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

被引：73
作者：
Franca, Rafaela F. [2 ]
de Oliveira, Hueder Paulo M. [3 ]
Pedrosa, Valber A. [4 ]
Codognoto, Lucia [1 ]
机构：
[1] Univ Fed Sao Paulo, Dept Ciencias Exatas & Terra, Inst Ciencias Ambientais Quim & Farmaceut, BR-09972270 Diadema, SP, Brazil
[2] Univ Camilo Castelo Branco, Sao Jose Dos Campos, SP, Brazil
[3] Univ Fed Pelotas, Ctr Ciencias Quim Farmaceut & Alimentos, Pelotas, RS, Brazil
[4] UNESP, Dept Chem & Biochem, Inst Biosci, Botucatu, SP, Brazil
来源：
DIAMOND AND RELATED MATERIALS | 2012年 / 27-28卷
基金：
巴西圣保罗研究基金会;
关键词：
Pesticide; Diamond electrode; Carbendazim; Fenamiphos; Water analysis; SQUARE-WAVE VOLTAMMETRY; FILM ELECTRODES; PESTICIDES; ELECTROCHEMISTRY; MICROELECTRODES; CHROMATOGRAPHY; PARATHION;
D O I：
10.1016/j.diamond.2012.05.010
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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.
引用
收藏
页码：54 / 59
页数：6
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