alexa Chemical Sensor for Determination of Mercury in Contaminated Water | OMICS International | Abstract
ISSN: 2329-6798

Modern Chemistry & Applications
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Research Article

Chemical Sensor for Determination of Mercury in Contaminated Water

Ahmed Khudhair Hassan*
Environment and Water Research and Technology Directorate, Ministry of Science and Technology, Baghdad, Iraq
Corresponding Author : Ahmed Khudhair Hassan
Environment and Water Research and Technology Directorate
Ministry of Science and Technology
Baghdad, Iraq
E-mail: [email protected]
Received August 30, 2013; Accepted September 18, 2013; Published September 25, 2013
Citation: Hassan AK (2013) Chemical Sensor for Determination of Mercury in Contaminated Water. Mod Chem appl 1:111. doi:10.4172/2329-6798.1000111
Copyright: © 2013 Hassan AK. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

In this research, we constructed chemical sensor for determining mercury in contaminated water because we needed fast, simple, low-cost, and accurate determination of mercury in different environmental systems. The constructed membrane composed of (Poly Vinyl Chloride) PVC as a matrix material, 1,5-diphenylthiocarbazone (dithizone) as electro active compound, and di-n-butyl phthalate (DBPH) as a plasticizer. The optimum membrane composition 30% PVC, 65% DBPH, 5% dithizone exhibited the better Nernstian response. The results showed that probe is high stability along the pH range from (3.5 to 8). The electrode displays a linear log [Hg2+] versus Electromotive Force (EMF) response over a wide concentration range of (5×10−6 to 1×10−2M) with Nernstian slope of 29.7 ± 0.5 mV decade-1and limit of detection 3×10−6 M. The proposed sensor shows relatively high selectivity for mercury ion in different matrix solution, other ions had negligible interference effect on the reading.

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