Objective: To establish a method of quantitative analysis single-marker( QAMS) for the contents determination of five saponins in Xuesaitong Capsules. Methods: Ginsenoside Rg1 was used as the internal standard,the relative correction factor( RCF) of Notoginsenoside R1,Gginsenoside Re,Ginsenoside Rb1 and Ginsenoside Rd were calculated and evaluated. The external standard method and QAMS were used to determine the contents of 5 saponins. Also,the rationality,feasibility and repeatability of the QAMS method we...