Depth-wise core sediment profile of tissue free and organic bound tritium in dynamic marine environment
| Autor: | Ashok Kumar, S. P. D. Bhade, Rajvir Singh, Hirakendu Basu, Rakesh Kumar Singhal, Rupali Karpe, Priyanka J. Reddy, R.V. Kolekar |
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| Rok vydání: | 2014 |
| Předmět: |
Hydrogen
Health Toxicology and Mutagenesis Extraction (chemistry) Public Health Environmental and Occupational Health chemistry.chemical_element Sediment Pollution Analytical Chemistry Core (optical fiber) Nuclear Energy and Engineering chemistry Environmental chemistry Free water Radiology Nuclear Medicine and imaging Tritium Clay minerals Bay Spectroscopy |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. 303:845-851 |
| ISSN: | 1588-2780 0236-5731 |
| DOI: | 10.1007/s10967-014-3413-6 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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