Description
EC 4/3 NUCLEOSIL 50-5 is an HPLC guard column intended to shield analytical main columns during liquid chromatographic separations. Each cartridge is 4 mm long with a 3 mm internal diameter and contains NUCLEOSIL 50-5 packing, aligning with NUCLEOSIL 50-series methods that use this silica-based phase. The product is delivered as a pack of three guard columns for convenient replacement in the laboratory. It is specified for main columns with 3, 4 or 4,6 mm internal diameter and must be mounted in the Column Protection System guard column holder (REF 718966), which is not included. Placing a matched EC 4/3 guard column upstream of the analytical column helps intercept particulate matter and strongly adsorbing sample constituents, reducing contamination of the main bed and supporting more consistent chromatographic performance over repeated injections. This NUCLEOSIL 50-5 EC 4/3 format from manufacturer Macherey-Nagel offers a compact protective stage for HPLC systems already standardised on NUCLEOSIL 50-5 chemistry. The short geometry limits added dead volume while still providing a practical, exchangeable barrier for routine analytical work.
This article is part of HPLC columns, in HPLC columns & accessories.
Key features
- Pack size: 3 pc(s)
- Product type: HPLC guard column
- Stationary phase: NUCLEOSIL 50-5
- Length: 4 mm
- Internal diameter: 3 mm
- EAN: 4046681081231
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about EC 4/3 NUCLEOSIL 50-5
What is this article?
EC 4/3 NUCLEOSIL 50-5 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?
We deliver across the EU, usually within 2 to 5 working days. More is on Delivery across the EU. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.
