天然产物研究与开发 ›› 2014, Vol. 26 ›› Issue (1): 94-99.

• 开发研究 • 上一篇    下一篇

基于UPLC-QTOF技术的虎杖、葡萄藤来源白藜芦醇识别方法研究

李洁1,熊兴耀1,曾静1,张莹2*,曾建国1*   

  1. 1 湖南农业大学国家重点实验室培育基地湖南省作物种质创新与资源利用重点实验室,长沙410128;2 湖南省出入境检验检疫局技术中心 长沙 410004
  • 出版日期:2014-01-31 发布日期:2014-12-15

Identification of Resveratrol from Polygonum cuspidatum and Grape Vine Using UPLC-Q/TOF MS

LI Jie1, XIONG Xing-yao1, ZENG Jing1, ZHANG Ying2*, ZENG Jian-guo1*   

  1. 1 Hunan Provincial Key Laboratory of Crop Germplasm Innovation and Utilization Hunan Agricultural University,Changsha 410128,China; 2 Inspection and Quarantine Technology Center of Hunan Entry-Exit Inspection and Quarantine Bureau,Changsha 410004,China
  • Online:2014-01-31 Published:2014-12-15

摘要: 本文采用UPLC-Q/TOF技术建立虎杖、葡萄藤来源白藜芦醇的综合识别方法。建立以Xunion C18 (4.6mm × 150 mm,2.8 μm)色谱柱为分析柱,乙腈-水为流动相,柱温25 ℃,流速0.2 mL/min,检测波长287nm的UPLC-UV-Q/TOF液质联用方法,对8批虎杖来源的白藜芦醇及8批葡萄藤来源的白藜芦醇指纹图谱进行比较研究。获得白藜芦醇含量为5%的虎杖、葡萄藤提取物UPLC-UV指纹图谱,虎杖样品共有峰13个,葡萄藤样品共有峰21个,经质谱分析,推断出11个化学成分信息,其中四个通过对照品对照确认,找到4个具有差异性的标识化合物和3个特征指纹段,并对其识别方法进行了验证。本方法鉴别葡萄藤和虎杖来源白藜芦醇精确度高,稳定性好,可以为白藜芦醇的原料来源鉴别及质量评价提供一定的科学依据。

关键词: 白藜芦醇, 指纹图谱, UPLC, Q/TOF

Abstract: A comprehensive identification method for distinguishing Polygonum cuspidatum and grape vine source resveratrol was established based on UPLC-Q/TOF MS technology.The UPLC analysis of the resveratrol extracts from P.cuspidatum and grape vine were performed on Xunion C18 column (4.6 mm × 150 mm,2.8 μm) using acetonitrile-water as mobile phases with the flow rate of 0.2 mL/min and detected at 287 nm in room temperature.Fingerprints of the resveratrol extracts were established based on eight resveratrol samples of P.cuspidatum source and grape vine source.Results showed that there were 13 common peaks on UPLC-UVfingerprint for P.cuspidatum extract and 21 common peaks for grape vine extract.In addition,11 peaks were identified according to MS information,and 4 of them were further confirmed by reference substance.In the present study,the 4 identified peaks and 3 characteristic fingerprint sections were found to be able to effectively distinguish the resveratrol extract from P.cuspidatum and grape vine source.It was believed that the identification method was of high precession and good stability.It provided some valuable insights into the identification and quality evaluation of resveratrol source.

Key words: Resveratrol, finger print, UPLC, Q/TOF

中图分类号: 

G31