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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/48779
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dc.creatorMariana Ribeiro Maiapt_BR
dc.creatorAna Luiza Pereira Arcanjopt_BR
dc.creatorGevany Paulino de Pinhopt_BR
dc.creatorFlaviano Oliveira Silvériopt_BR
dc.date.accessioned2023-01-09T12:17:10Z-
dc.date.available2023-01-09T12:17:10Z-
dc.date.issued2017-01-
dc.citation.volume28pt_BR
dc.citation.issue1pt_BR
dc.citation.spage179pt_BR
dc.citation.epage186pt_BR
dc.identifier.doihttps://doi.org/10.5935/0103-5053.20160161pt_BR
dc.identifier.issn1678-4790pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/48779-
dc.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.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Geraispt_BR
dc.description.sponsorshipOutra Agênciapt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICA - INSTITUTO DE CIÊNCIAS AGRÁRIASpt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofJournal of the Brazilian Chemical Societypt_BR
dc.rightsAcesso Abertopt_BR
dc.subject.otherLodo de esgotopt_BR
dc.subject.otherBifenis policlorinadospt_BR
dc.subject.otherCromatografia a gáspt_BR
dc.subject.otherEspectrometria de massapt_BR
dc.subject.otherExtração (Química)pt_BR
dc.titleSolid-liquid extraction with low temperature purification coupled with gas chromatography and mass spectrometry for determination of polychlorinated biphenyls in sewage sludgept_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.scielo.br/j/jbchs/a/bhgK4JCd4cDXzx5gcnSdCms/abstract/?lang=enpt_BR
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