Chromolith DIOL Guard Cartridges, 4.6 x 5 mm, 3 Pieces - 153175

Chromolith® SpeedROD DIOL Guard Cartridges, 4.6 mm I.D. x 5 mm Length, 3 Per Pack

Product Number: 153175

Analytics and Sample Preparation > Analytical Chromatography > Analytical HPLC > Chromolith® HPLC Columns > Chromolith® Monolithic HPLC Columns > Chromolith® Guard Cartridges and Cartridge Ki t> Chromolith® DIOL 5-4.6 guard cartridges (3 pieces)

Chromolith® Diol columns are more versatile than bare silica columns, and often offer improved reproducibility. The bonded phase’s hydroxyl groups provide good selectivity without excessive retention. This is due to weaker hydrogen bonding with diol groups than with silanols on a bare silica surface. In aqueous phases, the diol phase can effectively shield the silica surface from interacting with proteins. Diol columns are commonly used for the separation of steroids and sterols under normal-phase conditions. Chromolith® Diol columns are suitable for the separation of alcohols, amino acids, carotinoids, oils, glycols, preservatives, proteins, sugars, sulfonamides, and water-soluble vitamins.

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