Highly sensitive electrochemical detection of trace liquid peroxide explosives at a Prussian-blue 'artificial-peroxidase' modified electrode

被引:67
作者
Lu, Donglai
Cagan, Avi
Munoz, Rodrigo A. A.
Tangkuaram, Tanin
Wang, Joseph [1 ]
机构
[1] Arizona State Univ, Biodesign Inst, Tempe, AZ 85287 USA
[2] Arizona State Univ, Dept Chem & Chem Engn, Tempe, AZ 85287 USA
关键词
D O I
10.1039/b613092e
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A highly sensitive electrochemical assay of the peroxide-based explosives triacetone triperoxide ( TATP) and hexamethylene triperoxide diamine ( HMTD) at a Prussian-blue (PB) modified electrode is reported. The method involves photochemical degradation of the peroxide explosives and a low potential (0.0 V) electrocatalytic amperometric sensing of the generated hydrogen peroxide at the PB transducer and offers nanomolar detection limits following a short ( 15 s) irradiation times. The electrochemical sensing protocol should facilitate rapid field screening of peroxide explosives.
引用
收藏
页码:1279 / 1281
页数:3
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