Simultaneous analysis on 13 components in Yiqi Fumai Injection (freeze-dried) by UPLC-MS/MS method Determination of schisandrin,schisandrol B,deoxyschizandrin,and schisandrin B in serum containing drug of Compound Wurenchun Capsula Determination of deoxyschizandrin and schisandrin B in GENGNIAN‘AN TABLET by HPLC Simultaneous determination of nine kinds of active components in Hugan Agent by RP-HPLC Determination of deoxyschizandrin, schisandrin b, schisandrin c, and ursolic acid in Baogan Pill by RP-HPLC