue is Chromatographie.
Shelves beside this one are HPLC columns, HPLC fittings, tubing & inline filters and HPLC accessories.
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.