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Application of the molecularly imprinted solid-phase extraction to the organophosphate residues determination in strawberries.

Authors
  • Baldim, Isabela Mendes
  • Souza, Marília Cristina de Oliveira
  • Souza, João Carlos Jacinto da Cunha
  • Figueiredo, Eduardo Costa
  • Martins, Isarita
Type
Published Article
Journal
Analytical and Bioanalytical Chemistry
Publisher
Springer-Verlag
Publication Date
Oct 01, 2012
Volume
404
Issue
6-7
Pages
1959–1966
Identifiers
DOI: 10.1007/s00216-012-6327-6
PMID: 22968680
Source
Medline
License
Unknown

Abstract

This study describe an analytical method employing gas chromatography (GC) using flame photometric detection that has been developed for the simultaneous determination of organophosphate pesticides (diazinon, disulfoton, parathion, chlorpyrifos and malathion) in strawberry samples. For this purpose, molecularly imprinted solid-phase extraction was applied as a sample preparation technique. The method was linear in the ranges from 0.10 to 1.00 μg g(-1), for diazinon, disulfoton, parathion and chlorpyrifos, and 0.10 to 2.00 μg g(-1) for malathion with r > 0.99. The detection limits (LD) ranged from 0.02 to 0.05 μg g(-1). Recovery studies yielded average recoveries in the range of 65.25 to 87.70 %. These results showed the potential of this technique for organophosphate residue monitoring in strawberry samples.

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