Disposable and low-cost electrochemical sensor based on the colorless nail polish and graphite composite material for tartrazine detection

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorde Lima, Lucas F.-
Autor(es): dc.creatorFerreira, André L.-
Autor(es): dc.creatorMaciel, Cristiane C. [UNESP]-
Autor(es): dc.creatorFerreira, Marystela-
Autor(es): dc.creatorde Araujo, William R.-
Data de aceite: dc.date.accessioned2022-02-22T00:45:32Z-
Data de disponibilização: dc.date.available2022-02-22T00:45:32Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-05-15-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.talanta.2021.122200-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/205872-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/205872-
Descrição: dc.descriptionA new method to manufacture electrochemical devices based on the graphite and colorless nail polish (N-grap) film was developed for tartrazine (Tz) detection. Scanning Electron Microscopy (SEM) demonstrates that the composite material presents a high porous carbon structure. Cyclic voltammetry (CV) and Electrochemical Impedance Spectroscopy (EIS) were employed to electrochemically characterize the electrode material, which corroborates the porous structure of the N-graph due to the enhanced electroactive area (5.4-fold increase) and presented a heterogeneous electron transfer rate constant (k0) of 5.82 × 10−3 cm s−1 for potassium ferricyanide. The electrochemical determination of the Tz was carried out using square-wave voltammetry (SWV), under the optimized experimental conditions, which showed high sensitivity (0.793 A L mol−1) and a lower limit of detection (LOD) of 2.10 × 10−8 mol L−1 with a linear concentration ranging from 2.0 to 50.0 μmol L−1. The developed sensor was applied for the analysis of Tz in sports drink samples and the result obtained by N-grap device was statistically compared with a spectrophotometric method demonstrating good accordance and the accuracy of the proposed method. Based on these results, we believe that this new fabrication method to produce disposable and low-cost electrochemical devices can be an alternative method for in-field analysis of dye in commercial sport drink samples and other relevant applications.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionPortable Chemical Sensors Lab Department of Analytical Chemistry Institute of Chemistry State University of Campinas – UNICAMP, P.O. Box 6154-
Descrição: dc.descriptionCenter of Science and Technology for Sustainability (CCTS) Federal University of São Carlos (UFSCar)-
Descrição: dc.descriptionInstitute of Science and Technology São Paulo State University (UNESP)-
Descrição: dc.descriptionInstitute of Science and Technology São Paulo State University (UNESP)-
Descrição: dc.descriptionFAPESP: 2018/04061–8-
Descrição: dc.descriptionFAPESP: 2018/08782–1-
Descrição: dc.descriptionFAPESP: 2019/02692–3-
Descrição: dc.descriptionCNPq: 438828/2018–6-
Descrição: dc.descriptionCAPES: 88887.479793/2020–00-
Idioma: dc.languageen-
Relação: dc.relationTalanta-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectComposite material-
Palavras-chave: dc.subjectDisposable sensor-
Palavras-chave: dc.subjectElectrochemical sensor-
Palavras-chave: dc.subjectNail polish-
Palavras-chave: dc.subjectTartrazine-
Título: dc.titleDisposable and low-cost electrochemical sensor based on the colorless nail polish and graphite composite material for tartrazine detection-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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