Description
Chromatography column 280 ml is a glass laboratory column for chromatographic separations, fitted with NS sockets and an NS cone 29/32 for standard ground-joint connections. It incorporates an NS PTFE stopcock with solid plug and threaded stopcock retainer, plus a suction tube, drip tip and fused frit P0 that supports the stationary-phase bed. Column dimensions are 30 x 400 mm with a bore of 2,5 mm, giving a nominal working volume of 280 ml. This chromatography accessory from manufacturer Witeg is intended for packing, elution and fraction collection in analytical and preparative workflows. The PTFE stopcock enables controlled solvent flow while the drip tip aids clean delivery of eluate. Manufactured in Germany, the column belongs to the range of accessories for chromatography and is supplied as a single piece with a net weight of 0,218 kg. The integrated frit of porosity P0 and robust stopcock assembly support reliable bed retention and leak-resistant operation during routine laboratory separations and purification steps.
This article is part of Flash, empty & glass chromatography columns, in SPE & sample preparation.
Key features
- Pack size: 1 pc
- Column volume: 280 ml
- Dimensions: 30 x 400 mm
- NS joint: 29/32
- Stopcock: NS PTFE with solid plug and threaded retainer
- Frit: fused P0
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Flash, empty & glass chromatography columns
Catalogue
Brand
Questions about Chromatography-columns, ST-socket, ST-c
What is this article?
Chromatography-columns, ST-socket, ST-c is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Flash, empty & glass chromatography columns, inside SPE & sample preparation, in Chromatography equipment.
A flash column or an empty glass column is the tube a separation is packed or run in, under gravity or under air pressure. Diameter and length, and whether it arrives prepacked, are the choices. An empty column still needs a frit and a sorbent.
Solid-phase extraction holds a compound on a sorbent while the rest of the sample is washed away, then releases it in a small volume. The sorbent, the bed mass and the solvents are the method. Silica, ion exchangers and polymer phases do different jobs. A flash column is the same idea scaled toward purification rather than trace cleanup. The molecules are on PubChem, named by IUPAC.
Which category should I open next?
The category is SPE & sample preparation. The sub-category is Flash, empty & glass chromatography columns. The catalogue is Chromatography equipment.
Shelves beside this one are SPE cartridges & columns and Sorbents, silica gel & ion exchangers.
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.

