天然产物研究与开发 ›› 2015, Vol. 27 ›› Issue (5): 804-808.doi: 10.16333/j.1001-6880.2015.05.010

• 研究简报 • 上一篇    下一篇

山豆根和苦参生物碱类成分UPLC/Q-TOF MSE比较研究

曾祖平1,郭智2,彭冰1,沈胜楠2,夏方博2,刘亚旻2,潘瑞乐2*   

  1. 1 首都医科大学附属北京中医医院 北京市中医研究所,北京 100010;2 中国医学科学院北京协和医学院药用植物研究所,北京 100193
  • 出版日期:2015-05-30 发布日期:2015-06-05

Comparative Analysis of alkaloids in Radix Sophorae Tonkinensis and Radix Sophorae Flavescentis using UPLC/Q-TOF MSE

ZENG Zu-ping1, GUO Zhi2, PENG Bing1, SHEN Sheng-nan2, XIA Fang-bo2, LIU Ya-min2, PAN Rui-le2*   

  1. 1 Beijing Institute of Traditional Chinese Medicine,Beijing Hospital of Traditional Chinese Medicine Affiliated to Capital Medical University,Beijing 100010,China;2 Institute of Medicinal Plant Development,Chinese Academy of Medical Science,Peking Union Medical College,Beijing 100193,China
  • Online:2015-05-30 Published:2015-06-05

摘要: 使用UPLC/Q-TOF MSE对山豆根和苦参的生物碱类成分进行详细的比较研究。色谱柱:Acquity UPLC BEH C18(2.1 mm×150 mm,1.7 μm);流动相:乙腈-5 mmol/L甲酸铵水溶液;流速为0.5 mL/min;检测器:四极杆串联飞行时间质谱(Q-TOF),正离子检测模式。根据离子流色谱图中色谱峰的分子量及其二级质谱碎片离子的裂解规律,结合参考文献进行结构推定;利用主成分分析及正交偏最小二乘法进行聚类分析。结果从山豆根总生物碱中鉴定12个主要成分,从苦参生物碱中鉴定了11个主要成分,其中有10个是相同的结构,但相同成分在两种药材中的含量差异很大;聚类分析表明山豆根和苦参具有显著的差异。本研究表明山豆根和苦参的主要生物碱成分虽然结构相同,但含量差异很大,二者临床疗效差异,可能由于生物碱含量的差异,或生物碱以外的其他成分所引起。

关键词: 山豆根, 苦参, 生物碱, UPLC/Q-TOF MSE

Abstract: The present study aimed to compare the alkaloids of Radix Sophorae Tonkinensis and Radix Sophorae Flavescens using UPLC/Q-TOF MSE.The analysis procedure was carried on an Acquity UPLC BEH C18 column by employing Acetonitrile-5 mmol/L ammonium formate aqueous solution at a flow rate of 0.5 mL/min,and quadrupole tandem time-of-flight mass spectrometry (Q-TOF) in positive ion mode was used as detector.Chemical structures of alkaloids were tentatively identified by the molecular weight of ion chromatographic peak and its characteristic fragmentations combined with related references.In addition,principal component analysis and orthogonal partial least-squares analysis were employed for cluster analysis.The results showed that 12 and 11 alkaloids were identified from Radix SophoraeTonkinensis and Radix Sophorae Flavescens, respectively;10 of which were identical,but the contents of these 10 identical compounds differed greatly between Radix sophorae Tonkinensis and Radix Sophorae Flavescens,and cluster analysis also revealed that Radix Sophorae Tonkinensis was significant different from Radix Sophorae Flavescens.The present study indicated that the category of alkaloids in Radix Sophorae Tonkinensis and Radix Sophorae Flavescens were similar but their contents were of great difference.The different clinic curative effects between Radix Sophorae Tonkinensis and Radix Sophorae Flavescens may be due to the content differences among alkaloid,or other components besides alkaloids.

Key words: Radix Sophorae Tonkinensis, Radix Sophorae Flavescens, alkaloid, UPLC/Q-TOF MSE

中图分类号: 

Q932