Desalination, ( ISI ), Volume (250), No (1), Year (2010-1) , Pages (56-61)

Title : ( Construction of barium (II) PVC membrane electrochemical sensor based on 3-deoxy-D-erythro-hexos-2-ulose bis (thiosemicarbazone) as a novel ionophore )

Authors: Hassan Ali Zamani , Mahmod Taghi Hamed Mosavian , Elham Aminzadeh , Mohammad Reza Ganjali , Mousa Ghaemy , Hossien Behmadi , Farnoush Faridbod ,

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In this study, a newion-selective electrode for Ba2+ is described, illustrating 3-deoxy-D-erythro-hexos-2-ulose bis (thiosemicarbazone) (DHUT) in a poly(vinylchloride) (PVC) membranewith benzyl acetate (BA) as a plasticizer and sodium tetraphenyl borate (NaTPB) as an anionic additive. This sensor presented very good selectivity and sensitivity towards the Ba2+ ions over a wide variety of cations, including alkali, alkaline earth, transition and heavy metal ions. The electrode revealed a great improvement in the selectivity coefficients for the Ba2+ ions in comparisonwith the formerly reported Ba2+ sensors. The proposed electrode exhibited a significantly enhanced response towards the Ba2+ ions across the concentration range of 1.0×10−6–1.0×10−2 M for the pH variation from 2.6 to 11with a lower detection limit of 5.6×10−7 M. Moreover, the sensors displayed the Nernstian slope of 29.6±0.5 mVper decade, having a fast response timewithin 15 s over the entire concentration range. It could also be used for at least 2 monthswith no potential divergence. As a result, the developed sensorwas successfully applied to the direct bariumion determination in solutions, rock samples and as an indicator electrode in the Ba2+ ion potentiometric titration with EDTA.

Keywords

, PVC membrane, Ion-selective electrode, Sensor, Potentiometry, 3-Deoxy-D-erythro-hexos-2-ulose
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@article{paperid:1013386,
author = {Hassan Ali Zamani and Hamed Mosavian, Mahmod Taghi and Elham Aminzadeh and Mohammad Reza Ganjali and Mousa Ghaemy and Hossien Behmadi and Farnoush Faridbod},
title = {Construction of barium (II) PVC membrane electrochemical sensor based on 3-deoxy-D-erythro-hexos-2-ulose bis (thiosemicarbazone) as a novel ionophore},
journal = {Desalination},
year = {2010},
volume = {250},
number = {1},
month = {January},
issn = {0011-9164},
pages = {56--61},
numpages = {5},
keywords = {PVC membrane; Ion-selective electrode; Sensor; Potentiometry; 3-Deoxy-D-erythro-hexos-2-ulose bis (thiosemicarbazone)},
}

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%0 Journal Article
%T Construction of barium (II) PVC membrane electrochemical sensor based on 3-deoxy-D-erythro-hexos-2-ulose bis (thiosemicarbazone) as a novel ionophore
%A Hassan Ali Zamani
%A Hamed Mosavian, Mahmod Taghi
%A Elham Aminzadeh
%A Mohammad Reza Ganjali
%A Mousa Ghaemy
%A Hossien Behmadi
%A Farnoush Faridbod
%J Desalination
%@ 0011-9164
%D 2010

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