A simple and rapid spectrophotometric determination of thallium(iii) with trifluoperazine hydrochloride

Revanasiddappa, H. D. and Kiran Kumar, T. N. (2002) A simple and rapid spectrophotometric determination of thallium(iii) with trifluoperazine hydrochloride. Analytical Sciences, 18 (10). pp. 1131-1135. ISSN 1348-2246

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Official URL: https://doi.org/10.2116/analsci.18.1131

Abstract

A simple, sensitive and rapid spectrophotometric method was developed for the determination of thallium(III) using trifluoperazine hydrochloride (TFPH). The method is based on the oxidation of TFPH by thallium(III) in a phosphoric acid medium to form a red-colored radical cation with an absorption maximum at 505 nm. Beer’ law is valid over the concentration range of 0.5 - 6.5 μg ml-1 of thallium(III). The molar absorptivity and Sandell’s sensitivity of the color system are 2.14 × 104 l mol-1 cm-1 and 0.0095 μg cm-2, respectively. The optimum reaction conditions and other analytical parameters were evaluated. The tolerance limit of the method towards various ions usually associated with thallium has been studied. The proposed method has been successfully applied to the analysis of thallium in alloys, minerals, standard reference material, water, and urine samples.

Item Type: Article
Subjects: C Chemical Science > Chemistry
Divisions: Department of > Chemistry
Depositing User: manjula User
Date Deposited: 26 Sep 2019 07:15
Last Modified: 26 Sep 2019 07:15
URI: http://eprints.uni-mysore.ac.in/id/eprint/8543

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