Stability-indicating UV-spectrophotometric assay of chloroquine phosphate in pharmaceuticals

摘要

ABSTRACT Chloroquine phosphate (CQP) is a 4-aminoquinolein antimalarial drug. One spectrophotometric method which is cost-effective and rapid was described for the determination of CQP in bulk drug and dosage forms. This method is based on the measurement of the absorbance of CQP solution in 0.1 M HCl at 342 nm. Beer's law was obeyed over the concentration range, 2.5-25 .