Anandhakumar, S. and Dhanalakshmi, K. and Mathiyarasu, J. (2014) Non-enzymatic organophosphorus pesticide detection using gold atomic cluster modified electrode. Electrochemistry Communications, 38. pp. 15-18. ISSN 1388-2481

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Abstract

In this work,we report the detection of organophosphorous pesticides, particularlymethyl parathion using gold atomic clusters (AuACs) non-enzymatically employing squarewave voltammetry (SWV). Synthesis of surfactant stabilized gold atomic clusters on a polycrystalline gold electrode was executed by a simple potentiodynamic cyclic voltammetry technique. The clusters are characterized using UV–visible spectroscopy and transmission electron microscopy techniques. The electroanalytical results exhibited linear behavior in the micro (10–80 μM) as well as nanomolar (1–10 nM) concentration ranges and the detection limit is found to be 0.65 nM (S/N=3). The proposed sensor matrix is evaluated with real samples and the results are in good agreement with high performance liquid chromatographic (HPLC) analysis.

Item Type:	Article
Uncontrolled Keywords:	Non-enzymatic sensor, Gold atomic clusters, Organophosphorus pesticides, Square wave voltammetry
Subjects:	Electrodics and Electrocatalysis Nanotechnology
Divisions:	UNSPECIFIED
Depositing User:	Dr. N Meyyappan
Date Deposited:	30 Dec 2013 12:28
Last Modified:	30 Dec 2013 12:28
URI:	http://cecri.csircentral.net/id/eprint/3052

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