Are you using having difficulty getting high efficiency/high capacity cation exchange separations?
Why not try Epic SCX…
Epic SCX is a strong cation exchanger on a silica support. It’s suitable for the analysis of organic bases or as a trap column for two dimensional HPLC. Epic SCX utilizes a high-density bonding technology that provides superior cation loading, robustness and will provide the best performance of any silica based cation exchanger. Epic SCX is based on bonded aromatic sulfonic acid groups; producing an exchange capacity of 3 meq/gram and the strongest silica based cation exchanger. Epic SCX is available in 10, 5, 3 and 1.8 μm particle sizes for scalability.