Rapid analysis on chemical constituents in Yinyanghuo Zonghuangtong capsule by UPLC/Q-TOF-MS/MS

To analyze and identify the chemical constituents from Yinyanghuo Zonghuangtong capsule by using UPLC/Q-TOF-MS/MS. Chromatographic separation was carried out on an Agilent SB-C₁₈ column (2.1 mm×100 mm, 1.8 μm) at the temperature of 30 ℃. The mobile phase was 0.1% formic acid and acetonitrile by gradient elution, with a flow rate at 0.30 mL•min⁻¹, and the injection volume of 2 μL. The MS spectrum was acquired in both negative and positive ion...