Voltammetric determination of organic nitrogen compounds in environmental samples using carbon paste electrode modified with activated carbon

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorTeixeira, Meryene de C.-
Autor(es): dc.creatorFelix, Fabiana S.-
Autor(es): dc.creatorThomasi, Sérgio S.-
Autor(es): dc.creatorMagriotis, Zuy M.-
Autor(es): dc.creatorSilva, Josiane M. da-
Autor(es): dc.creatorOkumura, Leonardo L.-
Autor(es): dc.creatorSaczk, Adelir A.-
Data de aceite: dc.date.accessioned2026-02-09T11:45:30Z-
Data de disponibilização: dc.date.available2026-02-09T11:45:30Z-
Data de envio: dc.date.issued2019-09-05-
Data de envio: dc.date.issued2019-09-05-
Data de envio: dc.date.issued2019-07-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/36660-
Fonte completa do material: dc.identifierhttps://www.sciencedirect.com/science/article/pii/S0026265X18316394-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1146809-
Descrição: dc.descriptionA quick and simple procedure is described to determine pyridine and quinoline using voltammetric methods and carbon paste electrodes modified with activated carbon in the proportion of 50:20:30 w/w graphite:activated carbon:silicon. Studies with cyclic voltammetry indicated that reduction of organic nitrogen molecules is irreversible in ammonium chloride solution acidified to pH 2.5 with Britton-Robinson buffer. Under the best optimum conditions for the differential pulse voltammetry for pyridine and square wave voltammetry for quinoline, the analytical curve was linear from 1.0 × 10−4 to 9.0 × 10−7 mol L−1 for both analytes with limits of detection of approximately 2.0 × 10−7 mol L−1 and limits of quantification of approximately 7.0 × 10−7 mol L−1. The proposed methods were successfully applied to determine pyridine and quinoline in samples of textile effluents and fuel with minimum sample treatment.-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceMicrochemical Journal-
Palavras-chave: dc.subjectOrganic nitrogen compounds - Voltammetric determination-
Palavras-chave: dc.subjectPyridine-
Palavras-chave: dc.subjectQuinoline-
Palavras-chave: dc.subjectSquare-wave voltammetry-
Palavras-chave: dc.subjectTextile effluents-
Palavras-chave: dc.subjectCompostos nitrogenados orgânicos - Determinação voltamétrica-
Palavras-chave: dc.subjectPiridina-
Palavras-chave: dc.subjectQuinolina-
Palavras-chave: dc.subjectVoltametria de onda quadrada-
Palavras-chave: dc.subjectEfluentes têxteis-
Título: dc.titleVoltammetric determination of organic nitrogen compounds in environmental samples using carbon paste electrode modified with activated carbon-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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