Development, validation and application of a methodology based on solid-phase micro extraction followed by gas chromatography coupled to mass spectrometry (SPME/GC–MS) for the determination of pesticide residues in mangoes

Detalhes bibliográficos
Autor(a) principal: Menezes Filho, Adalberto
Data de Publicação: 2010
Outros Autores: Santos, Fábio Neves dos, Pereira, Pedro Afonso de Paula
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/5806
Resumo: Trabalho completo: acesso restrito, p.346–354
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spelling Menezes Filho, AdalbertoSantos, Fábio Neves dosPereira, Pedro Afonso de PaulaMenezes Filho, AdalbertoSantos, Fábio Neves dosPereira, Pedro Afonso de Paula2012-05-09T17:27:28Z20100039-9140http://www.repositorio.ufba.br/ri/handle/ri/5806v. 81, n. 1–2Trabalho completo: acesso restrito, p.346–354A method was developed for the simultaneous analysis of 14 pesticide residues (clofentezine, carbofuran, diazinon, methyl parathion, malathion, fenthion, thiabendazole, imazalil, bifenthrin, permethrin, prochloraz, pyraclostrobin, difenoconazole and azoxystrobin) in mango fruit, based on solid-phase micro extraction (SPME) coupled to gas chromatography–mass spectrometry (GC–MS). Different parameters of the method were evaluated, such as fiber type, extraction mode (direct immersion and headspace), temperature, extraction and desorption times, stirring velocities and ionic strength. The best results were obtained using polyacrylate fiber and direct immersion mode at 50 °C for 30 min, along with stirring at 250 rpm and desorption for 5 min at 280 °C. The method was validated using mango samples spiked with pesticides at concentration levels ranging from 33.3 to 333.3 μg kg−1. The average recoveries (n = 3) for the lowest concentration level ranged from 71.6 to 117.5%, with relative standard deviations between 3.1 and 12.3%, respectively. Detection and quantification limits ranged from 1.0 to 3.3 μg kg−1 and from 3.33 to 33.33 μg kg−1, respectively. The optimized method was then applied to 16 locally purchased mango samples, all of them containing the pesticides bifenthrin and azoxystrobin in concentrations of 18.3–57.4 and 12.7–55.8 μg kg−1, respectively, although these values were below the MRL established by Brazilian legislation. The method proved to be selective, sensitive, and with good precision and recovery rates, presenting LOQ below the MRL admitted by Brazilian legislation.Submitted by Bruna Lessa (lessbruna@gmail.com) on 2012-05-09T17:27:28Z No. of bitstreams: 1 (7)1-s2.0-S0039914009009576-main.pdf: 663064 bytes, checksum: f7014053383e2e88fb7d825c903494e9 (MD5)Made available in DSpace on 2012-05-09T17:27:28Z (GMT). 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dc.title.pt_BR.fl_str_mv Development, validation and application of a methodology based on solid-phase micro extraction followed by gas chromatography coupled to mass spectrometry (SPME/GC–MS) for the determination of pesticide residues in mangoes
dc.title.alternative.pt_BR.fl_str_mv Talanta
title Development, validation and application of a methodology based on solid-phase micro extraction followed by gas chromatography coupled to mass spectrometry (SPME/GC–MS) for the determination of pesticide residues in mangoes
spellingShingle Development, validation and application of a methodology based on solid-phase micro extraction followed by gas chromatography coupled to mass spectrometry (SPME/GC–MS) for the determination of pesticide residues in mangoes
Menezes Filho, Adalberto
Mangoes
Pesticide residues
SPME
GC–MS
title_short Development, validation and application of a methodology based on solid-phase micro extraction followed by gas chromatography coupled to mass spectrometry (SPME/GC–MS) for the determination of pesticide residues in mangoes
title_full Development, validation and application of a methodology based on solid-phase micro extraction followed by gas chromatography coupled to mass spectrometry (SPME/GC–MS) for the determination of pesticide residues in mangoes
title_fullStr Development, validation and application of a methodology based on solid-phase micro extraction followed by gas chromatography coupled to mass spectrometry (SPME/GC–MS) for the determination of pesticide residues in mangoes
title_full_unstemmed Development, validation and application of a methodology based on solid-phase micro extraction followed by gas chromatography coupled to mass spectrometry (SPME/GC–MS) for the determination of pesticide residues in mangoes
title_sort Development, validation and application of a methodology based on solid-phase micro extraction followed by gas chromatography coupled to mass spectrometry (SPME/GC–MS) for the determination of pesticide residues in mangoes
author Menezes Filho, Adalberto
author_facet Menezes Filho, Adalberto
Santos, Fábio Neves dos
Pereira, Pedro Afonso de Paula
author_role author
author2 Santos, Fábio Neves dos
Pereira, Pedro Afonso de Paula
author2_role author
author
dc.contributor.author.fl_str_mv Menezes Filho, Adalberto
Santos, Fábio Neves dos
Pereira, Pedro Afonso de Paula
Menezes Filho, Adalberto
Santos, Fábio Neves dos
Pereira, Pedro Afonso de Paula
dc.subject.por.fl_str_mv Mangoes
Pesticide residues
SPME
GC–MS
topic Mangoes
Pesticide residues
SPME
GC–MS
description Trabalho completo: acesso restrito, p.346–354
publishDate 2010
dc.date.issued.fl_str_mv 2010
dc.date.accessioned.fl_str_mv 2012-05-09T17:27:28Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.repositorio.ufba.br/ri/handle/ri/5806
dc.identifier.issn.none.fl_str_mv 0039-9140
dc.identifier.number.pt_BR.fl_str_mv v. 81, n. 1–2
identifier_str_mv 0039-9140
v. 81, n. 1–2
url http://www.repositorio.ufba.br/ri/handle/ri/5806
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1016/j.talanta.2009.12.008
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
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