Liquid chromatography-electrospray ionization tandem mass spectrometry and dynamic multiple reaction monitoring method for determining multiple pesticide residues in tomato

Autor(es)

Andrade, G. C. R. M. ^[1] ; Monteiro, S. H. ^{[1, 2]} ; Francisco, J. G. ^[1] ; Figueiredo, L. A. ^[1] ; Botelho, R. G. ^[1] ; Tornisielo, V. L. ^[1]

Afiliação do(s) autor(es)

^[1] Ctr Energia Nucl Agr, Lab Ecotoxicol, BR-13416903 Piracicaba, SP - Brazil

^[2] Inst Biol, BR-04014002 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Food Chemistry; v. 175, p. 57-65, MAY 15 2015.
• Citações Web of Science: 29

Resumo

A quick and sensitive liquid chromatography-electrospray ionization tandem mass spectrometry method, using dynamic multiple reaction monitoring and a 1.8-mu m particle size analytical column, was developed to determine 57 pesticides in tomato in a 13-min run. QuEChERS (quick, easy, cheap, effective, rugged, and safe) method for samples preparations and validations was carried out in compliance with EU SANCO guidelines. The method was applied to 58 tomato samples. More than 84% of the compounds investigated showed limits of detection equal to or lower than 5 mg kg(-1). A mild (<20%), medium (20-50%), and strong (>50%) matrix effect was observed for 72%, 25%, and 3% of the pesticides studied, respectively. Eighty-one percent of the pesticides showed recoveries ranging between 70% and 120%. Twelve pesticides were detected in 35 samples, all below the maximum residue levels permitted in the Brazilian legislation; 15 samples exceeded the maximum residue levels established by the EU legislation for methamidophos; and 10 exceeded limits for acephate and four for bromuconazole. (C) 2014 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 09/15816-0 - Análise multirresíduos de pesticidas em tomate utilizando LC-MS/MS e avaliação dos efeitos de lavagem na descontaminação.
• Beneficiário: Graziela Cristina Rossi Moura Andrade
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 10/18316-6 - Determinação de resíduos de agrotóxicos em alimentos utilizando LC-MS/MS e GC/MS
• Beneficiário: Valdemar Luiz Tornisielo
• Modalidade de apoio: Auxílio à Pesquisa - Regular