Specific activity and isotope abundances of strontium in purified strontium-82
| Autor: | Dmitri Medvedev, Jonathan Fitzsimmons, Leonard F. Mausner |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Strontium
Proton Isotope Chemistry Radiochemistry Ion chromatography chemistry.chemical_element Rubidium chloride 010403 inorganic & nuclear chemistry 01 natural sciences 030218 nuclear medicine & medical imaging 0104 chemical sciences Analytical Chemistry 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Abundance (ecology) Specific activity Irradiation Spectroscopy |
| Zdroj: | Journal of Analytical Atomic Spectrometry. 31:458-463 |
| ISSN: | 1364-5544 0267-9477 |
| Popis: | A linear accelerator was used to irradiate a rubidium chloride target with protons to produce strontium-82 (Sr-82), and the Sr-82 was purified by ion exchange chromatography. The amount of strontium associated with the purified Sr-82 was determined by either: ICP-OES or method B which consisted of a summation of strontium quantified by gamma spectroscopy and ICP-MS. The summation method agreed within 10% to the ICP-OES for the total mass of strontium and the subsequent specific activities were determined to be 0.25–0.52 TBq mg−1. Method B was used to determine the isotope abundances by weight% of the purified Sr-82, and the abundances were: Sr-82 (10–20.7%), Sr-83 (0–0.05%), Sr-84 (35–48.5%), Sr-85 (16–25%), Sr-86 (12.5–23%), Sr-87 (0%), and Sr-88 (0–10%). The purified strontium contained mass amounts of Sr-82, Sr-84, Sr-85, Sr-86, and Sr-88 in abundances not associated with natural abundance, and 90% of the strontium was produced by the proton irradiation. A comparison of ICP-OES and method B for the analysis of Sr-82 indicated analysis by ICP-OES would be easier to determine total mass of strontium and comply with regulatory requirements. An ICP-OES analytical method for Sr-82 analysis was established and validated according to regulatory guidelines. |
| Databáze: | OpenAIRE |
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