Assay of evodin, evodiamine and rutaecarpine in Fructus Evodiae by QAMS Assay of evodin, evodiamine and rutaecarpine in Fructus Evodiae by QAMS Simultaneous analysis of bioactive compounds in Yuhuanglian processing pieces and their preparations by HPLC-ESI-MS Fingerprint study of Wuji Pill by UPLC-MS/MS Simultaneous analysis of bioactive compounds in Yuhuanglian processing pieces and their preparations by HPLC-ESI-MS