Thermo Fisher, 060560, Dionex™ IonPac™ CS17 IC Columns

Dionex™ IonPac™ CS17 IC Columns is designed for guard-column protection for cation-exchange chromatography with the matching IonPac™ CS17 analytical phase. This product is a 4 mm × 50 mm guard column rather than the 4 mm × 250 mm analytical configuration. It uses the CS17 carboxylate-functionalized, low-hydrophobicity polymer packing with 7 µm particles and a maximum pressure of 4000 psi (275 bar). Installed upstream of the analytical separation bed, the shorter guard intercepts contaminants and strongly retained sample components before they reach the principal column. The phase supports acidic-gradient separation of hydrophobic and polyvalent amines, including alkanolamines and methylamines, in complex matrices such as process waters, chemical solutions and food samples. Its compatibility with acidic eluents and HPLC organic solvents allows integration into CS17 methods that require solvent modification or cleanup. The 50 mm length adds a protective segment without replacing the 250 mm analytical column's resolving length. The product is sold as one guard column; the analytical column must be selected separately. This format belongs to ion chromatography, not a reversed-phase HPLC guard or a generic prefilter.