A spectrophotometric assay method for vanadium in biological and environmental samples using 2,4-dinitrophenylhydrazine with imipramine hydrochloride

Al-Tayar, Naef Ghllab Saeed and Nagaraja, P. and Vasantha, R. A. and Shresta, Ashwinee Kumar (2012) A spectrophotometric assay method for vanadium in biological and environmental samples using 2,4-dinitrophenylhydrazine with imipramine hydrochloride. Environmental Monitoring and Assessment, 184 (1). pp. 181-191. ISSN 1573-2959

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Abstract

A simple, rapid, and sensitive method involving the interaction of 2,4-dinitrophenylhydrazine with imipramine hydrochloride in presence of vanadium (V) in sulfuric acid medium has been proposed for the determination of vanadium. The purple-colored product developed showed an absorption maximum at 560 nm and was stable for 24 h. The working curve was linear over the concentration range of 0.1--2.8 μg mlþinspace−þinspace1, with sensitivity of detection of 0.0124 μg mlþinspace−þinspace1. Molar absorptivity and Sandell's sensitivity were found to be 2.6 × 104 l/mol cm and 0.0039 μg cmþinspace−þinspace1, respectively. The accuracy of the proposed method was assessed by Student's t test and variance ratio F test, and the results were on par with the reported method. The method was successfully used in the determination of V in water, human urine, soil, and plant samples, and it was free from interference by various concomitant ions.

Item Type:	Article
Subjects:	C Chemical Science > Chemistry
Divisions:	Department of > Chemistry
Depositing User:	C Swapna Library Assistant
Date Deposited:	29 Jul 2019 10:35
Last Modified:	29 Jul 2019 10:35
URI:	http://eprints.uni-mysore.ac.in/id/eprint/6202

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