Authors:
P. Magesvaran Kalpakkam Reprocessing Plant, BARCF, Kalpakkam, 603 102 Tamil Nadu, India

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K. Suresh Kumar Kalpakkam Reprocessing Plant, BARCF, Kalpakkam, 603 102 Tamil Nadu, India

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T. Kumar Kalpakkam Reprocessing Plant, BARCF, Kalpakkam, 603 102 Tamil Nadu, India

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J. Gayen Kalpakkam Reprocessing Plant, BARCF, Kalpakkam, 603 102 Tamil Nadu, India

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B. Shreekumar Kalpakkam Reprocessing Plant, BARCF, Kalpakkam, 603 102 Tamil Nadu, India

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P. Dey Kalpakkam Reprocessing Plant, BARCF, Kalpakkam, 603 102 Tamil Nadu, India

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Abstract  

To achieve end user’s specified PuO2, controlling and monitoring of Pu in its fourth valency state is essential prior to the conversion of Pu-nitrate to its oxide through oxalate precipitation process. Conventional radiometric procedure for the analysis of Pu oxidation state in Pu-nitrate solution containing trace level of Pu(III) has limitation due to oxidation of Pu(III) during the sample preparation with respect to acidity. A simple direct spectrophotometry using an optic fiber spectrophotometer was attempted for the estimation of trace level of Pu(III), after separating the bulk amount of Pu(IV) by maintaining the sample acidity. By using a synergistic mixture of 30 % TBP and 1 M theonyl trifluoro acetone in benzene, the Pu(IV) could be removed to a level which doesn’t interfere in the Pu(III) absorption.

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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)