Disposable three-dimensional graphene oxide electrode with sandwich-like architecture for the determination of ascorbic acid in fruit juices

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorBuffon, Edervaldo-
Autor(es): dc.creatorStradiotto, Nelson Ramos-
Data de aceite: dc.date.accessioned2025-08-21T20:11:46Z-
Data de disponibilização: dc.date.available2025-08-21T20:11:46Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-06-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.mtcomm.2023.105535-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/249631-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/249631-
Descrição: dc.descriptionThis work reports the development of a three-dimensional graphene oxide structure on the screen-printed electrode surface for the detection of ascorbic acid. This electrode was characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, RAMAN spectroscopy, cyclic voltammetry and electrochemical impedance spectroscopy. The present work also investigated the electrochemical behavior of ascorbic acid and its electrooxidation mechanism on the three-dimensional graphene oxide surface. The detection of ascorbic acid was conducted by linear scanning voltammetry in the concentration range from 1.0 × 10−5 to 1.0 × 10−2 mol L−1, and the limits of detection and quantification obtained for the proposed electrode were 3.4 × 10−6 and 1.1 × 10−5 mol L−1 (n = 3), respectively. The device also exhibited excellent selectivity, repeatability, reproducibility and stability. The methodology developed was applied for the determination of ascorbic acid in grape and orange juice samples with an accuracy rate ranging from 99% to 105%. These results show that the proposed electrode can be safely and reliably applied for the monitoring of ascorbic acid in fruit juices.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionInstitute of Chemistry São Paulo State University (UNESP), São Paulo-
Descrição: dc.descriptionBioenergy Research Institute São Paulo State University (UNESP), São Paulo-
Descrição: dc.descriptionInstitute of Chemistry São Paulo State University (UNESP), São Paulo-
Descrição: dc.descriptionBioenergy Research Institute São Paulo State University (UNESP), São Paulo-
Descrição: dc.descriptionFAPESP: #2017/22401–8-
Descrição: dc.descriptionFAPESP: #2019/13818–8-
Idioma: dc.languageen-
Relação: dc.relationMaterials Today Communications-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAscorbic acid-
Palavras-chave: dc.subjectElectrochemical sensor-
Palavras-chave: dc.subjectFruit juices-
Palavras-chave: dc.subjectScreen-printed electrode-
Palavras-chave: dc.subjectThree-dimensional graphene oxide-
Título: dc.titleDisposable three-dimensional graphene oxide electrode with sandwich-like architecture for the determination of ascorbic acid in fruit juices-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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