HPLC method was used to determine the contents of four components(salicylic acid,benzoic acid,resorcinol,nitrofurazonum)in the Zujunqing.

• 用反相高效液相色谱法同时分离测定足菌清中水杨酸、苯甲酸、间苯二酚及呋喃西林的含量。