HE Yu-qi, LU Yan-liu, QIU Min, et al. Qualitatively Analysis of Gypenosides with UPLC-ESI-Orbitrap-MS[J]. Chinese journal of experimental traditional medical formulae, 2017, 23(19): 77-81.
HE Yu-qi, LU Yan-liu, QIU Min, et al. Qualitatively Analysis of Gypenosides with UPLC-ESI-Orbitrap-MS[J]. Chinese journal of experimental traditional medical formulae, 2017, 23(19): 77-81. DOI: 10.13422/j.cnki.syfjx.2017190077.
Objective: To analyze the main chemical components ingypenosidesextracts with UPLC-ESI-Orbitrap-MS technology. Method: Thermo Q Exactivequadrupolerod-electrostatic field orbitrap high resolution mass spectrometry-MS system was used and the chromatography separation was performed on Hypersil Gold C18 column (2.1 mm×150 mm
1.9 μm) with 0.1% formic acid solution (A)-acetonitrile (B) as the mobile phase for gradient elution (0-2 min
5%B; 2-15 min
5%-95%B; 15-17 min
95%B). The flow rate was set at 0.3 mL·min-1 and the column temperature was 40℃.Electrospray ionization (ESI) source was applied and operated in Full Scan/Targeted-dd MS2/negative ion mode. Result: Eight gypenosides were identified based on the reference compounds
high resolution mass number and comparison between experimental data and published data. These compounds included gypenoside Ⅲ
Ⅳ
Ⅷ
Ⅻ
Rg3
Rb2
Rc
and Rf. Conclusion: The established method would be used to qualitatively and rapidly compare the quality of extract from Gynostemma pentaphyllum on sale.