Electrochemical determination of nitrite at a bare glassy carbon electrode; why chemically modify electrodes?

被引：209

作者：

Kozub, Barbara R. ^{[1
]}

Rees, Neil V. ^{[1
]}

Compton, Richard G. ^{[1
]}

机构：

[1] Univ Oxford, Phys & Theoret Chem Lab, Dept Chem, Oxford OX1 3QZ, England

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2010年 / 143卷 / 02期

关键词：

Nitrite oxidation; Bare glassy carbon; Cyclic voltammetry; Square wave voltammetry; Chronoamperometry; Chemically modified electrodes; ELECTROCATALYTIC REDUCTION; AMPEROMETRIC DETECTION; VOLTAMMETRIC BEHAVIOR; ANODIC VOLTAMMETRY; OXIDATION; NITRATE; NANOPARTICLES; FILM; PLATINUM; SENSOR;

D O I：

10.1016/j.snb.2009.09.065

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The oxidation of nitrite was Studied at a bare glassy carbon (GC) electrode ill aqueous Solution using cyclic voltammetry. square wave voltammetry and chronoamperometry. A mechanism for the electrode reaction is proposed. A limit of detection (LOD) of 4 x 10(-7) M was obtained for amperometry and this is evaluated with reference to literature reports for NO2- detection: in particular, the possible merits of using chemically modified electrodes as compared to 'bare' unmodified electrodes are critically assessed. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：539 / 546

页数：8

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