复方氯化钠注射液中氯化钾含量测定方法的改进

IMPROVEMENT ON DETERMINATION OF POTASSIUM CHLORIDE IN COMPOUND SODIUM CHLORIDE INJECTION

目的 改进复方氯化钠注射液中氯化钾含量测定的方法。方法 用四苯硼钠容量法替代四苯硼钠重量法。结果 容量法与重量法所测定样品结果基本一致。平均回收率为 99.72 % ,RSD =0 .58% (n =5)。结论 方法简便、快速、准确 。

OBJECTIVE To improve the determination method of potassium chloride in Compound sodium chloride injection.METHODS Sodium tetraphenylborion gravimetric analysis was replaced by sodium tetraphenylborion titrimetric analysis to determine potassium chloride in Compound sodium chloride injection.RESULTS The average recovery of potassium chloride was 99.72%,RSD=0.58%.CONCLUSIONS This method was simple , accurate and rapid, satisfied with the requirements of rapid determination of Compound sodium chloride injection .