Electrochemical detection of triacetone triperoxide employing the electrocatalytic reaction of iron(II/III)-ethylenediaminetetraacetate and hydrogen peroxide

被引：43

作者：

Laine, Derek F. ^{[1
]}

Roske, Christopher W. ^{[1
]}

Cheng, I. Francis ^{[1
]}

机构：

[1] Univ Idaho, Dept Chem, Moscow, ID 83844 USA

来源：

ANALYTICA CHIMICA ACTA | 2008年 / 608卷 / 01期

基金：

美国国家科学基金会;

关键词：

triacetone triperoxide; electrocatalytic; detection; iron(III)-ethylenediaminetetraacetate;

D O I：

10.1016/j.aca.2007.12.003

中图分类号：

O65 [分析化学];

学科分类号：

070302 [分析化学]; 081704 [应用化学];

摘要：

An electrochemical method for the detection of triacetone triperoxide (TATP) is proposed and examined. In this method, TATP solutions were treated with 1.08 MHCl for 10 min releasing H2O2 and/or hydroperoxides. Subsequently, these peroxides undergo an electrocatalytic reduction through the Fe(II/III)ethylenediaminetetraacetate (EDTA) complex at a glassy carbon electrode. Cyclic voltammetric results indicate that no redox reaction was observed between Fe(II)EDTA and TATP. Acid treated TATP yielded voltammograms indicative of electrocatalysis of ROOH/HOOH reduction via Fe(II/III)EDTA redox cycling. Chronoamperometric results yielded a detection limit of 0.89 mu M for TATP and a sensitivity of 0.025 mA mM(-1). The influence of pH and 02 interference on the analytical signal is briefly discussed. (c) 2007 Elsevier B.V All rights reserved.

引用

页码：56 / 60

页数：5

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