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高等学校化学研究 ›› 2013, Vol. 29 ›› Issue (2): 218-222.doi: 10.1007/s40242-013-2388-0

• Articles • 上一篇    下一篇

Determination of Four Pesticides in Soil by Homogeneous Ionic Liquid-based Microextraction Coupled with High-performance Liquid Chromatography

YAN Rui1, SHAO Ming-yuan1, LIANG Zhen-fen2, ZHANG Han-qi1, YU Ai-min1   

  1. 1. College of Chemistry, Jilin University, Changchun 130012, P. R. China;
    2. Academy of Quality Inspection and Research in Heilongjiang Province, Harbin 150050, P. R. China
  • 收稿日期:2012-10-11 修回日期:2012-11-10 出版日期:2013-04-01 发布日期:2013-03-20
  • 通讯作者: YU Ai-min E-mail:analchem@mail.jlu.edu.cn
  • 基金资助:

    Supported by the National Natural Science Foundation of China(No.51209024).

Determination of Four Pesticides in Soil by Homogeneous Ionic Liquid-based Microextraction Coupled with High-performance Liquid Chromatography

YAN Rui1, SHAO Ming-yuan1, LIANG Zhen-fen2, ZHANG Han-qi1, YU Ai-min1   

  1. 1. College of Chemistry, Jilin University, Changchun 130012, P. R. China;
    2. Academy of Quality Inspection and Research in Heilongjiang Province, Harbin 150050, P. R. China
  • Received:2012-10-11 Revised:2012-11-10 Online:2013-04-01 Published:2013-03-20
  • Supported by:

    Supported by the National Natural Science Foundation of China(No.51209024).

摘要:

Homogeneous ionic liquid microextraction was developed for the simultaneceus extraction of dimethomorph, mefenacet, isoprothiolane and oxadiazon from soil. 1-Butyl-3-methylimidazolium tetrafluoroborate was used as extraction solvent, and ammonium hexafluorophosphate was used as ion-pairing agent. High-performance liquid chromatography(HPLC) was employed for separation and determination of the analytes. The calibration curves show good linear relationship(r>0.9988). The recoveries are between 74.2% and 97.9% with relative standard deviations(RSDs) lower than 5.97%. The present method is free of volatile organic solvents, and expenditures of sample, extraction time and solvent are lower, compared with ultrasonic and Soxhlet extraction. There was no obvious diffe- rence in the extraction recoveries of pesticides obtained by the three extraction methods.

关键词: Pesticide, Soil, Ionic liquid-based microextraction, High-performance liquid chromatography(HPLC)

Abstract:

Homogeneous ionic liquid microextraction was developed for the simultaneceus extraction of dimethomorph, mefenacet, isoprothiolane and oxadiazon from soil. 1-Butyl-3-methylimidazolium tetrafluoroborate was used as extraction solvent, and ammonium hexafluorophosphate was used as ion-pairing agent. High-performance liquid chromatography(HPLC) was employed for separation and determination of the analytes. The calibration curves show good linear relationship(r>0.9988). The recoveries are between 74.2% and 97.9% with relative standard deviations(RSDs) lower than 5.97%. The present method is free of volatile organic solvents, and expenditures of sample, extraction time and solvent are lower, compared with ultrasonic and Soxhlet extraction. There was no obvious diffe- rence in the extraction recoveries of pesticides obtained by the three extraction methods.

Key words: Pesticide, Soil, Ionic liquid-based microextraction, High-performance liquid chromatography(HPLC)