联立方程组新解法测定复方氯霉素酊的含量

Determination of Chloramphenicol and Salicylic Acid in Compound Chloramphenicol Tincture by Simultaneous Equstion Spectrophotometry

采用联立方程组新解法 ,测定复方氯雷素酊中氯霉素和水杨酸的含量。测定波长为 2 78nm和 2 97nm,平均回收率 ,氯霉素为 10 1.0 % ,RSD=1.0 ;水杨酸为 10 0 .7 ,RSD=0 .7%。

Simultaneous equation Spectrophotometry was employed to determine the content of chloramphenicol and salicylic acid in compound chloramphenicol tincture.The wavelengths used were 278nm and 297nm.Average recoveries were 101.0% RSD=1.0% and 100.7% RSD=0.7%,respectively.The method was suitable for analysis of pharmaceutical dosage forms in hospital.