The US manufacturer MicroSolv offers high quality HPLC columns under the brand name Cogent. At Analytics-Shop we offer a wide range of Cogent HPLC columns. These columns are a great choices for polar or non-polar compounds and available in guard, analytical and preparative sizes. You can choose between Cogent TYPE-C™ Silica Columns, Cogent RP™ HPLC Columns for reversed phase chromatography, Cogent NP™ HPLC Columns for normal phase chromatography, Cogent HPS™ HPLC columns for specific method development (primarily for reversed phase methods) and Cogent IEX™ HPLC columns for ion exchange HPLC. In the second info box you will find more information on the specific brands.