Calcium polystyrene sulfonate is used as a cardiovascular drug. It reduces potassium in the blood and is used to treat hyperkalemia caused by kidney failure. In this study, a packed column was used for analysis with reference to purity test (4) described in the Japanese Pharmacopoeia, 16th edition.

Chromosorb series and Uniport series siliceous earth carriers were evaluated and compared. This report demonstrates that both supports satisfy the requirements of the test method.