Chromatographia

, Volume 69, Issue 11–12, pp 1347–1351 | Cite as

Determination of Organochlorine Pesticide Residues in Sesame Seeds by GC-ECD

  • Guo-Qing Wang
  • Dong-Fei Zhang
  • Su-Fang Wang
  • Yu-An Sun
  • Xiao-Li Sun
Original
First Online:
Received:
Revised:
Accepted:

Abstract

A method for the multiresidue analysis of 12 organochlorine pesticides in sesame seeds has been developed. The organochlorine residues in the seeds were first extracted by accelerated solvent extraction and the extract subjected to gel permeation chromatography to remove larger molecular weight materials such as proteins and waxes. The purified extract after gel permeation chromatography was analyzed by GC-ECD. Recoveries were higher than 75% for all compounds with relative standard deviations <20%. The limit of detection and limit of quantification were 1.6–3.3 and 5–10 ng g−1, respectively.

Keywords

Gas chromatography-electron capture detector Accelerated solvent extraction Gel permeation chromatography clean-up Sesame seeds Organochlorine pesticide residues 
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Notes

Acknowledgment

This work was supported by National Natural Science Foundation of China (20675073), Program for Science & Technology Innovation Talents in Universities of Henan Province in China (2009HASTIT026), and General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China (2007B533r).

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Copyright information

© Vieweg+Teubner | GWV Fachverlage GmbH 2009

Authors and Affiliations

  • Guo-Qing Wang
    • 1
  • Dong-Fei Zhang
    • 1
  • Su-Fang Wang
    • 2
  • Yu-An Sun
    • 1
  • Xiao-Li Sun
    • 1
  1. 1.Department of Applied ChemistryZhengzhou University of Light IndustryZhengzhouChina
  2. 2.Inspection and Quarantine Technology CentreHenan Entry-Exit Inspection and Quarantine BureauZhengzhouChina

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