Analysis of Chemical Constituents in Shixiao Powder
Objective To analyze the chemical constituents of Shixiao Powder.Methods Ultra-high-performance liquid chromatography-triple quadrupole time-of-flight mass spectrometry(UPLC-Q-TOF-MS)was adopted.The chromatographic column was Cortecs UPLC T3 column(100 mm×2.1 mm,1.6 μm),the mobile phase was 0.1%formic acid aqueous solution-acetonitrile(gradient elution),the flow rate was 0.3 mL/min,the column temperature was 30℃,the injection volume was 2 μL,and the electro-spray ionization(ESI)was adopted with the positive and negative ion modes.Results A total of 53 chemical constituents were obtained,including 23 in Typhae Pollen,14 in Faeces Trogopteror,and 16 were common in the two Chinese medicinal materials.The characteristic constituents of Typhae Pollen and the common constituents of the two Chinese medicinal materials were mainly flavonoids,while the characteristic constituents of Faeces Trogopteror were mainly terpenoids.Conclusion This method is easy and repeatable,which can provide a basis for the further research of the effect-material basis of Shixiao Powder.
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