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建立了“咳宁”冲剂的薄层定性方法，并利用ＴＬＣＳ法测定了其中麻黄生物碱的含量，雷氏盐沉淀──酸碱滴定法测定了其中百部总碱的含量。
A thin layer qualitative method was established for the “Ke Ning” granules, and the content of alkaloids in the ephedrine was determined by TLCS method. The content of total alkaloids was determined by acid-base titration.