Determination of eight active components in Xuanmai Ganjie Granules by UPLC-MS/MS Determination of methylophiopogonanones A and B in Radix Ophiopogonis and its extracts by HPLC Comparison on homoisoflavones extracted from Ophiopogon japonicus in Sichuan and Zhejiang and their anti-oxidative activity Simultaneous determination of seven components in Shenmai Injection by HPLC-MS/MS