Description
EC 4/3 NUCLEODUR C18 Gravity, 5 µm is an HPLC guard column (precolumn) for protecting analytical reversed-phase columns packed with NUCLEODUR C18 Gravity material. The cartridge has a length of 4 mm and an internal diameter of 3 mm, filled with 5 µm C18 Gravity particles to align selectivity and retention with corresponding main columns. Delivered as a pack of three pieces from manufacturer Macherey-Nagel, these EC guard columns are intended for main columns of 3, 4 or 4,6 mm internal diameter. They must be mounted in the Column Protection System guard column holder (REF 718966), which is ordered separately. By capturing particulates and strongly adsorbed sample constituents ahead of the analytical bed, the guard column supports consistent peak performance and extends the usable life of the primary column in daily HPLC operation. The EC 4/3 geometry fits standard HPLC hardware used with NUCLEODUR C18 Gravity chemistry, making the cartridges a convenient consumable for method development, quality control and research laboratories that rely on this stationary-phase family.
This article is part of HPLC columns, in HPLC columns & accessories.
Key features
- Pack size: 3 pc(s)
- Particle size: 5 µm
- Column length: 4 mm
- Internal diameter: 3 mm
- Stationary phase: NUCLEODUR C18 Gravity
- EAN: 4046681057755
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Questions about EC 4/3 NUCLEODUR C18 Gravity, 5 µm
What is this article?
EC 4/3 NUCLEODUR C18 Gravity, 5 µm 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 Chromatography equipment.
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 Chromatography equipment.
Shelves beside this one are HPLC columns, HPLC fittings, tubing & inline filters and HPLC accessories.
What should I check before I order?
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.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Delivery across Europe, two to five days when in stock. 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.
