Description
EC 4/3 NUCLEODUR 100-5 NH2 is an HPLC guard column for protecting analytical main columns in liquid chromatography workflows. The cartridge has a length of 4 mm and an internal diameter of 3 mm and is specified for main columns with 3 mm, 4 mm or 4,6 mm ID, helping trap particulates and strongly adsorbed species before they enter the analytical bed. Its NUCLEODUR 100-5 NH2 phase designation supports amino-phase separations aligned with corresponding analytical columns. Each unit is supplied as a pack of three guard columns and requires the Column Protection System guard column holder (REF 718966) for mounting. These EC-format precolumns from manufacturer Macherey-Nagel are suited to routine HPLC method protection where a short guard cartridge is required. Matching the guard internal diameter to the main column preserves flow geometry and chromatographic consistency. The compact EC 4/3 format integrates into HPLC systems using 3 mm, 4 mm or 4,6 mm analytical columns when used with the dedicated holder.
This article is part of HPLC columns, in HPLC columns & accessories.
Key features
- Pack size: 3 pc(s)
- Type: HPLC guard column
- Stationary phase: NUCLEODUR 100-5 NH2
- Length: 4 mm
- Internal diameter: 3 mm
- EAN: 4046681057304
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Questions about EC 4/3 NUCLEODUR 100-5 NH2
What is this article?
EC 4/3 NUCLEODUR 100-5 NH2 is the article on this page. Luminix Health distributes Macherey-Nagel for laboratory use. It sits in HPLC columns, inside HPLC columns & accessories, in Chromatography equipment.
An HPLC column is specified by the stationary phase, the particle size, the length and the internal diameter. A C18, 5 µm, 150 × 4.6 mm column is a different article from a C18, 3 µm, 100 × 2.1 mm column. The smaller bore belongs on a lower flow. A column has a direction and a pH range.
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 columns. The catalogue is Chromatography equipment.
Shelves beside this one are HPLC fittings, tubing & inline filters, HPLC guard columns and HPLC accessories.
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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.

