Modification of gold electrode by self-assembled 2-mercapto benzothiazole for the determination of Hg2+

被引：5

作者：

Sahoo, Srikant ^{[1
]}

Satpati, Ashis Kumar ^{[1
]}

Reddy, Annareddy Venkata Ramana ^{[1
]}

机构：

[1] Bhabha Atom Res Ctr, Div Analyt Chem, Bombay 400085, Maharashtra, India

来源：

INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY | 2014年 / 94卷 / 10期

关键词：

self-assembled monolayes (SAMs); gold electrode; 2-mercapto benzothiazole; mercury; stripping voltammetry; STRIPPING VOLTAMMETRIC DETERMINATION; ELECTROCHEMICAL DETECTION; COATED ELECTRODES; INORGANIC MERCURY; METHYLMERCURY; HG(II); 2-MERCAPTOBENZIMIDAZOLE; MONOLAYERS; 2-MERCAPTOBENZOTHIAZOLE; ADSORPTION;

D O I：

10.1080/03067319.2014.914186

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An electrochemical method was developed for the determination of mercury using polycrystalline gold electrode modified by self-assembled monolayers (SAMs) of 2-mercaptobenzothiazole (MBTH). Morphological and electrochemical characterisation of the self-assembled structure of MBTH was performed using atomic force microscopy (AFM) and electrochemical impedance spectroscopy (EIS) measurements. The monolayer of MBTH has shown high affinity for Hg2+. The limit of detection for the determination of Hg2+ using the MBTH SAMs modified gold electrode was obtained as 0.421 mu g L-1. The pre-concentration of Hg2+ at open circuit potential is beneficial for the onsite monitoring of mercury concentration in water samples.

引用

页码：1050 / 1060

页数：11

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