Authors:
R. Sharma BARC Department of Atomic Energy Nuclear Materials Accounting Cell Trombay 400 085 Bombay India

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P. Kalsi BARC Department of Atomic Energy Nuclear Materials Accounting Cell Trombay 400 085 Bombay India

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L. Sawant BARC Department of Atomic Energy Nuclear Materials Accounting Cell Trombay 400 085 Bombay India

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S. Vaidyanathan BARC Department of Atomic Energy Nuclear Materials Accounting Cell Trombay 400 085 Bombay India

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R. Iyer BARC Department of Atomic Energy Nuclear Materials Accounting Cell Trombay 400 085 Bombay India

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Abstract  

An iterative computational method for the determination of metal ions in aqueous solutions which form reversible couples such as Fe(II)/Fe(III), Pu(III)/Pu(IV) etc. by controlled potential coulometry has been developed. The method involves carrying out the electrolysis to about 95–97% and calculating the total amount present in the sample by an iterative computational method. The method utilizes the direct application of the Nernst equation. The important criterion to be met is that the coulogram of the couple should strictly obey the Nernst equation. The validity of the method has been checked by analyzing about 50 samples of a standard iron solution. Results of analysis of mixtures of Pu and Fe by the iterative technique show that the interference of Fe can almost entirely be eliminated. However, analysis of Pu samples by this procedure gives results about 2–3% lower than the expected value. A careful examination of the experimental coulograms of Pu in lM HClO4 indicates a slight deviation from the theoretical coulogram, where as those of Fe match exactly.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)