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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/48851
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dc.creatorÉrica Soares Barbosapt_BR
dc.creatorAne Patrícia Caciquept_BR
dc.creatorGevany Paulino de Pinhopt_BR
dc.creatorFlaviano Oliveira Silvériopt_BR
dc.date.accessioned2023-01-11T11:42:01Z-
dc.date.available2023-01-11T11:42:01Z-
dc.date.issued2020-12-
dc.citation.volume31pt_BR
dc.citation.issue12pt_BR
dc.citation.spage2491pt_BR
dc.citation.epage2499pt_BR
dc.identifier.doihttps://doi.org/10.21577/0103-5053.20200124pt_BR
dc.identifier.issn1678-4790pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/48851-
dc.description.resumoThis study developed a methodology for extracting and speciating CrIII and CrVI in sewage sludge by high performance liquid chromatography, inductively coupled plasma tandem mass spectrometry (HPLC-ICP-MS/MS). The optimal procedure was solid-liquid extraction in a water bath with stirring at 50 °C for 16 h and 50 mmol L−1 ethylenediaminetetraacetic acid (EDTA) extraction phase at pH 9.5. In the validated method, the recovery in the fortification experiment was greater than 70% and the relative standard deviation was less than 7%. Speciation analyses showed that all CrVI was spontaneously reduced to CrIII in the sludge sample. The limits of detection and quantification were 0.060 and 0.20 µg L−1, respectively, and the analyses of CrIII by means of ICP-MS/MS were linear from 0.20 to 50 µg L−1. The extraction efficiency of Cr specie in this validated method improved from 4.09 to 53.3% compared to the EPA 1311 method. The methodology was successfully applied to quantify CrIII in a sludge sample with a lower concentration than that established by European legislation 80568/4225/91.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.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_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.otherCromopt_BR
dc.subject.otherExtração (Química)pt_BR
dc.titleOptimization of methodology for determination of inorganic chromium species in sewage sludge samples by HPLC-ICP-MS/MSpt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.scielo.br/j/jbchs/a/DGzgBBX6m5nJd6MxWMT5K5m/?lang=enpt_BR
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