Square wave voltammetry on boron-doped diamond electrodes for analytical determinations

被引：84
|
作者：
Codognoto, L [1 ]
Machado, SAS [1 ]
Avaca, LA [1 ]
机构：
[1] Univ Sao Paulo, Inst Quim, BR-13560970 Sao Carlos, SP, Brazil
来源：
DIAMOND AND RELATED MATERIALS | 2002年 / 11卷 / 09期
关键词：
diamond electrode; square wave voltammetry; electroanalysis; pentachlorophenol;
D O I：
10.1016/S0925-9635(02)00134-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The use of square wave voltammetry in conjunction with a boron-doped diamond electrode for the analytical determination of pentachlorophenol. is described. After optimization of the experimental conditions, that model molecule was analyzed in pure and natural waters using a Britton-Robinson buffer (pH = 5.5) as the supporting electrolyte. Oxidation occurs at 0.80 V vs. Ag/AgCl in a two-electron process controlled by adsorption of the species. The detection limits obtained were 5.5 in pure water and 15.5 mug l(-1) for polluted water taken from a local creek. The combination of square wave voltammetry and diamond electrodes is an interesting and desirable alternative for analytical determinations. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：1670 / 1675
页数：6
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