TSKgel H series GPC columns are optimized for the analysis of organic-soluble polymers and are packed with porous spherical polystyrene divinylbenzene (PS-DVB) particles. This series includes TSKgel HXL, HHR, SuperH, SuperHZ, and SuperMultiporeHZ columns. Each line of columns within this series differs in degree of inertness, solvent compatibility and operating temperature range.