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中国药学(英文版) ›› 2015, Vol. 24 ›› Issue (10): 635-646.DOI: 10.5246/jcps.2015.10.081

• 【研究论文】 •    下一篇

高效液相色谱和Q-Exactive四极杆-静电场轨道阱高分辨质谱仪联用鉴定半枝莲的化学成分

李茹1, 宋玮1, 乔雪1, 刘佳2, 梁鸿1, 叶敏1*   

  1. 1. 北京大学药学院 天然药物及仿生药物国家重点实验室, 北京 100191
    2. 北京大学基础医学院 系统生物学研究所, 北京 100191
  • 收稿日期:2015-05-13 修回日期:2015-06-28 出版日期:2015-10-21 发布日期:2015-07-05
  • 通讯作者: Tel.: 86-10-82802024, E-mail: yemin@bjmu.edu.cn
  • 基金资助:

    National Natural Science Foundation of China (Grant No. 81222054 and 21305005), the Program for New Century Excellent Talents in University from Chinese Ministry of Education (Grant No. NCET-11-0019), and National Science and Technology Mega Project for Primary Drug Innovation of China (Grant No. 2014ZX09304-307).

Chemical profiling of Scutellaria barbata by ultra high performance liquid chromatography coupled with hybrid quadrupole-orbitrap mass spectrometry 

Ru Li1, Wei Song1, Xue Qiao1, Jia Liu2, Hong Liang1, Min Ye1*   

  1. 1. State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
    2. Institute of Systems Biomedicine, Beijing Key Laboratory of Tumor Systems Biology, School of Basic Medical Sciences, Peking University Health Science Center, Peking University, Beijing 100191, China
  • Received:2015-05-13 Revised:2015-06-28 Online:2015-10-21 Published:2015-07-05
  • Contact: Tel.: 86-10-82802024, E-mail: yemin@bjmu.edu.cn
  • Supported by:

    National Natural Science Foundation of China (Grant No. 81222054 and 21305005), the Program for New Century Excellent Talents in University from Chinese Ministry of Education (Grant No. NCET-11-0019), and National Science and Technology Mega Project for Primary Drug Innovation of China (Grant No. 2014ZX09304-307).

摘要:

利用高效液相色谱和Q-Exactive四极杆-静电场轨道阱高分辨质谱仪联用的方法对中药半枝莲的化学成分进行分析, 药材粉末经70%甲醇提取后采用Agilent Eclipse Plus C18 column (1.8 μm, 150 mm×2.1 mm)色谱柱分离, 流动相为甲乙腈–0.1%甲酸水溶液, 采用梯度洗脱, 流速为0.25 mL/min。质谱采用负离子监测模式、采用全扫描及自动触发二级质谱扫描的功能, 通过高分辨数据共鉴定了56个成分, 包括黄酮苷元类20, 黄酮氧苷类20, 黄酮碳苷类2, 苯乙醇苷类成分4, 以及10个小分子的苯酚类成分, 其中8个黄酮类成分和2个苯乙醇苷类成分经对照品比对确证。本研究表, Q-Exactive四级杆-静电场轨道阱高分辨质谱可以高效地鉴定复杂植物提取物的未知化学成分。

关键词: 半枝莲, 化学成分分析, Q-Exactive四极杆-静电场轨道阱高分辨质谱, 黄酮

Abstract:

An ultrahigh performanceliquid chromatographycoupled with hybrid quadrupole-orbitrap mass spectrometry (UHPLC-quadrupole-orbitrap MS) method was developed to systematically analyze chemical constituents of Scutellaria barbata D. Don. The 70% methanol extract was separated on an Agilent Eclipse Plus C18 column (1.8 μm, 150 mm×2.1 mm), and eluted with a gradient of methanolacetonitrilewater containing 0.1% formic acid at a flow rate of 0.25 mL/min. Constituents were identified by HRMS in the negative ion mode using both full scan and two-stage threshold-triggered mass modes. A total of 56 compounds, including 20 free flavonoids, 20 flavonoid O-glycosides, 2 flavonoid C-glycosides, 4 phenylethanoid glycosides, and 10 phenolic compoundswere identified by analyzing their high resolution mass spectral data.Among them, 8 flavonoids and 2 phenylethanoid glycosides were unambiguously identified by comparing with reference standards. This study demonstrates that hybrid quadrupole-orbitrap mass spectrometry is a powerful tool in structural identification of unknown compounds in complicated herbal extracts.

Key words: Scutellaria barbata, Chemical analysis, Quadrupole-orbitrap mass spectrometry, Flavonoids

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