Figure 3From: Quality evaluation of various commercial specifications of Polygoni Multiflori Radix and its dregs by determination of active compoundsTypical HPLC chromatogram of Polygoni Multiflori Radix decoction pieces from Deqing county, Guangdong province, China. Peak1: 2,3,5,4′-tetrahydroxystilbene-2-O-β-D- glucopyranoside; Peak 2: emodin; Peak 3: physcion.Back to article page