Electrochemical reduction as a powerful tool to highlight the possible formation of by-products more toxic than sudan III dye

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.creatorLizier, Thiago M.-
Autor(es): dc.creatorZanoni, Thalita Boldrin-
Autor(es): dc.creatorde Oliveira, Danielle Palma-
Autor(es): dc.creatorZanoni, Maria Valnice B.-
Data de aceite: dc.date.accessioned2025-08-21T19:34:34Z-
Data de disponibilização: dc.date.available2025-08-21T19:34:34Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2012-12-01-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/227111-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/227111-
Descrição: dc.descriptionThe present work describes the electrochemical reduction of the azo dye Sudan III in methanol/0.01 mol l-1 Bu4NBF4 at applied potential of -1.2V, which promotes 98% discoloration of the commercial sample. The reduction products were analyzed by high performance liquid chromatography, after optimized conditions for 20 aromatic amines with carcinogenic potentiality. The harmful compounds such as: aniline, benzidine, o-toluidine, 2,6-dimethylaniline, 4,4'-oxydianiline, 4,4'-metileno-bis-2-methylaniline and 4-aminobiphenyl are formed after azo bond cleavage. The electrochemical reduction is compared with chemical reduction by using sodium thiosulfate. Our findings illustrates that commercial Sudan III under reductive condition can forms a number of products, which some are known active genotoxins. The technique could be used tomimic important redox reactions in human metabolism or environment, highlighting the possible formation of by-products more toxic than the original dyes. © 2012 by ESG.-
Descrição: dc.descriptionInstituto de Química Departamento de Química Analítica Universidade Estadual Paulista - UNESP, Rua Professor Francisco Degni, 55. Quitandinha, 14800-900, Araraquara/SP-
Descrição: dc.descriptionFaculdade de Ciências Farmacêuticas de Ribeirão Preto Departamento de Análises Clínicas Toxicológicas e Bromatológicas. Universidade de São Paulo, Avenida do Café, s/n, 14040-903, Ribeirão Preto/SP-
Descrição: dc.descriptionInstituto de Química Departamento de Química Analítica Universidade Estadual Paulista - UNESP, Rua Professor Francisco Degni, 55. Quitandinha, 14800-900, Araraquara/SP-
Formato: dc.format7784-7796-
Idioma: dc.languageen-
Relação: dc.relationInternational Journal of Electrochemical Science-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAromatic amines-
Palavras-chave: dc.subjectElectrochemical reduction-
Palavras-chave: dc.subjectHPLC-
Palavras-chave: dc.subjectSub products-
Palavras-chave: dc.subjectSudan dyes-
Título: dc.titleElectrochemical reduction as a powerful tool to highlight the possible formation of by-products more toxic than sudan III dye-
Tipo de arquivo: dc.typelivro digital-
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