Determination 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 method

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dc.creatorRosimeire Resende dos Santos
dc.creatorLívia Dias Vidotti Leal
dc.creatorZenilda de Lourdes Cardeal
dc.creatorHelvécio Costa Menezes
dc.date.accessioned2023-01-09T18:36:05Z
dc.date.accessioned2025-09-08T23:29:30Z
dc.date.available2023-01-09T18:36:05Z
dc.date.issued2019
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipOutra Agência
dc.identifier.doihttps://doi.org/10.1016/j.chroma.2018.11.046
dc.identifier.issn0021-9673
dc.identifier.urihttps://hdl.handle.net/1843/48797
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofJournal of Chromatography A
dc.rightsAcesso Restrito
dc.subjectHidrocarbonetos policíclicos aromáticos
dc.subjectCafé
dc.subjectCromatografia de gás
dc.subjectEspectrometria de massa
dc.subjectQuímica analítica
dc.subject.otherCold fiber-SPME
dc.subject.otherPolycyclic aromatic hydrocarbons
dc.subject.otherGC/MS
dc.subject.otherCoffee brew
dc.subject.otherOxygenated polycyclic aromatic hydrocarbons
dc.subject.otherNitrated polycyclic aromatic hydrocarbons
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 method
dc.typeArtigo de periódico
local.citation.epage71
local.citation.spage64
local.citation.volume1584
local.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.
local.identifier.orcidhttps://orcid.org/0000-0003-1383-6299
local.identifier.orcidhttps://orcid.org/0000-0002-5759-612X
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE QUÍMICA
local.publisher.initialsUFMG
local.url.externahttps://www.sciencedirect.com/science/article/pii/S0021967318314468?via%3Dihub

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