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Metadados | Descrição | Idioma |
---|---|---|
Autor(es): dc.contributor | Universidade Estadual Paulista (Unesp) | - |
Autor(es): dc.contributor | Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM) | - |
Autor(es): dc.contributor | Federal University of Mato Grosso do Sul | - |
Autor(es): dc.contributor | Federal University of Rio de Janeiro | - |
Autor(es): dc.contributor | National Institute of Science & Technology of Bioanalytics (INCTBio) | - |
Autor(es): dc.contributor | Universidade Federal de Uberlândia (UFU) | - |
Autor(es): dc.creator | Wong, Ademar [UNESP] | - |
Autor(es): dc.creator | A. Ferreira, Priscila | - |
Autor(es): dc.creator | Santos, Anderson M. [UNESP] | - |
Autor(es): dc.creator | Cincotto, Fernando H. | - |
Autor(es): dc.creator | Silva, Rodrigo A.B. | - |
Autor(es): dc.creator | Sotomayor, Maria D.P.T. [UNESP] | - |
Data de aceite: dc.date.accessioned | 2022-02-22T00:31:44Z | - |
Data de disponibilização: dc.date.available | 2022-02-22T00:31:44Z | - |
Data de envio: dc.date.issued | 2020-12-11 | - |
Data de envio: dc.date.issued | 2020-12-11 | - |
Data de envio: dc.date.issued | 2020-10-31 | - |
Fonte completa do material: dc.identifier | http://dx.doi.org/10.1016/j.microc.2020.105292 | - |
Fonte completa do material: dc.identifier | http://hdl.handle.net/11449/200799 | - |
Fonte: dc.identifier.uri | http://educapes.capes.gov.br/handle/11449/200799 | - |
Descrição: dc.description | A method using glassy carbon electrode containing biochar, nanodiamonds and chitosan has been developed for simultaneous voltammetric quantification of cadmium and lead. The developed material was characterised by microscopy (transmission electron and scanning electron) and square-wave anodic stripping voltammetry. Using optimum conditions, the sensor exhibited excellent response for the simultaneous quantification of metal ions. High electrochemical sensitivities of 0.42 and 5.3 μA μmol−1 cm−2 was found for Cd and Pb quantification, respectively. Well separated peaks at −0.64 and −0.42 V vs. Ag/AgCl(KClsat) were obtained, as well as low limits of detection of 0.11 and 0.056 µmol L−1 and linear ranges of 1.0 to 75.0 and 0.25 to 6.0 μmol L−1 for cadmium and lead quantification, respectively. The modified GCE exhibited good repeatability, stability for 30 days and reproducibility (with a relative standard deviation between 4.6% and 4.9% for n = 5). The developed sensor presents high robustness, requiring no step cleaning of the electrode surface to remove any remaining bonded metals. An ecologically friendly, low cost and high yield electrode was therefore developed for the simultaneous determination of two toxic metals in real environmental samples applying square-wave anodic stripping voltammetry. | - |
Descrição: dc.description | Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) | - |
Descrição: dc.description | Department of Analytical Chemistry Institute of Chemistry State University of São Paulo (UNESP) | - |
Descrição: dc.description | National Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM) | - |
Descrição: dc.description | Institute of Chemistry Federal University of Mato Grosso do Sul | - |
Descrição: dc.description | Institute of Chemistry Federal University of Rio de Janeiro | - |
Descrição: dc.description | National Institute of Science & Technology of Bioanalytics (INCTBio) | - |
Descrição: dc.description | Institute of Chemistry Federal University of Uberlândia | - |
Descrição: dc.description | Department of Analytical Chemistry Institute of Chemistry State University of São Paulo (UNESP) | - |
Idioma: dc.language | en | - |
Relação: dc.relation | Microchemical Journal | - |
???dc.source???: dc.source | Scopus | - |
Palavras-chave: dc.subject | Biochar | - |
Palavras-chave: dc.subject | Electrochemical sensors | - |
Palavras-chave: dc.subject | Environmentally-friendly chemical sensors | - |
Palavras-chave: dc.subject | Nanodiamonds | - |
Palavras-chave: dc.subject | Real environmental samples | - |
Palavras-chave: dc.subject | Toxic metal determination | - |
Título: dc.title | A new electrochemical sensor based on eco-friendly chemistry for the simultaneous determination of toxic trace elements | - |
Tipo de arquivo: dc.type | livro digital | - |
Aparece nas coleções: | Repositório Institucional - Unesp |
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