Electrosynthesis of three-dimensional nanoporous nickel on screen-printed electrode used for the determination of narirutin in citrus wastewater

Autor(es)

Beluomini, Maisa Azevedo ^[1] ; Stradiotto, Nelson Ramos ^{[2, 1]} ; Boldrin, Maria Valnice ^[1]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ UNESP, Inst Chem, Dept Analyt Chem, 55 Prof Francisco Degni St, BR-14800060 Araraquara, SP - Brazil

^[2] Sao Paulo State Univ UNESP, Bioenergy Res Inst IPBEN, 55 Prof Francisco Degni St, BR-14800060 Araraquara, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Food Chemistry; v. 353, AUG 15 2021.
• Citações Web of Science: 0

Resumo

In this study, an electrochemical sensor was designed for the detection of narirutin using three-dimensional nanostructured porous nickel on screen-printed electrode (3DnpNi/SPE). The modified electrode was successfully synthesized by the dynamic hydrogen bubble template method. The 3DnpNi/SPE was characterized by spectroscopic, microscopic, and electrochemical methods. The results showed that the 3DnpNi/SPE presents good electrocatalytic activity for the oxidation of narirutin. The quantification of narirutin was conducted by differential pulse voltammetry, which showed a wide concentration range (1.0 \& times; 10-7 \& ndash; 1.0 \& times; 10-5 mol L-1), with low detection limit (3.9 \& times; 10-8 mol L-1), and excellent sensitivity (0.31 A L mol- 1). The proposed electrode was applied toward the determination of narirutin in yellow water sample from the citrus industry, where it presented a good degree of accuracy. The 3DnpNi/SPE showed repeatability, long-term stability, and selectivity. The results obtained showed agreement with those obtained by HPLC/DAD method.\& nbsp; Chemical compounds studied in this article. (AU)

• Processo FAPESP: 18/12131-6 - Sensores eletroquímicos baseados em eletrodos impressos modificados com nanoporos metálicos e monitorados por rede sem fio para determinação de flavonóides nos resíduos da indústria cítrica
• Beneficiário: Maísa Azevedo Beluomini
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 17/22401-8 - Fruto-refinaria: processos de obtenção, métodos de caracterização e geração de produtos oriundos de resíduos da fruticultura
• Beneficiário: Nelson Ramos Stradiotto
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 14/50945-4 - INCT 2014: Instituto Nacional de Tecnologias Alternativas para Detecção, Avaliação Toxicológica e Remoção de Micropoluentes e Radioativos
• Beneficiário: Maria Valnice Boldrin
• Modalidade de apoio: Auxílio à Pesquisa - Temático