食品科学 ›› 2004, Vol. 25 ›› Issue (7): 151-153.

• 分析检测 • 上一篇    下一篇

高效液相色谱法测定荞头中氟乐灵残留量

 黄灵芝, 戴华, 李拥军, 高晓兰   

  1. 长沙理工大学化学与环境工程系,湖南出入境检验检疫局
  • 出版日期:2004-07-15 发布日期:2011-10-24

Determination of Trifluralin Residues in Garlic by HPLC

 HUANG  Ling-Zhi, DAI  Hua, LI  Yong-Jun, GAO  Xiao-Lan   

  1. 1.Department of Chemistry and Environmental Engineering,Changsha University of Science and Technology;2.Hunan Entry-exit Inspection and Quarantine Bureau
  • Online:2004-07-15 Published:2011-10-24

摘要: 介绍了用高效液相色谱法测定荞头中氟乐灵农药残留量的方法,样品经正己烷均质提取,过弗罗里硅土小柱后,RP-HPLC分离测定,外标法定量,方法的测定下限为0.025mg/kg,回收率>74%,相对标准偏差<8%。

关键词: 荞头, 氟乐灵, 高效液相色谱法

Abstract: A method for determination of trifluralin in garlic by HPLC was developed. The trifluralin residues in sample wasextracted by n-hexane. The extract was cleanup by Florisil Column. A HPLC column of SUPELCO Discovery RP-AmideC16(25cm×4.6mm ID, 5μm)was used with elution (0.5ml/min), MeOH-H2O for detection by HPLC-UV, resulted in a detectionlimit of 0.025mg/kg in garlic, a recovery>74% and a coefficient of variation<8%.

Key words: garlic, trifluralin, HPLC