Analysis of U and Th in soils and sediments B—Why do we sometimes get the WRONG RESULT?
| Autor: | William R. Kelly, D. S. Popplewell, Kenneth G. W. Inn, Melvin S. Feiner, Chih-An Huh, P. W. Krey, A. Norris, J. M. Robin Hutchinson, E. Fisenne, Donald R. Percival, Thomas M. Beasley, Robert R. Greenberg, Ernest S. Gladney |
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| Rok vydání: | 2015 |
| Předmět: |
Radionuclide
Chemistry Health Toxicology and Mutagenesis 010401 analytical chemistry Public Health Environmental and Occupational Health Geochemistry chemistry.chemical_element Mineralogy Uranium 010403 inorganic & nuclear chemistry complex mixtures 01 natural sciences Pollution 0104 chemical sciences Analytical Chemistry Nuclear Energy and Engineering Soil water Radiology Nuclear Medicine and imaging Spectroscopy Zircon |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. 307:2513-2520 |
| ISSN: | 1588-2780 0236-5731 |
| Popis: | In 1978, the National Bureau of Standards began a program to develop environmental-level natural matrix radionuclide Standard Reference Materials for the evaluation of analytical methods. A customer reported a −15 % difference between their value and the certified uranium massic concentration in SRM 4353 (Rocky Flats Soil B I). This report prompted an investigation using several independent methods to confirm the certified uranium value. Investigation indicated the discrepancy to be due to a highly insoluble minor mineral fraction that contained high concentrations of uranium. The suspect mineral, zircon, is widespread in soils and sediments and represents an analytical complication. |
| Databáze: | OpenAIRE |
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