Abstract: Objective To establish identification and quantitative determination method of Yansheng capules. Methods TLC was employed to identify six crude herbal elements in Yansheng capules and the content of 2,3,5,4'-tetrahy-droxystil bene-2-O- -D-glucosde was determined by HPLC. Results The spot developed on TLC was fairly clear. The average recovery of 2,3,5,4'-tetrahydroxystil bene-2-O- -D-glucosde was 98.3% with RSD1.16%.Conclusion The identification method is repeatable and specific, and the quantitative determination method is sim-ple and accurate, which can be used for the quality control of Yansheng capsules.

Key words: Yansheng capsules, TLC identification, HPLC determination, 2,3,5,4'-tetrahydroxystil bene-2-O- -D-glucosde