Description
EC 4/3 UNIVERSAL RP is an HPLC guard column (pre-column) for analytical HPLC columns run under reversed-phase (RP) conditions. The unit measures 4 mm in length with a 3 mm internal diameter and is intended for main columns of 3, 4 or 4,6 mm internal diameter. UNIVERSAL RP chemistry supports use across standard reversed-phase separations where a short guard cartridge is placed upstream of the analytical column.
This article is part of HPLC columns, in HPLC columns & accessories.
This variant is packed as 9 pieces per pack, suited to higher-throughput or multi-instrument laboratories. Mounting requires the Column Protection System guard column holder (REF 718966), ordered separately from the cartridges. The EC 4/3 format matches widely used analytical column diameters and integrates into HPLC systems configured for RP work. These guard columns from manufacturer Macherey-Nagel provide a practical EC-series option when a 4 mm × 3 mm ID UNIVERSAL RP pre-column is specified. All dimensional, compatibility and pack details reflect the manufacturer description for reliable selection next to matching main columns and the required holder.
Key features
- Pack size: 9 pc(s)
- Type: HPLC guard column
- Length: 4 mm
- Internal diameter: 3 mm
- Phase: UNIVERSAL RP
- EAN: 4046681074509
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Questions about EC 4/3 UNIVERSAL RP, 9 pcs.
What is this article?
EC 4/3 UNIVERSAL RP, 9 pcs. 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.
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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.
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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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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

