Description
Guard column holder B is a chromatography accessory designed for separate use of 5 × 3 mm Valco-type HPLC guard columns. It holds short precolumn cartridges of this compact geometry so that protective packing can be exchanged without removing the analytical column from the system. The holder matches the 5 mm length and 3 mm internal-diameter Valco guard format and provides a reliable mechanical and fluidic connection for routine liquid-chromatography setups. Delivered as one piece, it suits laboratories that employ small-format guard cartridges to trap particulates and strongly retained sample components. This holder from manufacturer Macherey-Nagel supports efficient column protection strategies in HPLC methods that specify 5 × 3 mm Valco-type guards. Its dedicated B configuration keeps installation straightforward during method development, system qualification, or daily maintenance. Choose this hardware when a reusable mount for the smaller Valco guard size is needed alongside analytical HPLC columns.
Key features
- Pack size: 1 pc
- Product type: HPLC guard column holder
- Holder type: B
- Compatible guard format: 5 × 3 mm Valco-type
- EAN: 4046681083051
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about Guard column holder B
What is this article?
Guard column holder B 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.
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.