Description
ROTI®Dex-25 Medium Grav S size exclusion chromatography columns are ready-to-use SEC columns designed for bio-chromatography workflows in the laboratory. Delivered as 50 units per pack, the Grav S gravity-flow format supports size exclusion separations including desalting, buffer exchange and molecular-size fractionation of biomolecules. Size exclusion chromatography (SEC) is widely applied when samples need clean-up or separation by hydrodynamic size before downstream analysis or further processing. These columns from manufacturer Carl ROTH form part of the ROTI®Dex-25 Medium series and address routine SEC needs in analytical and preparative bio-chromatography. The 50-unit pack is practical for laboratories that process multiple samples or maintain a continuous supply of gravity SEC columns. Distinct Grav S labelling helps users select the appropriate medium-grade format for established protocols. The product is intended for professional laboratory use in size exclusion and related bio-chromatography applications that rely on consistent, ready-to-use SEC columns.
This article belongs on Flash, empty & glass chromatography columns, in SPE & sample preparation.
Key features
- Flow rate (0.5 mL water): ≤70 s
- Salt removal (Conductivity of 1 mL eluate from a 0.5 mL 0.8M NaCl application): ≤1000 µS/cm
- Dextran Blue recovery yield (Yield of Dextran blue in 1 mL eluate from a 0.5 mL solution of 1 mg/mL Dextran Blue application): ≥85 %
- Pack size: 50 unit(s)
- Storage temperature: +2 to +25 °C
- Product type: Size exclusion chromatography columns
- Product line: ROTI®Dex-25 Medium Grav S
- Format: Gravity flow, S
- Technique: Size exclusion chromatography (SEC)
- Technical Information Sheet:
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Questions about Size exclusion chromatography columns, ROTI®Dex-25 Medium Grav S, 50 unit(s)
What is this article?
Size exclusion chromatography columns, ROTI®Dex-25 Medium Grav S, 50 unit(s) is the article on this page. Luminix Health distributes Carl Roth 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?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

