Metal-organic framework-modified carbon paste electrode for determining lead in aqueous solutions

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorFederal University of Rio Grande do Norte-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorBatista, Luiz Carlos Domingos-
Autor(es): dc.creatorSantos, Thiago Izidoro Silva-
Autor(es): dc.creatorda Silva Santos, Victor Hugo Florêncio-
Autor(es): dc.creatorde Oliveira, João Bosco Lucena-
Autor(es): dc.creatorde Moura Santos, Elaine Cristina Martins-
Autor(es): dc.creatorda Silva, Djalma Ribeiro-
Autor(es): dc.creatorMartínez-Huitle, Carlos A. [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:43:52Z-
Data de disponibilização: dc.date.available2022-02-22T00:43:52Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2019-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.20964/2020.10.42-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/205260-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/205260-
Descrição: dc.descriptionIn this work, a novel carbon paste electrode was modified with metal-organic framework (MOF) 235 for detecting lead ions in aqueous solutions using anodic redissolution voltammetry as analytical technique. Experimental parameters such as, amount of MOF-235, type of supporting electrolyte, potential and time deposition were evaluated to optimize the detection approach. The Pb2+ detection response of this MOF-modified electrode allowed to achieve a detection limit of about 18 μg L-1 with a correlation coefficient (R) of about 0.9962, extending in a linear concentration range from 50 to 300 μg L-1. Drinking water samples (as-received or spiked with well-known lead concentration) were analyzed to determine the concentration of lead ions. Data were also confirmed by Atomic Absorption Spectroscopy (AAS). Furthermore, the electrochemical determination when compared with the AAS, has shown that the electroanalytical approach represents a fast and quite reliable alternative for monitoring heavy metals.-
Descrição: dc.descriptionInstitute of Chemistry Federal University of Rio Grande do Norte-
Descrição: dc.descriptionUnesp National Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM) Institute of Chemistry, P.O. Box 355-
Descrição: dc.descriptionUnesp National Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM) Institute of Chemistry, P.O. Box 355-
Formato: dc.format10081-10092-
Idioma: dc.languageen-
Relação: dc.relationInternational Journal of Electrochemical Science-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectcarbon paste electrode-
Palavras-chave: dc.subjectlead-
Palavras-chave: dc.subjectmodified electrode-
Palavras-chave: dc.subjectMOF-235-
Título: dc.titleMetal-organic framework-modified carbon paste electrode for determining lead in aqueous solutions-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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