Research on Fingerprint of Active Component in Fructus Polygoni OrientalisLOU Yi-ceng,SONG Qing,ZHAO Feng,GONG Wen-ting,WU Fan(School of Chemistry and Engineering,Wuhan University of Technology,Wuhan 430070,China)To study on flavonoids of traditional Chinese liquid medicine-Fructus Polygoni Orientalis.HPLC system was used to obtain the fingerprint spectrum of Quercetin of Fructus Polygoni Orientalis from 9 places of China.The chromatography condition was DiamonsilTMC18 column(250 mm×4.6 mm,5 μm),mobile phase Methanol-0.2%H3PO4,and flow speed 1.0 mL/min,detection wavelength 310 nm.The fingerprint spectrum of 9 places of medicinal substances has high similarity.So the method can be used as a reference for the identification and evaluation of Fructus Polygoni Orientalis.fructus polygoni orientalis;quercetin;fingerprint spectrum