Polymeric packed column for non-suppressed cation analysis. Suitable for separating alkylamines, and for the simultaneous analysis of mono- and divalent cations. Fulfills USP-NF L76 requirements. Base material: silica, shipping solvent: 5 mM tartaric acid + 1mM dipicolinic acid, + 24mM boric acid. Guard column YK-G (220-91524-01) and stainless steel coupler 220-91524-97 are recommended.