食品科学 ›› 2012, Vol. 33 ›› Issue (20): 196-200.

• 分析检测 • 上一篇    下一篇

LC-MS/MS方法同时检测超声提取迷迭香(Rosmarnus officinalis L.)叶片中的四种主要成分

曹 姗,祖元刚*,张 琳   

  1. 东北林业大学  林业生物制剂教育部工程研究中心,森林植物生态学教育部重点实验室
  • 收稿日期:2011-09-01 修回日期:2012-09-22 出版日期:2012-10-25 发布日期:2012-11-09
  • 通讯作者: 祖元刚 E-mail:zuyuangang@163.com
  • 基金资助:

    国家科技支撑计划项目;中央高校基本科研业务费专项资金资助

Simultaneous Determination of Four Major Volatile Components in Rosemary (Rosmarnus officinalis L.) Leaves by LC-MS/MS with Ultrasonic-Assisted Extraction

  • Received:2011-09-01 Revised:2012-09-22 Online:2012-10-25 Published:2012-11-09

摘要: 目的:建立一种同时测定迷迭香中迷迭香酸、鼠尾草酸、绿原酸和咖啡酸含量的LC-MS/MS分析方法,并优化超声辅助提取这4种物质的方法。方法:液相条件:采用Agilent Eclipse XDB-C18色谱柱(150mm×4.6mm,5µm),流动相为乙腈和水(含0.1%甲酸)进行梯度洗脱。质谱条件:ESI离子源,MRM负离子扫描方式,检测在不同提取溶剂、料液比、超声时间、pH值及酸种类的超声波辅助提取条件下4种物质的含量。结果:咖啡酸、绿原酸、迷迭香酸和鼠尾草酸在质量浓度范围分别为0.0005~0.5、0.0005~0.5、0.002~0.2、0.01~1mg/mL的条件下线性关系良好,并符合方法学考察要求;在最优提取条件下迷迭香酸含量为4.07mg/g,鼠尾草酸含量为14.50mg/g,绿原酸含量为8.49mg/g,咖啡酸含量为2.92mg/g。结论:该分析方法可快速灵敏地实现同时检测,并优化了这4种化合物的最佳提取条件。

关键词: 迷迭香, LC-MS/MS, 超声波辅助提取, 迷迭香酸, 鼠尾草酸, 绿原酸, 咖啡酸

Abstract: Objective:To establish an LC-MS/MS assay for the simultaneous determination of rosmarinic acid, carnosic acid, chlorogenic acid and caffeic acid in rosemary leaves and to optimize conditions for the ultrasonic extraction of these components. Methods: The chromatographic separation was performed on an Agilent Eclipse XDB-C18 column (150 mm × 4.6 mm, 5 µm) using a mobile phase consisting of acetonitrile and 0.1% formic acid in water by gradient elution. The analyztes were monitored by ESI-MS/MS in the negative ion MRM mode. The effects of solvent type, solid/liquid ratio, ultrasonic treatment time, pH and acid type on the extraction of rosmarinic acid, carnosic acid, chlorogenic acid and caffeic acid were investigated. Results: Caffeic acid, chlorogenic acid, rosmarinic acid and carnosic acid showed a good linear relationship over the concentration ranges of 0.0005–0.5, 0.0005–0.5, 0.002–0.2 and 0.01–1 mg/mL, respectively. Under optimal extraction conditions, the contents of rosmarinic acid, carnosic acid, caffeic acid and chlorogenic acid were respectively, 4.07, 14.50, 2.92 mg/g  and 8.49 mg/g as determined by the LC-MS/MS assay. Conclusion: This array allows rapid, sensitive and simultaneous determination of osmarinic acid, carnosic acid, chlorogenic acid and caffeic acid in rosemary leaves. Their optimal extraction conditions have been established.

Key words: rosemary, LC-MS/MS, ultrasonic-assisted extraction, rosmarinic acid, carnosic acid, chlorogenic acid, caffeic acid

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