Electroanalytical determination of carbendazim and fenamiphos in natural waters using a diamond electrode

Autor(es)

Franca, Rafaela F. ^[1] ; de Oliveira, Hueder Paulo M. ^[2] ; Pedrosa, Valber A. ^[3] ; Codognoto, Lucia ^[4]

Afiliação do(s) autor(es)

^[1] Univ Camilo Castelo Branco, Sao Jose Dos Campos, SP - Brazil

^[2] Univ Fed Pelotas, Ctr Ciencias Quim Farmaceut & Alimentos, Pelotas, RS - Brazil

^[3] UNESP, Dept Chem & Biochem, Inst Biosci, Botucatu, SP - Brazil

^[4] Univ Fed Sao Paulo, Dept Ciencias Exatas & Terra, Inst Ciencias Ambientais Quim & Farmaceut, BR-09972270 Diadema, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: DIAMOND AND RELATED MATERIALS; v. 27-28, p. 54-59, JUL-AUG 2012.
• Citações Web of Science: 34

Resumo

In this study, a method for electroanalytical determination of carbendazim (CBZ) and fenamiphos (FNP) in natural and spiked water was developed using square wave voltammetly in Na2HPO4 0.1 mol L-1 as supporting electrolyte. The calibration curve for carbendazim detection presented good linearity in the concentration range of 0.50 to 15.0 mu M, with a sensitivity of 0.080 A/mol L-1 and a linearity of 0.998. The oxidation of fenamiphos on BDD electrode shows a dynamic range of concentration of 0.5 to 25.0 mu M and sensibility of 0.14 A/mol L-1. The recovery experiments showed values between 70 and 100% for spiked samples thus indicating the feasibility of the electroanalytical methodology to quantify CBZ and FNP in pure or natural waters. (C) 2012 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 08/50588-6 - Eletrodos de ouro modificados por monocamadas auto-organizadas aplicados à determinação de pesticidas
• Beneficiário: Lucia Codognoto de Oliveira
• Modalidade de apoio: Auxílio à Pesquisa - Regular