GUO Zhong-hui,QIN Chun-ping,LIANG Jie,et al.Rapid Identification of Alkaloid Components in Nelumbinis Folium Based on UHPLC-Q-TOF MS Combined with Molecular Network Technology[J].Journal of Instrumental Analysis,2023,42(08):893-906.
GUO Zhong-hui,QIN Chun-ping,LIANG Jie,et al.Rapid Identification of Alkaloid Components in Nelumbinis Folium Based on UHPLC-Q-TOF MS Combined with Molecular Network Technology[J].Journal of Instrumental Analysis,2023,42(08):893-906. DOI: 10.19969/j.fxcsxb.23040607.
Rapid Identification of Alkaloid Components in Nelumbinis Folium Based on UHPLC-Q-TOF MS Combined with Molecular Network Technology
A rapid analytical method of ultrahigh performance liquid chromatography-quadrupole-time-of-flight tandem mass spectrometry(UHPLC-Q-TOF MS) and molecular network integration was established for the identification of alkaloids in ,Nelumbinis Folium, in this paper.The Acquity UPLC HSS T3 column(100 mm × 2.1 mm,1.8 μm) was selected for gradient elution,with water-0.1% formic acid and acetonitrile-0.1% formic acid as the mobile phases at a flow rate of 0.3 mL/min,and mass spectrometry data informations were collected in positive ion mode.MS/MS data of ,Nelumbinis Folium, extract after format conversion were uploaded to the Global Natural Products Social Molecular Network(GNPS) platform for calculation and analysis,and a visual molecular network was built with the help of Cytoscape 3.6.1 software,and three particle clusters of monobenzyl isoquinolines,aporphines and dibenzyl isoquinolines were obtained.According to the similarity of reference substances,chromatographic retention time,characteristic fragment ions,MS/MS cracking rules,literatures and other information,a total of 57 compounds were identified and speculated in ,Nelumbinis Folium,,including 27 monobenzylisoquinolines,2 bisbenzylisoquinolines,25 aporphines and 3 other classes,of which 19 potential new compounds were reported in ,Nelumbinis Folium,,and 30 compounds were found in ,Nelumbinis Folium, for the first time.The method is rapid and accurate,and it could provide a reference for the basic research on medicinal substances of ,Nelumbinis Folium,,as well as the rapid qualitative analysis of chemical components in traditional Chinese medicines.
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