天然产物研究与开发 ›› 2018, Vol. 30 ›› Issue (11): 1849-1857.doi: 10.16333/j.1001-6880.2018.11.001

• 研究论文 •    下一篇

柱前衍生化HPLC同时测定霍山石斛中13种游离氨基酸含量

郝经文1,2,王荣花2,徐文冬2,石敏珠2,陈乃富1,2*,陈乃东2*   

  1. 1安徽中医药大学,合肥 230031;2皖西学院,六安 237012
  • 出版日期:2018-12-03 发布日期:2018-12-03
  • 基金资助:

    国家自然科学基金(81573536,81274021);中国博士基金(2016T90559);中国博士后研究面上项目(2014M551 791);安徽省自然基金面上项目 (1608 085MH221);安徽省教育厅自然科学研究重点项目(KJ2016A886,KJ2015A361);国家级大学生创新创业项目(006040217 104,006040217105)

Simultaneous Determination of 13 Free Amino Acids in Dendrobium huoshanense by Precolumn-derivatization HPLC Method

HAO Jing-wen1,2, WANG Rong-hua2, XU Wen-dong2, SHI Min-zhu2, CHEN Nai-fu1,2*, CHEN Nai-dong2*   

  1. 1Anhui university of Chinese medic,hefei 230031,China; 2West anhui university,Luan 237012,China
  • Online:2018-12-03 Published:2018-12-03

摘要: 为建立柱前衍生化HPLC同时测定霍山石斛中13种游离氨基酸的方法。采用Waters XBridge C18色谱柱(250 mm×4.6 mm,5 μm);流动相为0.1 mol/L醋酸钠缓冲液-乙腈∶水(4∶1),梯度洗脱;流速1.0 mL/min,柱温35 ℃;检测波长254 nm。在该色谱条件下霍山石斛中13种游离氨基酸分离较好,平均加样回收率为92.7%~104.3%,RSD<2.5%。该方法简便、准确、重现性好,适用于霍山石斛中13种游离氨基酸的同时测定。

关键词: 霍山石斛, 柱前衍生化, 游离氨基酸, 高效液相色谱法

Abstract: A pre-column derivatization-HPLC method was developed for the simultaneous determination of the 13 kinds of free amino acids in Dendrobium huoshanense. A Waters XBridge C18 column(250 mm×4.6 mm,5 μm)was used with 0.1 mol/L sodium acetate buffer (A) and acetonitrile-water(4∶1)(B) as mobile phases in gradient elution mode.The flow rate was 1.0 mL/min and the column temperature was 35 ℃.The DAD detection wavelength was set at 254 nm.The results showed that,adopted the established HPLC method,the 13 kinds of free amino acids were separated well and the average recoveries were between 92.7%-104.3% with RSD<2.5%.Our study suggested that the developed HPLC method was simple,accurate and reproductive.It is suitable for the simultaneous determination of the 13 kinds of free amino acids in D.huoshanense.

Key words: Dendrobium huoshanense, pre-column derivatization, free amino acids, HPLC

中图分类号: 

R284.1 Q946