Sigma-Aldrich’s High Performance Liquid Chromatography (HPLC) and LC-MS line includes reversed phase (C18, C8, RP-Amide, phenyl, cyano, etc.), normal phase, ion exchange and size exclusion columns as well a standards, reagents, vials, syringes, and other chromatography accessories. Featured products include Supelco Ascentis™ and Discovery™ columns, Fluka ion-pair and derivatization reagents and CHROMASOLV® high-purity solvents.