Description
EC 4/3 NUCLEODUR Pi2, 3 µm is an HPLC guard column for protecting analytical main columns in liquid chromatography. The unit is 4 mm long with a 3 mm internal diameter and contains NUCLEODUR Pi2 packing material at a 3 µm particle size. Delivered in packs of three, it is specified for main columns with 3, 4 or 4,6 mm internal diameter and must be used together with the Column Protection System guard column holder (REF 718966). This EC-format precolumn from manufacturer Macherey-Nagel intercepts particulates and strongly retained sample constituents upstream of the analytical bed, supporting consistent chromatographic performance and extended main-column service life. The 3 µm Pi2 phase aligns with corresponding analytical columns, making the guard cartridge suitable for method development, quality-control assays and routine sample clean-up across pharmaceutical, environmental and chemical laboratories. The compact EC 4/3 geometry fits common narrow- and standard-bore HPLC setups, while the three-piece pack enables rapid cartridge exchange whenever system pressure or peak integrity indicates that the protective bed should be replaced.
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: NUCLEODUR Pi2
- Particle size: 3 µm
- Dimensions: 4 mm length × 3 mm ID
- EAN: 4046681057816
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Questions about EC 4/3 NUCLEODUR Pi2, 3 µm
What is this article?
EC 4/3 NUCLEODUR Pi2, 3 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. 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.

