Abstract: Qualitative identification of paulownia leaf and sjianyesame oil in compound Tongye burn oil was carried out by thin layer chromatography with medicinal tung leaf,ursolic acid and sesamin as reference materials.Silica gel G thin layer plate was used.The developer was cyclohexane ether butyl acetate glacial acetic acid (20∶5∶4∶0.2).The results showed that all spots in the solution chromatography of the test sample were separated clearly,ursolic acid R_f=0.45,sesamin R_f==0.23,Spots of the same color are displayed on the corresponding positions of the reference medicine and the reference substance.This method is simple and reproducible,and can be used for the quality control of compound Tongye burn oil.

Key words: compound Tongye burn oil, tung leaf, ursolic acid, sesamin, thin layer chromatography, qualitative identification