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HPLC method was used to determine the contents of four components(salicylic acid,benzoic acid,resorcinol,nitrofurazonum)in the Zujunqing. 用反相高效液相色譜法同時分離測定足菌清中水楊酸、苯甲酸、間苯二酚及呋喃西林的含量。