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Cogent UDC Cholesterol Click to enlarge

TYPE-C Silica™ HPLC Columns Unbonded

Totally Inorganic  |  Will Not Adsorb Water  |  Use for Prep or Analytical

The Cogent Silica-C™ is HPLC grade silica with a silica hydride surface. Made completely free of carbon, this unique stationary phase will adsorb and desorb solvents commonly used in mobile phases very differently from ordinary silica resulting in fantastic benefits to the chromatographer.

Since these columns have virtually no silanols remaining (less than 2%), they do not have a strong association with water and other solvents and will not have the expected hydration shell of other silica based columns. This allows you to use them for normal phase HPLC without having to concern yourself with the moisture content of the solvents.

Excellent choice for normal phase and preparative chromatography because they produce a very unique selectivity are extremely stable for long column life and can be used to retain some polar compounds making it a favorite of many doing LCMS and medicinal chemistry.  



  
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TYPE-C Silica™ HPLC Columns Unbonded

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Catalog# Description PricingAdd!
40000-HG2
 Cogent Replacement Guard Columns Kit with Silica-C 100A 4um. Includes 5 each Hichrom 4.0mm x 10mm Guard Columns in individual cases. 689.284Order
40000-HG3
 Cogent Guard Column Kit with Silica-C 4um. Includes one Universal Holder and 5 each Hichrom 4.0mm x 10mm Guard Columns. 932.57Order
40000-HG4
 Cogent Guard Column Kit with Silica-C 100A 4um. Includes one Universal Holder and 5 each Hichrom 2.0mm x 10mm Guard Columns. 932.57Order
40000-HG5
 Cogent Guard Column Silica-C 100A 4um. Holder required. 2.0mm x 10mm Guard Column. 1 each 172.701Order
40000-HG6
 Cogent Guard Column Silica-C 100A 4um. Holder required. 4.0mm x 10mm Guard Column. 1 each 172.701Order
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