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Analytical and Bioanalytical Chemistry

, Volume 389, Issue 6, pp 1773–1789 | Cite as

Analysis of pesticide residues in fruit and vegetables with ethyl acetate extraction using gas and liquid chromatography with tandem mass spectrometric detection

  • Tuija Pihlström
  • Gun Blomkvist
  • Paula Friman
  • Ulla Pagard
  • Bengt-Göran Österdahl
Original Paper

Abstract

A multiresidue method based on extraction with ethyl acetate has been used at the Swedish National Food Administration since 1989 to monitor pesticide residues in fruit and vegetables. The method has been continuously adjusted, resulting in simple and quick analyses of pesticide residues. To recover basic pesticides, the addition of an alkali is necessary. The addition of sodium hydrogen carbonate has been shown to recover all pesticides effectively without any degradation. The liquid chromatography (LC) with tandem mass spectrometry (MS/MS) technique has made it possible to analyse more polar pesticides and to replace many single methods. The latest development in the multiresidue method, comprising the use of gas chromatography (GC) with MS/MS, has further improved the analysis by replacing the conventional GC detectors. The need for cleanup has been reduced or eliminated entirely. Consequently, the method has been simplified in a way that makes it possible to recover all included analytes in many different matrices in one single extraction and to detect them either with GC-MS/MS or with LC-MS/MS.

Keywords

Pesticides Multiresidue analysis GC-MS/MS and LC-MS/MS Fruit and vegetables 

Notes

Acknowledgements

We gratefully acknowledge the co-operation and the diligent and skilful experimental work of Kristina Nordmark, Cathrin Landegren, Aida Pivodic and Jesus Regalado at Analycen Lantmännen, Lidköping, Sweden, and Anna Liedgren at Chemistry Division 1, NFA, Uppsala, Sweden.

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Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • Tuija Pihlström
    • 1
  • Gun Blomkvist
    • 1
  • Paula Friman
    • 2
  • Ulla Pagard
    • 1
  • Bengt-Göran Österdahl
    • 1
  1. 1.Research and Development DepartmentNational Food AdministrationUppsalaSweden
  2. 2.Lantmännen Analycen ABLidköpingSweden

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