Depth-wise core sediment profile of tissue free and organic bound tritium in dynamic marine environment

Down core variation of tissue free and organic bound tritium in sediment cores was evaluated to assess the retention of tritium (H-3) by bottom sediment in the dynamic marine environment of Mumbai Harbour Bay. Tissue free water tritium (TFWT) was evaluated by extraction of H-3 from the sediment by e...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2015-01, Vol.303 (1), p.845-851
Main Authors: Bhade, Sonali P. D., Singhal, R. K., Basu, H., Kumar, Ajay, Karpe, R., Reddy, P. J., Kolekar, R. V., Singh, Rajvir
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Clay minerals
Diagnostic Radiology
Hadrons
Heavy Ions
Hydrogen
Inorganic Chemistry
Nuclear Chemistry
Nuclear fuel cycle
Nuclear Physics
Physical Chemistry
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Summary:Down core variation of tissue free and organic bound tritium in sediment cores was evaluated to assess the retention of tritium (H-3) by bottom sediment in the dynamic marine environment of Mumbai Harbour Bay. Tissue free water tritium (TFWT) was evaluated by extraction of H-3 from the sediment by extracting it in tritium free water whereas total H-3 by alkaline digestion of core sediment sample. OBT in various core fractions was evaluated by measuring the difference between total H-3 content and TFWT. Total H-3 content in the sediment core varies in the range of 0.41–8.01 Bq g −1 whereas OBT varies between 0.1 and 0.86 Bq g −1 . Experimental results clearly indicate that total H-3 content in various fractions of the core sediment samples is dependent on the availability of exchangeable hydrogen which were either associated with clay minerals or organic molecule.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-014-3413-6