Description
Chromatography column 125 ml is a glass laboratory column intended for chromatographic separations, supplied with NS socket, NS cone and NS stopcock. It is equipped with a solid plug of NS 29/32, threaded stopcock securing, suction tube and drip tip, and a fused-in frit of porosity P0. The column measures 20 × 400 mm, has a 2,5 mm bore and provides a 125 ml working volume. Offered as a single piece from manufacturer Witeg, the column functions as chromatography accessory glassware for packing stationary phases and performing gravity or low-pressure separations. Ground-joint interfaces permit reliable assembly with matching laboratory glass components. The fused-in P0 frit supports the packing bed while allowing eluent to pass. Threaded securing of the stopcock enhances operational safety during packing and elution. Net weight is 0,208 kg. This longer-format column suits analytical and preparative chromatography applications in research, teaching and quality-control laboratories requiring defined joint size, frit porosity and extended bed length.
This article is part of Flash, empty & glass chromatography columns, in SPE & sample preparation.
Key features
- Pack size: 1 pc
- Capacity: 125 ml
- Column dimensions: 20 × 400 mm
- Ground joint: NS 29/32
- Stopcock: NS stopcock with solid plug and threaded securing
- Frit: fused-in frit P0
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Questions about Chromatography-columns, 20 x 400 mm, 125
What is this article?
Chromatography-columns, 20 x 400 mm, 125 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.

