KNAUER offers columns for the separation of anions and cations.
Hamilton PRP-X100 ion chromatography columns are an easy way to separate anions. You can use these columns with any existing HPLC or ion chromatograph to easily determine anions in almost any sample matrix.
Hamilton PRP-X110 is a polymeric anion exchange column packing for the separation of inorganic and organic anions. Hamilton PRP-X200 is a polymeric cation exchange column to analyze inorganic and organic cations using conductivity or UV detection.