Analysis on chemical constituents in Hedera nepalensis by UPLC/Q-TOF-MS/MS Rapid analysis of compounds in leaves of Chinese seabuckthorn and Tibetan seabuckthorn by UPLC/Q-TOF-MS Activity of anti-epidermal growth factor receptor in Calla Chinensis and UPLC/Q-TOF-MS analysis on its effective part Analysis on sublimation and volatile components of Cibotium barometz using UPLC/Q-TOF-MS