对盐酸普鲁卡因及其制剂采用四苯硼钠作沉淀剂,进行剩余滴定测定其含量,已有报道。为了减少过滤等繁锁手续,本文参考有关文献在微酸性条件下不分离普鲁卡因-四苯硼盐之复合沉淀物,利用松节油阻止沉淀的转化,直接用烃铵盐液回滴剩余之四苯硼钠,来测定盐酸普鲁卡因含量。经试 Prussianhydrochloride and its preparation using sodium tetraphenylborate precipitant, the remaining titration determination of its content, has been reported. In order to reduce the cumbersome procedures such as filtration, this paper refers to the literature does not separate procaine - tetraphenylboron salt complex precipitate in slightly acidic conditions, the use of turpentine to prevent the conversion of precipitation, the direct use of ammonium hydrocarbonate solution drops back Tetraphenyl boron sodium, to determine procaine hydrochloride content. After the test