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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Electrochemical determination diethylstilbestrol by a multi-walled carbon nanotube/cobalt phthalocyanine film electrode

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Autor(es):
Aragao, Janmille S. ; Ribeiro, Francisco W. P. ; Portela, Rafael R. ; Santos, Vanessa N. ; Sousa, Camila P. ; Becker, Helena ; Correia, Adriana N. ; de Lima-Neto, Pedro
Número total de Autores: 8
Tipo de documento: Artigo Científico
Fonte: SENSORS AND ACTUATORS B-CHEMICAL; v. 239, p. 933-942, FEB 2017.
Citações Web of Science: 21
Resumo

An analytical methodology for determination of diethylstilbestrol (DES) based on electrochemical response of this compound on glassy carbon electrode modified with gold nanoparticules (AuNPTs), multiwall carbon nanotubes (MWCNTs) and cobalt phtolocyanine (CoPc) was proposed. The modified electrode catalysed the electrochemical oxidation of DES and also improved the sensitivity in comparison with unmodified electrode. The experimental conditions were optimized and also the kinetic electrochemical parameters were also evaluated. From square wave voltammograms, the calibration curve for DES determination were obtained and the calculated detection and quantification limits were equal to 1.99 x 10(-7) mol L-1 and the 6.64 x 10(-7) mol L-1, respectively. The proposed electroanalytical methodology was successfully applied for DES determination in water, and meat with satisfactory results, showing that fabricated sensor has potential do be applied in laboratory practices for DES determination in complex samples. (C) 2016 Elsevier B.V. All rights reserved. (AU)

Processo FAPESP: 14/06704-2 - Síntese e caracterização de vanadatos de bismuto para a fotólise da água e degradação de moléculas orgânicas
Beneficiário:Francisco Wirley Paulino Ribeiro
Linha de fomento: Bolsas no Brasil - Pós-Doutorado