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Complexometric determination of palladium(II) using 2-mercapto propionyl glycine as demasking agent

Shetty, Prakash and Shetty, Nityananda A and Gadag, R V (2002) Complexometric determination of palladium(II) using 2-mercapto propionyl glycine as demasking agent. Indian Journal of Chemistry Technology, 9. pp. 127-129.

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Abstract

A simple, rapid and accurate complexometric method for the determination of palladium(II) is proposed, based on the selective demasking property of 2-mercapto propionyl glycine (MPGH,) towards palladium(II). In the presence of diverse metal ions. palladium(II) is complexed with excess of EDTA and the surplus EDTA is back titrated at pH 5-5.5 (acetic acid-acetate buffer) with standard zinc sulphate solution using xylenol orange as indicator. An excess of a 0.2% aqueous solution of MPGH, is then added to displace EDTA from Pd(Il)-EDTA complex. The released EDTA is titrated with the same standard zinc sulphate solution as before. Reproducible and accurate results are obtained in the concentration range 2-22 mg of palladium with relative error of ±0.36% and coefficient of variation (n=6) not exceeding 0.31%. The effect of diverse ions are studied. The method is used for the determination of palladium in its complexes. catalysts and synthetic alloy mixtures.

Item Type: Article
Uncontrolled Keywords: palladium(II), complexometric determination
Subjects: Engineering > MIT Manipal > Chemistry
Engineering > MIT Manipal > Printing and Media
Depositing User: MIT Library
Date Deposited: 23 Dec 2013 09:57
Last Modified: 23 Dec 2013 09:57
URI: http://eprints.manipal.edu/id/eprint/138065

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