Analysis on chemical constituents of fruit of Chaenomeles speciosa by UPLC-Q-Exactive Orbitrap-MS / 中草药

ABSTRACT

Objective An ultra-high performance liquid chromatography coupled with hybrid quadrupole-orbitrap mass spectrometry (UPLC-Q-Exactive Orbitrap-MS) method was developed to rapidly analyze and identify the chemical constituents from the fruit of Chaenomeles speciosa. Methods The analysis was performed on a Halo C18 column (100 mm × 2.1 mm, 2.7 μm) by gradient elution. The mobile phase consisted of 0.05% formic acid-acetonitrile and 0.05% formic acid-water at a flow rate of 0.3 mL/min. The column temperature was at 40 ℃. The information of the compounds was acquired in positive and negative mode. Results Totally 25 compounds were identified, including five kinds of free amino acids, 11 organic acids, two glycosides, three flavonoids, and four triterpenes. Conclusion The established method is accurate, rapid, and sensitive, which provides a reference for further clarifying the material basis of its efficacy and the selection of quality control indicators.