[Identification of chemical constituents in Guizhi Fuling Capsules by UPLC-Q-TOF-MS/MS].

To qualitatively characterize the chemical composition of Guizhi Fuling Capsules using UPLC-ESI-Q-TOF-MS/MS. The analysis was performed on Agilent ZORBAX RRHD Eclipes Plus C_(18)(2.1 mm×100 mm, 1.8 μm) column,that was eluted with mobile phase consisting of acetonitrile and 0.1% formic acid in a gradient mode. The flow rate was 0.4 mL·min~(-1), and column temperature was 30 ℃. Tandem mass spectrometry was acquired in both negative and positive ESI modes. These components were further analyzed based on high-resolution mass-to-charge ratios, fragment ion species, reference substances and literature data. In conclusion, a total of 200 compounds were identified, in which 40 were verified with reference substances. The current study laid a foundation for in-depth studies of its mass balance and pharmacodynamics.