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- Title
Application of the molecularly imprinted solid-phase extraction to the organophosphate residues determination in strawberries.
- Authors
Baldim, Isabela; Oliveira Souza, Marília; Cunha Souza, João; Figueiredo, Eduardo; Martins, Isarita
- 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, for diazinon, disulfoton, parathion and chlorpyrifos, and 0.10 to 2.00 μg g for malathion with r > 0.99. The detection limits (LD) ranged from 0.02 to 0.05 μg g. 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.
- Subjects
FRUIT contamination; PESTICIDES; GAS chromatography; FLAME photometry; PARATHION; CHLORPYRIFOS; MALATHION
- Publication
Analytical & Bioanalytical Chemistry, 2012, Vol 404, Issue 6/7, p1959
- ISSN
1618-2642
- Publication type
Article
- DOI
10.1007/s00216-012-6327-6