Electrochemical impedimetric sensor based on molecularly imprinted polymers/sol-gel chemistry for methidathion organophosphorous insecticide recognition

被引：62

作者：

Bakas, Idriss ^{[1
,2
]}

Hayat, Akhtar ^{[3
]}

Piletsky, Sergey ^{[4
]}

Piletska, Elena ^{[4
]}

Chehimi, Mohamed M. ^{[2
]}

Noguer, Thierry ^{[1
]}

Rouillon, Regis ^{[1
]}

机构：

[1] Univ Perpignan Via Domitia, IMAGES EA4218, F-66860 Perpignan, France

[2] Univ Paris Diderot, Sorbonne Paris Cite, ITODYS, UMR CNRS 7086, F-75205 Paris 13, France

[3] COMSATS Inst Informat Technol CIIT, Interdisciplinary Res Ctr Biomed Mat IRCBM, Lahore, Pakistan

[4] Cranfield Univ, Cranfield MK43 0AL, Beds, England

来源：

TALANTA | 2014年 / 130卷

关键词：

Molecularly imprinted polymer; Sol-gel; Impedimetric sensor; Methidathion detection; Pesticides; Tap water sample; SELECTIVE DETECTION; OLIVE OIL; PESTICIDES; ACETYLCHOLINESTERASE; IMMOBILIZATION; EXTRACTION; GRAFTS;

D O I：

10.1016/j.talanta.2014.07.012

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

We report here a novel method to detect methidathion organophosphorous insecticides. The sensing platform was architected by the combination of molecularly imprinted polymers and sol-gel technique on inexpensive, portable and disposable screen printed carbon electrodes. Electrochemical impedimetric detection technique was employed to perform the label free detection of the target analyte on the designed MIP/sol-gel integrated platform. The selection of the target specific monomer by electrochemical impedimetric methods was consistent with the results obtained by the computational modelling method. The prepared electrochemical MIP/sol-gel based sensor exhibited a high recognition capability toward methidathion, as well as a broad linear range and a low detection limit under the optimized conditions. Satisfactory results were also obtained for the methidathion determination in waste water samples. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：294 / 298

页数：5

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