Copper nanoparticles and reduced graphene oxide modified a glassy carbon electrode for the determination of glyphosate in water samples

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorSetznagl, Sarah [UNESP]-
Autor(es): dc.creatorCesarino, Ivana [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:24:39Z-
Data de disponibilização: dc.date.available2022-02-22T00:24:39Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2019-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1080/03067319.2020.1720667-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/198477-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/198477-
Descrição: dc.descriptionA novel electrochemical sensor based on a glassy carbon electrode, modified with reduced graphene oxide and copper nanoparticles (GC/rGO-CuNPs), was developed for the determination of glyphosate herbicide (GLY) by differential pulse voltammetry (DPV). The proposed material was synthesised by a chemical method and characterised by scanning electron microscopy (SEM) and cyclic voltammetry (CV). Voltammetric tests showed that the anodic peak at 30 mV, due to the Cu0 to Cu2+ oxidation process, decreased linearly with small additions of GLY; this inhibition was used to quantify the pesticide content in water by DPV. The GC/rGO-CuNPs electrode was evaluated and optimised for the determination of GLY in tap water samples without any pretreatment, achieving a linear response in the range of 0.1 to 1.1 µmol L−1 with a detection limit of 0.19 µmol L−1 (R2 = 0.9996). This study provides a new application for graphene-based sensors and a promising alternative for GLY analysis.-
Descrição: dc.descriptionInstitute of Biosciences Sao Paulo State University (UNESP)-
Descrição: dc.descriptionSchool of Agriculture Sao Paulo State University (UNESP)-
Descrição: dc.descriptionInstitute of Biosciences Sao Paulo State University (UNESP)-
Descrição: dc.descriptionSchool of Agriculture Sao Paulo State University (UNESP)-
Idioma: dc.languageen-
Relação: dc.relationInternational Journal of Environmental Analytical Chemistry-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectcopper nanoparticles-
Palavras-chave: dc.subjectelectrochemical sensor-
Palavras-chave: dc.subjectGlyphosate-
Palavras-chave: dc.subjectreduced graphene oxide-
Título: dc.titleCopper nanoparticles and reduced graphene oxide modified a glassy carbon electrode for the determination of glyphosate in water samples-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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