Rapid and sensitive spectrophotometric method for the determination of the trace amount of thallium (iii) in water and urine samples by new oxidative coupling reaction Reportar como inadecuado




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Naef Ghllab Saeed Al-Tayar ; Anantharaman Shivakumar ; Ashwinee Kumar Shresta ; Avinash K. Gowda ;Journal of the Mexican Chemical Society 2009, 53 (4)

Autor: Padmarajaiah Nagaraja

Fuente: http://www.redalyc.org/


Introducción



Journal of the Mexican Chemical Society ISSN: 1870-249X editor.jmcs@gmail.com Sociedad Química de México México Nagaraja, Padmarajaiah; Saeed Al-Tayar, Naef Ghllab; Shivakumar, Anantharaman; Kumar Shresta, Ashwinee; Gowda, Avinash K. Rapid and Sensitive Spectrophotometric Method for the Determination of the Trace Amount of Thallium (III) in Water and Urine Samples by New Oxidative Coupling Reaction Journal of the Mexican Chemical Society, vol.
53, núm.
4, octubre-diciembre, 2009, pp.
201-208 Sociedad Química de México Distrito Federal, México Available in: http:--www.redalyc.org-articulo.oa?id=47512356001 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative Article J.
Mex.
Chem.
Soc.
2009, 53(4), 201-208 © 2009, Sociedad Química de México ISSN 1870-249X Rapid and Sensitive Spectrophotometric Method for the Determination of the Trace Amount of Thallium (III) in Water and Urine Samples by New Oxidative Coupling Reaction Padmarajaiah Nagaraja,* Naef Ghllab Saeed Al-Tayar, Anantharaman Shivakumar, Ashwinee Kumar Shresta, and Avinash K.
Gowda Department of Studies in Chemistry, University of Mysore, Manasagangotri, Mysore 570 006, India.
Phone: 91-821-2412557, Fax: 91-821-2421263.
drpn58@yahoo.co.in Received May 2, 2009; accepted November 11, 2009 Abstract.
A very simple, sensitive and fairly selective direct spectrophotometric method is presented for the rapid determination of thallium(III) at trace level.
The method is based on the oxidation of 2-hydrazono-3-methyl-2,3-dihydrobenzo[d]thiazole hydrochloride (MBTH) by thallium(III) in phosphoric acid medium to form a diazonium cation, which couples immediately with 10,11-dihydro-5Hdibenzo[b,f]azepine (IDB) at room temperature giving a blue colored species having a maximum ab...





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