Column, LC, Shodex IC SI-95G, Guard Column, Rapid analysis, Suppressed, 9um, 4.6 x 10mm. Guard column designed for the rapid analysis of oxyhalides and general inorganic ions with a suppressor. Functional Group = Quaternary Ammonium. Column is shipped in 3.6mM Na2CO3 Aq. Base material is Polyvinyl Alcohol with a housing made of peek.