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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/48797
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dc.creatorRosimeire Resende dos Santospt_BR
dc.creatorLívia Dias Vidotti Lealpt_BR
dc.creatorZenilda de Lourdes Cardealpt_BR
dc.creatorHelvécio Costa Menezespt_BR
dc.date.accessioned2023-01-09T18:36:05Z-
dc.date.available2023-01-09T18:36:05Z-
dc.date.issued2019-
dc.citation.volume1584pt_BR
dc.citation.spage64pt_BR
dc.citation.epage71pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.chroma.2018.11.046pt_BR
dc.identifier.issn0021-9673pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/48797-
dc.description.resumoPolycyclic aromatic hydrocarbons (PAHs) are food contaminants; besides, their oxygenated (oxy-PAHs) and nitrated (nitro-PAHs) derivatives have also been detected in some foods. This is worrying because these derivatives may be more toxic than PAHs. This study presents a new method for the determination of PAHs and their oxygenated and nitrated derivatives in coffee brew. The analytes were extracted by cold fiber solid phase microextraction (CF-SPME) with analysis by gas chromatography/mass spectrometry. The developed method presented good precision with intra-assay and inter-assay, ranged from 4.5 to 16.4%, and from 9.8 to 19.8%, respectively. Recovery ranged from 82.1 to 96.3% and linearity showed good adjustment presenting determination coefficients (R²) from 0.980 to 0.999. The limits of quantification ranged from 0.025 to 0.224 μg L−¹. The proposed method is simple, versatile, allows simultaneous extraction of PAHs, nitrated and oxygenated derivatives and was successfully applied to the analysis of commercial coffee samples. Benzo(k)fluoranthene, benzo(b)fluoranthene, pyrene, acenaphthylene and acenaphthene are the most abundant PAHs found in samples. In addition, 5,12-naphthacenequinone was the most abundant oxy-PAH and 1-nitropyrene was the most abundant nitro-PAH.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.description.sponsorshipOutra Agênciapt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE QUÍMICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofJournal of Chromatography Apt_BR
dc.rightsAcesso Restritopt_BR
dc.subjectCold fiber-SPMEpt_BR
dc.subjectPolycyclic aromatic hydrocarbonspt_BR
dc.subjectGC/MSpt_BR
dc.subjectCoffee brewpt_BR
dc.subjectOxygenated polycyclic aromatic hydrocarbonspt_BR
dc.subjectNitrated polycyclic aromatic hydrocarbonspt_BR
dc.subject.otherHidrocarbonetos policíclicos aromáticospt_BR
dc.subject.otherCafépt_BR
dc.subject.otherCromatografia de gáspt_BR
dc.subject.otherEspectrometria de massapt_BR
dc.subject.otherQuímica analíticapt_BR
dc.titleDetermination of polycyclic aromatic hydrocarbons and their nitrated and oxygenated derivatives in coffee brews using an efficient cold fiber-solid phase microextraction and gas chromatography mass spectrometry methodpt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.sciencedirect.com/science/article/pii/S0021967318314468?via%3Dihubpt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-1383-6299pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-5759-612Xpt_BR
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