Abstract
An extraction method based on matrix solid-phase dispersion was developed to determine carbofuran, pyrimethanil and tetraconazole in banana using gas chromatography–mass spectrometry. The best results were obtained using 2.0 g of banana, 1.0 g of silica as dispersant sorbent and n-hexane:ethyl acetate (1:4, v/v) as eluting solvent. The method was validated using banana samples fortified with pesticides at different concentration levels (0.05–2.0 mg kg−1). Average recoveries (four replicates) ranged from 68 to 111%, with relative standard deviations between 6.6 and 20.5%. Detection and quantification limits for banana ranged from 0.02 to 0.05 and 0.05 to 0.10 mg kg−1, respectively.
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Acknowledgements
The authors thank the CNPq/MCT (process no 502334/2005-3) and FAPITEC-SE/FUNTEC for fellowship and financial support of this study.
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Aquino, A., Navickiene, S. MSPD Procedure for Determination of Carbofuran, Pyrimethanil and Tetraconazole Residues in Banana by GC–MS. Chroma 70, 1265–1269 (2009). https://doi.org/10.1365/s10337-009-1324-4
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DOI: https://doi.org/10.1365/s10337-009-1324-4