Column, LC, Shodex IC I-524A, Anion non-suppressed, 12um, 4.6 x 100mm. Column for anion analysis with a non suppressor method. Functional Group = Quaternary Ammonium. Column is shipped in 2.5mM Phthalic acid aq. Base material is Polyhdroxymethacrylate with a housing made of stainless steel.