Solid-liquid extraction with low temperature purification coupled with gas chromatography and mass spectrometry for determination of polychlorinated biphenyls in sewage sludge

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dc.creatorMariana Ribeiro Maia
dc.creatorAna Luiza Pereira Arcanjo
dc.creatorGevany Paulino de Pinho
dc.creatorFlaviano Oliveira Silvério
dc.date.accessioned2023-01-09T12:17:10Z
dc.date.accessioned2025-09-09T00:57:21Z
dc.date.available2023-01-09T12:17:10Z
dc.date.issued2017-01
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.sponsorshipOutra Agência
dc.identifier.doihttps://doi.org/10.5935/0103-5053.20160161
dc.identifier.issn1678-4790
dc.identifier.urihttps://hdl.handle.net/1843/48779
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofJournal of the Brazilian Chemical Society
dc.rightsAcesso Aberto
dc.subjectLodo de esgoto
dc.subjectBifenis policlorinados
dc.subjectCromatografia a gás
dc.subjectEspectrometria de massa
dc.subjectExtração (Química)
dc.titleSolid-liquid extraction with low temperature purification coupled with gas chromatography and mass spectrometry for determination of polychlorinated biphenyls in sewage sludge
dc.typeArtigo de periódico
local.citation.epage186
local.citation.issue1
local.citation.spage179
local.citation.volume28
local.description.resumoSewage sludge is the residue produced by the wastewater treatment plants, which can be used as soil conditioner in agriculture. However, the current legislation recommends monitoring chemical contaminants such as polychlorinated biphenyls (PCBs). In this study, solid-liquid extraction with low temperature purification (SLE-LTP) was optimized and validated for monitoring six PCBs. The analyses were performed by gas chromatography and mass spectrometry. Sulfur interference was removed by 1.5 g of copper metal. The extraction was carried out using 6.50 mL isopropanol, 1.50 mL ethyl acetate, 0.1 g NaCl, 0.8 mL water and 15 min into ultrasound. Extraction percentages were between 82 and 94% and relative standard deviation ≤ 16% for low concentrations. Detection and quantification limits were 3.3 and 10 µg kg-1, respectively. The method was applied to sludge samples collected monthly in the wastewater treatment plant and PCB 52 was detected in six samples.
local.publisher.countryBrasil
local.publisher.departmentICA - INSTITUTO DE CIÊNCIAS AGRÁRIAS
local.publisher.initialsUFMG
local.url.externahttps://www.scielo.br/j/jbchs/a/bhgK4JCd4cDXzx5gcnSdCms/abstract/?lang=en

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