Sorption of uranium on freshly prepared hydrous titanium oxide and its utilization in determination of 236U using accelerator mass spectrometry
| Autor: | Gönül Keçeli, I. Špendlíková, M. Němec, Peter Steier |
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| Rok vydání: | 2016 |
| Předmět: |
inorganic chemicals
Materials science Health Toxicology and Mutagenesis Inorganic chemistry Oxide chemistry.chemical_element 010403 inorganic & nuclear chemistry complex mixtures 01 natural sciences Analytical Chemistry chemistry.chemical_compound Uranium oxide Radiology Nuclear Medicine and imaging Spectroscopy Aqueous solution 010401 analytical chemistry technology industry and agriculture Public Health Environmental and Occupational Health Sorption Uranium Pollution 0104 chemical sciences Titanium oxide Nuclear Energy and Engineering chemistry Titanium dioxide Accelerator mass spectrometry Nuclear chemistry |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. 311:447-453 |
| ISSN: | 1588-2780 0236-5731 |
| DOI: | 10.1007/s10967-016-5013-0 |
| Popis: | The determination of 236U with accelerator mass spectrometry (AMS) requires efficient separation methods with high concentration factors. The article proposes an alternative method of uranium separation from aqueous solutions to commonly used iron co-precipitation. This “homogeneous precipitation” is based on unique properties of fresh hydrous titanium oxide, prepared by hydrolysis of its organic precursor—tetra-n-butylorthotitanate—directly in the aqueous sample solution. Besides high uranium uptake, the results shows very promising properties of this uranium-titanium oxide precipitate for 236U-AMS measurements providing up to 4 times higher negative ion yield comparing with common uranium oxide matrix. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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