Simultaneous extraction of pesticides and polycyclic aromatic hydrocarbons in brazilian cachaça using a modified QuEChERS method followed by gas chromatography coupled to tandem Mass spectrometry quantification

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dc.creatorMariana Cristina da Silva
dc.creatorMauro Lucio Goncalves de Oliveira
dc.creatorRodinei Augusti
dc.creatorAdriana Ferreira Faria
dc.date.accessioned2022-10-26T18:23:59Z
dc.date.accessioned2025-09-09T01:12:57Z
dc.date.available2022-10-26T18:23:59Z
dc.date.issued2018
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.identifier.doihttps://doi.org/10.1021/acs.jafc.8b04682
dc.identifier.issn0021-8561
dc.identifier.urihttps://hdl.handle.net/1843/46644
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofJournal of Agricultural and Food Chemistry
dc.rightsAcesso Restrito
dc.subjectPesticidas
dc.subjectHidrocarbonetos policíclicos aromáticos
dc.subjectCachaça
dc.subjectCromatografia de gás
dc.subjectEspectrometria de massa
dc.subjectExtração por solventes
dc.subjectAlimentos
dc.subjectContaminação
dc.subject.otherQuEChERS
dc.subject.otherPesticides
dc.subject.otherPAHs
dc.subject.otherBrazilian cachaça
dc.subject.otherGC−MS/MS
dc.subject.otherPolycyclic aromatic hydrocarbons
dc.subject.otherGas chromatography coupled to tandem mass spectrometry
dc.titleSimultaneous extraction of pesticides and polycyclic aromatic hydrocarbons in brazilian cachaça using a modified QuEChERS method followed by gas chromatography coupled to tandem Mass spectrometry quantification
dc.title.alternativeSimultaneous extraction of pesticides and polycyclic aromatic hydrocarbons in brazilian cachaça using a modified quechers method followed by gc-ms/ms quantification
dc.typeArtigo de periódico
local.citation.epage405
local.citation.spage399
local.citation.volume67
local.description.resumoA modified QuEChERS method was optimized for simultaneous extraction of 93 pesticides and 6 polycyclic aromatic hydrocarbons (PAHs) in cachaça. The procedure employed 20 mL of sample, 10 mL of dichloromethane, 1 g of NaCl, and 6 g of MgSO4. The methods were validated in accordance with pesticide tolerances set by the National Health Surveillance Agency of Brazil and government guidelines of Brazil and the European Union. The linearity of all curves was adequate, with calculated tr higher than the critical value, at the 95% confidence level. For pesticides, recoveries ranged between 86.7 and 118.2%, relative standard deviation (RSD) ≤ 20%, at least at two concentration levels, and limit of detection (LOD) and limit of quantitation (LOQ) were 2.5 and 10.0 μg L–1, respectively. For PAHs, recoveries ranged between 84.8 and 111.5%, RSD was between 6.2 and 27.3%, LOD and LOQ were 0.25 and 1.0 μg L–1, respectively. The combined standard uncertainty was lower than 50% of the relative expanded uncertainty value at concentration levels of greater relevance in both methods. Analyses of five commercial samples detected the presence of 9 pesticides (10.0–128.0 μg L–1) and 6 PAHs (2.0–4.0 μg L–1), indicating the need for a specific legislation for Brazilian cachaça.
local.identifier.orcidhttps://orcid.org/0000-0002-9448-9518
local.identifier.orcidhttps://orcid.org/0000-0002-7320-4907
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE QUÍMICA
local.publisher.initialsUFMG
local.url.externahttps://pubs.acs.org/doi/10.1021/acs.jafc.8b04682

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