Aim To establish a RP-HPLC method for simultaneous determination of calycosin 7-O-β-D-glucoside(Ⅰ),formononetin 7-O-β-D-glucoside(Ⅱ),calycosin(Ⅲ)and formononetin(Ⅳ)in radix astragali.Methods These four isoflavonoids were successfully analyzed on a C18 reversed-phase chromatographic column(4.6 mm×250 mm,5 μm) by gradient elution using water and acetonitrile as the mobile phase at room temperature.Detection wavelength was set at 254 nm.Results The method showed good linearity in the ranges of(Ⅰ) 5.16~660 mg·L...
【更新日期】
2008-06-20
【分类号】
R284
【正文快照】
黄芪(Radix Astragali)是我国一种重要的传统药材,为豆科植物蒙古黄芪Astragalus m em branaceus(F ish.)Bge.var.m ongholicus(Bge.)Hsiao或膜荚黄芪Astragalus m em branaceus(F ish.)Bge.的干燥根[1],具有补气固表、利尿托毒、排脓、敛疮生肌等功效。黄芪药材中主要生物活性