Optimization of methodology for determination of inorganic chromium species in sewage sludge samples by HPLC-ICP-MS/MS

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dc.creatorÉrica Soares Barbosa
dc.creatorAne Patrícia Cacique
dc.creatorGevany Paulino de Pinho
dc.creatorFlaviano Oliveira Silvério
dc.date.accessioned2023-01-11T11:42:01Z
dc.date.accessioned2025-09-09T00:31:20Z
dc.date.available2023-01-11T11:42:01Z
dc.date.issued2020-12
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.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.description.sponsorshipOutra Agência
dc.identifier.doihttps://doi.org/10.21577/0103-5053.20200124
dc.identifier.issn1678-4790
dc.identifier.urihttps://hdl.handle.net/1843/48851
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofJournal of the Brazilian Chemical Society
dc.rightsAcesso Aberto
dc.subjectLodo de esgoto
dc.subjectCromo
dc.subjectExtração (Química)
dc.titleOptimization of methodology for determination of inorganic chromium species in sewage sludge samples by HPLC-ICP-MS/MS
dc.typeArtigo de periódico
local.citation.epage2499
local.citation.issue12
local.citation.spage2491
local.citation.volume31
local.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.
local.publisher.countryBrasil
local.publisher.departmentICA - INSTITUTO DE CIÊNCIAS AGRÁRIAS
local.publisher.initialsUFMG
local.url.externahttps://www.scielo.br/j/jbchs/a/DGzgBBX6m5nJd6MxWMT5K5m/?lang=en

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