These Normal Phase Columns are un-derivatized, analytical grade and are available in both 2.1 and 4.6 mm int.Ø with standard end fittings.

These columns perform normal phase separations easily even though you no longer have to dry your mobile phases for reproducibility. Packed with 4 µm, 100A, TYPE-C Silica™ this stationary phase is made with ultra high purity silica where most of the residual silanols are replaced with silica-hydride. The Cogent Silica-C™ is fast, easy to use and care for, rugged and very stable. The Cogent Silica-C™ can also be packed into semi-prep and prep column size.