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复方盐酸普鲁卡因注射液是盐酸普鲁卡因和对氨基苯甲酸为主要成份的注射剂,用重氮化法必须分离后进行测定。作者选用pH7.50和pH2.90缓冲液控制盐酸普鲁卡因的水解,拟定出不经分离直接测定复方注射液中盐酸普鲁卡因和对氨基苯甲酸含量的方法。
Compound procaine hydrochloride injection is procaine hydrochloride and para-aminobenzoic acid as the main ingredient of injection, with diazotization method must be measured after separation. The authors selected pH7.50 and pH2.90 buffer to control the hydrolysis of procaine hydrochloride, to develop a direct method without separation of compound injection of procaine hydrochloride and para-aminobenzoic acid content of the method.