Fig. 1From: Optimization of the extraction and purification of Corydalis yanhusuo W.T. Wang based on the Q-marker uniform design methodThe UPLC chromatogram of 8 Q-markers, each peak represents protopine, coptisine, palmatine hydrochloride, glaucine, dehydrocorydaline, (R)-(+)-corypalmine, tetrahydropalmatine and (+)-corydaline from 1 to 8, respectively. a The samples chromatogram; b the chromatogram of reference substancesBack to article page