RESUMEN
OBJECTIVE:To establish a method for the analysis of chemical compositions in Jinqiancao granule. METHODS:HPLC-ESI-Q-TOF-MS was adopted. The chromatographic conditions:the column was Inertsil ODS-4 with mobile phase of 0.1%formic acid- methanol (gradient elution) at a flow rate of 0.8 ml/min,column temperature was 30 ℃,and the injection volume was 15 μl. MS conditions:ion source was ESI(negative ion mode),endplate offset voltage was -500 V,capillary electrophore-sis was 3500 V,carrier gas was helium gas,atomization and drying gas was high purity nitrogen gas at a flow rate of 6 L/min and a pressure of 1.0 bar,drying air temperature was 180℃. Scanning range was 50-1500 m/z. ChemBioDraw Ultra13.0 and Bruk-er data analysis software 4.0 were used to analyze the chemical composition molecular formula. RESULTS:A total of 27 kinds of chemical components were identified in Jinqiancao granule,involving sucrose,uridine,gallic acid,new chlorogenic acid,(-)-epi-gallocatechin,protocatechuic acid,chlorogenic acid,schaftoside,caffeic acid,schaftoside,vanillc acid,ferulic acid,hyperin,ros-marinic acid,rutin,isoquercitrin,astragalin,quercetin-3-rhamnoside,myricetin,4-hydroxybenzoic acid,quercetin,naringenin, luteolin,kaempferol,isorhmnetin,apigenin and emodin. CONCLUSIONS:Caffeic acid,rosmarinic acid,vanillic acid,(-)-epigal-locatechin,uridine and emodin are firstly found and reported in the chemical compositions in Jinqiancao granule.