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Analytical Letters Volume 42, 2009 - Issue 18
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ELECTROCHEMISTRY

Application of Adsorptive Stripping Voltammetry for Determination of Uranium in the Presence of 3-Hydroxy-2-Naphthoic Hydrazide

Mohsen Shahlaei Department of Medicinal Chemistry, Faculty of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran; Department of Medicinal Chemistry, Faculty of Pharmacy, Kermanshah University of Medical Sciences, Kermanshah, Iran; Chemistry Department, Faculty of Sciences, Razi University, Kermanshah, Iran
,
Mohammad Bagher Gholivand Department of Medicinal Chemistry, Faculty of Pharmacy, Isfahan University of Medical Sciences, Isfahan, IranCorrespondence[email protected] ; [email protected]
&
Alireza Pourhossein Department of Medicinal Chemistry, Faculty of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
Pages 3085-3095 | Received 21 Nov 2008, Accepted 07 Aug 2009, Published online: 10 Nov 2009
 
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Abstract

A new method is presented for determination of uranium based on a cathodic adsorptive stripping of the complex of uranium with a 3-hydroxy-2-naphthoic hydrazide at a hanging mercury drop electrode (HMDE). The most suitable operating conditions and parameters, such as pH, deposition potential, deposition time, ligand concentration, and others, were selected and the determination of uranium from aqueous solutions using the standard addition method was possible. Under optimum conditions, the measured peak current is proportional to the concentration of uranium over the range of 1–500 nA with a detection limit of 0.75 nM.

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