Description
Chromatography column 125 ml is a larger-capacity glass column intended for laboratory chromatographic fractionation and sample clean-up. It incorporates NS sockets with an NS cone 29/32, an NS PTFE stopcock featuring a solid plug and threaded stopcock lock, a suction tube, and a drip tip. A fused frit of porosity P0 is permanently sealed into the base. The column measures 20 × 400 mm, offering a volume of 125 ml and a bore of 2,5 mm to accommodate greater sample loads while maintaining controlled flow. Supplied as a single unit weighing 0,196 kg net, this model from manufacturer Witeg is appropriate for preparative and semi-preparative chromatography applications. The larger NS 29/32 joints facilitate connection to higher-volume reservoirs and collection systems, and the PTFE stopcock ensures chemical resistance together with secure shut-off. Consistent geometry and integrated frit support reproducible packing and elution performance in routine laboratory separations.
This article is part of Flash, empty & glass chromatography columns, in SPE & sample preparation.
Key features
- Pack size: 1 pc
- Column dimensions: 20 × 400 mm
- Volume: 125 ml
- Joint size: NS 29/32
- Stopcock: NS PTFE with solid plug and threaded lock
- Frit: fused P0
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Questions about Chromatograpy columns, ST-socket, ST-co
What is this article?
Chromatograpy columns, ST-socket, ST-co 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.

