Pesticide residues in cashew apple, guava, kaki and peach: GC-μECD, GC-FPD and LC-MS/MS multiresidue method validation, analysis and cumulative acute risk assessment
| Autor: | Eloisa Dutra Caldas, Andreia Nunes Oliveira Jardim, Fernanda Caroline Silva Goes, Denise Carvalho Mello, Elcio Ferreira Frota Junior |
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| Rok vydání: | 2014 |
| Předmět: |
Organophosphorus
Ethyl acetate Food Contamination Risk Assessment Cashew apple Gas Chromatography-Mass Spectrometry Analytical Chemistry chemistry.chemical_compound LC–MS/MS Tandem Mass Spectrometry Lc ms ms Pyrethroids Guava Nuts Anacardium Omethoate Cumulative acute exposure assessment Gas chromatography Pyrethroid Acute risk Chromatography Psidium Pesticide residue Pesticide Residues Kaki General Medicine Pesticide chemistry Fruit Malus Food Additives Prunus Brazil Food Science Chromatography Liquid |
| Zdroj: | Food chemistry. 164 |
| ISSN: | 1873-7072 |
| Popis: | A multiresidue method for the determination of 46 pesticides in fruits was validated. Samples were extracted with acidified ethyl acetate, MgSO4 and CH3COONa and cleaned up by dispersive SPE with PSA. The compounds were analysed by GC–FPD, GC–μECD or LC–MS/MS, with LOQs from 1 to 8μg/kg. The method was used to analyse 238 kaki, cashew apple, guava, and peach fruit and pulp samples, which were also analysed for dithiocarbamates (DTCs) using a spectrophotometric method. Over 70% of the samples were positive, with DTC present in 46.5%, λ-cyhalothrin in 37.1%, and omethoate in 21.8% of the positive samples. GC–MS/MS confirmed the identities of the compounds detected by GC. None of the pesticides found in kaki, cashew apple and guava was authorised for these crops in Brazil. The risk assessment has shown that the cumulative acute intake of organophosphorus or pyrethroid compounds from the consumption of these fruits is unlikely to pose a health risk to consumers. |
| Databáze: | OpenAIRE |
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