Description
HPLC Guard Columns NUCLEOSHELL® RP 18 with a particle size of 2,7 µm and dimensions of 4 × 2 mm serve as protective pre-columns in high-performance liquid chromatography. Installed before the analytical column, they help capture particulates and strongly retained sample components, reducing fouling of the main stationary-phase bed. The RP 18 reversed-phase chemistry matches widely used C18-type NUCLEOSHELL® analytical columns, supporting continuity of hydrophobic retention behaviour between guard and main column. Supplied in packs of 3 pc(s), the format is convenient for preventive maintenance cycles, spare stocking, and laboratories running several instruments in parallel. Each unit weighs 0,023 kg and fits compactly into compatible guard-column hardware. These NUCLEOSHELL® guard columns from manufacturer MACHEREY-NAGEL combine the stated particle size with RP 18 selectivity for methods that rely on octadecyl bonded phases. Using a matched RP 18 guard configuration is a standard approach to safeguarding analytical column performance in routine HPLC workflows.
This article is part of HPLC guard columns, in HPLC columns & accessories.
Key features
- Pack size: 3 pc(s)
- Product type: HPLC guard column
- Brand: NUCLEOSHELL®
- Phase: RP 18
- Particle size: 2,7 µm
- Column dimensions: 4 × 2 mm
- UNSPSC: 41115700
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Questions about HPLC Guard Columns NUCLEOSHELL® RP 18, 2,7 µm, 4 × 2 mm
What is this article?
HPLC Guard Columns NUCLEOSHELL® RP 18, 2,7 µm, 4 × 2 mm 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 Chromatographie.
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 Chromatographie.
Shelves beside this one are HPLC columns, HPLC fittings, tubing & inline filters and HPLC accessories.
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