OBJECTIVE To develop a HPLC method for determination of genistin and tectorigenin in Flos Puerariae.METHODS The samples were separated on a Agilent ZORBAX Eclipse XDB-C18column(4.6 mm×150 mm,5μm)with mobile phase consisting of acetonitrile-1‰ phosphoric acid solution(gradient elute)at the flow rate of 0.8 ml·min-1.Column temperature was set at 30℃ and wavelength was at 270 nm.RESULTS The linear ranges of the two components were 46.7~747.2μg·ml-1(r=0.999 9)and 54.1~864.8μg·ml-1(r=0.999 9),respectively.The av...