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Analysis of alkaloids in Coptis chinensis Franch by high performance capillary electrophoresis-electrospray ionization time of flight mass Spectrometry

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Analysis of alkaloids in Coptis chinensis Franch by high performance capillary electrophoresis-electrospray ionization time of flight mass Spectrometry.pdf (747.9Kb)
Date
2007
Author
Chen Jun-Hui
陈军辉
Zhao Heng-Qiang
赵恒强
Li Wen-Hong
李文龙
Wang Xiao-Ru
王小如
Lee, Frank Sen-Chun
黎先春
Yang Huang-Hao
杨黄浩
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  • 化学化工-已发表论文 [14469]
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Abstract
A new method for the analysis of alkaloids in Coptis chinensis Franch was established by high performance capillary electrophoresis-electrospray ionization time of flight mass spectrometry (HPCE-ESI-TOF/MS). The real samples were separated by an uncoated capillary. 50 mmol/L ammonium acetate containing 0.5% methanol (pH=7.2) was used as the running buffer, and separation voltage was 25 kV. A coaxial sheath flow interface was used as the CE-MS interface, and a 50% methanol-49.5% water- 0.5% acetic acid mixture was used as the sheath liquid with a flow rate of 4 mu L/min. The lens voltages in a positive ion mode with a collision induced dissociation (CID) voltage of 100 V were used for ESI-TOF/MS analysis. Seven alkaloids in Coptis chinensis Franch methanol extracts were separated and identified by CE-DAD and CE-ESI-TOF/MS. The coupling of HPCE separation with accurate mass measurement capability of ESI-TOF/MS provides an attractive tool for the identification of alkaloid compounds in Coptis chinensis Franch.
Citation
ACTA CHIMICA SINICA,2007,65(23):2743-2749
URI
http://dx.doi.org/doi:CNKI:SUN:HXXB.0.2007-23-016
https://dspace.xmu.edu.cn/handle/2288/9183

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