Electrochemical sensor based on biochar and reduced graphene oxide nanocomposite for carbendazim determination

Sant’Anna, Mércia Vieira da Silva; Carvalho, Sanny Wedja Melo Machado de; Gevaerd, Ava; Silva, Jonatas O.S.; Santos, Eugene; Carregosa, Ingred Suellen Carvalho; Wisniewski, Alberto; Marcolino‐Júnior, Luiz H.; Bergamini, Márcio F.; Sussuchi, Eliana Midori

doi:10.1016/j.talanta.2020.121334

Cited by 62 publications

(30 citation statements)

References 31 publications

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“…Voltammetric methods have been developed for the determination of the antioxidant capacity of Ginkgo biloba using carbon-based electrodes [10]. Nevertheless, the electrochemical performance of carbon electrodes can be enhanced by modifying their surfaces using carbonaceous nanomaterials such as carbon nanotubes [11,12], carbon nanofibers [13], graphene [14], fullerene [15], biochar [16,17], etc. These approaches have been used extensively for the modification of screen-printed electrodes and development of electrochemical sensors [18].…”

Section: Introductionmentioning

confidence: 99%

Estimation of Active Compounds Quantity from Pharmaceuticals Based on Ginkgo biloba

Gunache

Apetrei

2020

Chemosensors

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Ginkgo biloba is one of the most important sources of active compounds, mainly flavonoids and phenolic compounds. Due to its importance related to pharmaceutical practice, the making of a qualitative and quantitative method for the detection and quantification of active compounds from Ginkgo biloba pharmaceutical products is desirable. In this study, the content of biological active compounds from Ginkgo biloba products was estimated using cyclic voltammetry. The electrochemical determination of active compounds was carried out by using a screen-printed carbon electrode modified with carbon nanotubes. The studies regarding parameter optimization were made using solutions containing potassium ferrocyanide and catechol, respectively. In both cases, the redox processes of studied compounds was observed, which were controlled by the diffusion phenomenon. We analyzed two pharmaceutical products containing Ginkgo biloba, a RX product (recipe medicine requires a medical prescription to be dispensed) and an OTC (Over-The-Counter, which can be obtained without a prescription) product. The cyclic voltammograms of the two products showed two redox processes due to the antioxidant properties of the products. It was found that the RX product had a greater content of active compounds compared to the OTC product. Therefore, the voltammetric method has great utility for the determination of compounds with redox properties from pharmaceutical products containing Ginkgo biloba.

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Section: Introductionmentioning

confidence: 99%

Estimation of Active Compounds Quantity from Pharmaceuticals Based on Ginkgo biloba

Gunache

Apetrei

2020

Chemosensors

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“…The use of the chemically modified electrodes has turned one of the most modern tools for electroanalysis of pharmaceutical compounds, pesticides, and other biologically active compounds [1][2][3][4][5][6]. Their main advantages are precision, rapidity, and affinity to the analyte.…”

Section: Introductionmentioning

confidence: 99%

Untitled

2020

Lett Appl NanoBioSci

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In this work, a general theoretical description of the electrochemical determination of Sudan dyes by cathodic and anodic route has been made. Two mathematical models have been developed for each case, being, afterward, analyzed by means of linear stability theory and bifurcation analysis. It has been shown that in both cases, the systems are efficient from the electroanalytical point of view. The possibility for the oscillatory and monotonic instability has also been verified.

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“…A técnica de Voltametria de Pulso Diferencial (VPD) foi utilizada para investigar os parâmetros instrumentais para a construção de um método analítico para a determinação de CBZ. A metodologia de escolha seguiu a estratégia ex-situ(SANT'ANNA et al, 2020), que consistia em uma etapa inicial de pré-concentração do analito apenas em circuito aberto. Outra célula, contendo somente o eletrólito suporte foi utilizada para a etapa de leituras voltamétrica.…”

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Ácidos Graxos Vegetais: Composição Química, Atividade Biológica E Potencial Biotecnológico

Santos¹,

Lima²,

Castro³

2021

Trabalhos Nas Áreas De Fronteira Da Química 2

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Direitos para esta edição cedidos à Atena Editora pelos autores. Todo o conteúdo deste livro está licenciado sob uma Licença de Atribuição Creative Commons. Atribuição-Não-Comercial-NãoDerivativos 4.0 Internacional (CC BY-NC-ND 4.0). O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores, inclusive não representam necessariamente a posição oficial da Atena Editora. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comerciais. Todos os manuscritos foram previamente submetidos à avaliação cega pelos pares, membros do Conselho Editorial desta Editora, tendo sido aprovados para a publicação com base em critérios de neutralidade e imparcialidade acadêmica. A Atena Editora é comprometida em garantir a integridade editorial em todas as etapas do processo de publicação, evitando plágio, dados ou resultados fraudulentos e impedindo que interesses financeiros comprometam os padrões éticos da publicação. Situações suspeitas de má conduta científica serão investigadas sob o mais alto padrão de rigor acadêmico e ético.

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Electrochemical sensor based on biochar and reduced graphene oxide nanocomposite for carbendazim determination

Cited by 62 publications

References 31 publications

Estimation of Active Compounds Quantity from Pharmaceuticals Based on Ginkgo biloba

Estimation of Active Compounds Quantity from Pharmaceuticals Based on Ginkgo biloba

Untitled

Ácidos Graxos Vegetais: Composição Química, Atividade Biológica E Potencial Biotecnológico

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