Tosoh, 0007211, TSKgel SP-5PW Guardgel Kit for 7.5 mm ID column

TSKgel SP-5PW Guardgel Kit protects the corresponding 7.5 mm ID SP-5PW strong cation-exchange analytical column during protein and peptide separations. The guard medium uses compatible sulfopropyl ion-exchange chemistry, helping maintain the selectivity of the analytical packing while intercepting particulate material and strongly adsorbed sample impurities. This configuration is designated for use with the Tosoh SP-5PW analytical column 0007161. The guard kit can be useful for protein charge-variant analysis, peptide separation, and other ion-exchange workflows involving complex biological matrices. A protective guard stage may reduce contamination-related peak distortion, backpressure increases, and premature analytical-column replacement. This item is a guardgel kit rather than a full-length analytical HPLC column. Select it according to the matching SP-5PW system hardware and column format.