Electrochemical detection of sotalol on a magnetographite-epoxy electrode using magnetite nanoparticles

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Federal do Rio de Janeiro (UFRJ)-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorNational Institute of Quality Control in Health (INCQS)-
Autor(es): dc.contributorPontifícia Universidade Católica-
Autor(es): dc.creatorPérez, Ana Isa-
Autor(es): dc.creatorMaterón, Elsa M [UNESP]-
Autor(es): dc.creatorZanoni, Maria Valnice Boldrin [UNESP]-
Autor(es): dc.creatorMoreira, Josino Costa-
Autor(es): dc.creatorFarias, Percio Augusto Mardini-
Autor(es): dc.creatorDE Souza, FErnando Gomes-
Data de aceite: dc.date.accessioned2022-02-22T00:35:04Z-
Data de disponibilização: dc.date.available2022-02-22T00:35:04Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-11-30-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s12043-020-01983-0-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/201983-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/201983-
Descrição: dc.descriptionSotalol hydrochloride (STHCl) is a cardiovascular agent, specifically an antiarrhythmic and beta-blocker, that can be used regularly for an extended period. However, it may have side effects, such as weakness and slow heart rate (bradycardia). Currently, techniques such as capillary zone electrophoresis and high-performance liquid chromatography have been widely used for the determination of sotalol hydrochloride, which increases the cost of the analysis. Hence, the aim of this study is to develop an electrochemical sensor, employing magnetographite-epoxy composite (m-GEC) electrode modified with magnetite nanoparticles (MNPs) functionalised with carboxyl for the detection of sotalol as a faster, cheaper, precise and sensitive alternative method. The MNPs have an average size of 7.5 nm and were characterised by transmission electron microscopy. The electrochemical behaviour of STHCl on the m-GEC electrode modified with MNPs, was investigated by cyclic voltammetry and differential pulse voltammetry (DPV). The supporting electrolyte was 0.1moll-1 of phosphate buffer solution (pH = 7.0). Two oxidation peaks were observed: at a potential of 720 mV and at 920 mV vs. Ag/AgCl (KCl sat). Differential pulse voltammetry revealed linear calibration curves from 0.5 to 500×10-6moll-1, with a limit of detection of 0.015 × 10 - 6mol · l - 1. Finally, the modified electrode showed good sensitivity, selectivity and stability for the determination of sotalol in real samples.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionInstitute of Macromolecules (IMA/UFRJ) Federal University of Rio de Janeiro, Av. Horácio Macedo, 2030-
Descrição: dc.descriptionInstitute of Chemistry State University of São Paulo (UNESP)-
Descrição: dc.descriptionNational Institute of Quality Control in Health (INCQS)-
Descrição: dc.descriptionPontificia Universidad Catolica de Rio Department of Chemistry Pontifícia Universidade Católica-
Descrição: dc.descriptionPrograma de Engenharia da Nanotecnologia COPPE Centro de Tecnologia-Cidade Universitária Universidade Federal do Rio de Janeiro, Av. Horacio Macedo, 2030, bloco I-
Descrição: dc.descriptionInstitute of Chemistry State University of São Paulo (UNESP)-
Descrição: dc.descriptionCAPES: 001-
Idioma: dc.languageen-
Relação: dc.relationPramana - Journal of Physics-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subject01.40.gf-
Palavras-chave: dc.subject82.45.Fk-
Palavras-chave: dc.subject82.45.Wx-
Palavras-chave: dc.subject82.47.Rs-
Palavras-chave: dc.subjectdifferential pulse voltammetry-
Palavras-chave: dc.subjectelectrochemical sensor-
Palavras-chave: dc.subjectmagnetic nanoparticles-
Palavras-chave: dc.subjectSotalol hydrochloride-
Título: dc.titleElectrochemical detection of sotalol on a magnetographite-epoxy electrode using magnetite nanoparticles-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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