| Autor: | L. M. Di Tada, Pavel P. Povinec, Sang-Han Lee, Janine Gastaud, Paul Hausladen, Eric Wyse, L. Liong Wee Kwong, J. La Rosa, Guaciara M. Santos, L.K. Fifield |
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| Rok vydání: | 2001 |
| Předmět: |
Radionuclide
Health Toxicology and Mutagenesis Radiochemistry Liquid scintillation counting Public Health Environmental and Occupational Health chemistry.chemical_element Mass spectrometry Pollution Analytical Chemistry Plutonium Nuclear reprocessing Nuclear Energy and Engineering chemistry Radiology Nuclear Medicine and imaging Analytical procedures Inductively coupled plasma mass spectrometry Spectroscopy Accelerator mass spectrometry |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. 248:757-764 |
| ISSN: | 0236-5731 |
| DOI: | 10.1023/a:1010609215926 |
| Popis: | IAEA reference materials (radionuclides in the marine environment) collected in areas affected by nuclear reprocessing plants and nuclear weapons tests have been analysed by semiconductor alpha-spectrometry (SAS), liquid scintillation spectrometry (LSS) and mass spectrometric techniques (high resolution ICP-MS and AMS) with the aim of developing analytical procedures and to study the geochemical behavior of plutonium in the marine environment. The Pu results obtained by SAS, ICP-MS and AMS were in reasonably good agreement (R 2 = 0.99). The mean atom ratios of 240Pu/239Pu in IAEA reference materials, IAEA-134, 135 and 381 were (0.212±0.010), (0.211±0.004) and (0.242±0.004), respectively. IAEA-384 (Fangataufa Lagoon Sediment) gave a 240Pu/239Pu mean atom ratio of 0.051±0.001. The results of 241Pu obtained by ICP-MS and LSS also show reasonable agreement (R 2 = 0.91). Pu isotopic signatures were useful in tracing Pu origin and in interpreting biogeochemical processes involving Pu in the marine environment. |
| Databáze: | OpenAIRE |
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