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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.)

Determination of gemfibrozil in pharmaceutical and urine samples by square-wave adsorptive stripping voltammetry using a glassy carbon electrode modified with multi-walled carbon nanotubes within a dihexadecyl hydrogen phosphate film

Texto completo
Autor(es):
Ardila, Jorge Armando [1] ; Oliveira, Geiser Gabriel [1] ; Medeiros, Roberta Antigo [1] ; Fatibello-Filho, Orlando [1, 2]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Univ Fed Sao Carlos, Dept Quim, BR-13560970 Sao Carlos, SP - Brazil
[2] INCT Bioanalit, Campinas, SP - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: JOURNAL OF ELECTROANALYTICAL CHEMISTRY; v. 690, p. 32-37, FEB 1 2013.
Citações Web of Science: 20
Resumo

Glassy carbon electrode modified with functionalized multi-walled carbon nanotubes within a dihexadecyl hydrogen phosphate film was used to develop a sensitive and simple square-wave adsorptive stripping voltammetric (SWAdSV) method for the determination of gemfibrozil. The cyclic voltammograms obtained showed one irreversible anodic peak for gemfibrozil at a potential of 1.3 V using a 0.1 mol L-1 phosphate buffer solution (pH 2.0). The cyclic voltammetric responses were studied with regard to scan rate, and the number of electrons transferred during the oxidation process was calculated. A calibration curve for gemfibrozil in the concentration range from 75 to 1000 nmol L-1 with a detection limit of 53 nmol L-1 were obtained. The proposed SWAdSV method was successfully applied to determine gemfibrozil in pharmaceutical and urine samples with good accuracy and precision. (C) 2012 Elsevier B.V. All rights reserved. (AU)

Processo FAPESP: 11/00601-9 - Aplicação de eletrodos de diamante dopado com boro e de nitreto de carbono amorfo para a determinação simultânea de fármacos de diferentes grupos terapêuticos em formulações farmacêuticas e em urina
Beneficiário:Roberta Antigo Medeiros
Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado