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Gas-phase molybdenum-99 separation from uranium dioxide by fluoride volatility using nitrogen trifluoride
Production of the important (99m)Tc medical isotope parent, molybdenum-99 ((99)Mo), via the fissioning of high- and low-enriched uranium (HEU/LEU) targets followed by target dissolution in acid and solution-phase purification of (99)Mo is time-consuming, generates quantities of corrosive radioactive...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9048791/ https://www.ncbi.nlm.nih.gov/pubmed/35497761 http://dx.doi.org/10.1039/c9ra10270a |
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author | McNamara, Bruce K. O'Hara, Matthew J. Clark, Richard A. Morrison, Samuel S. Soderquist, Chuck Z. Scheele, Randall D. |
author_facet | McNamara, Bruce K. O'Hara, Matthew J. Clark, Richard A. Morrison, Samuel S. Soderquist, Chuck Z. Scheele, Randall D. |
author_sort | McNamara, Bruce K. |
collection | PubMed |
description | Production of the important (99m)Tc medical isotope parent, molybdenum-99 ((99)Mo), via the fissioning of high- and low-enriched uranium (HEU/LEU) targets followed by target dissolution in acid and solution-phase purification of (99)Mo is time-consuming, generates quantities of corrosive radioactive waste, and can result in the release of an array of radionuclides to the atmosphere. An alternative (99)Mo purification method has been devised that has the potential to alleviate many of these issues. Herein, we demonstrate the feasibility of a rapid Mo/Tc gas-phase separation from UO(2). The results indicate that volatile [(99)Mo]Mo can be captured downstream of the reacted solid mixture on a column bed (trap) of alumina; the majority of the captured [(99)Mo]Mo can be subsequently eluted from the alumina trap with a few milliliters of water. >1.0 × 10(5) single pass decontamination of U and the collected [(99)Mo]Mo product is demonstrated. This simple thermo-fluorination technique has the potential to provide a rapid methodology for routine (99)Mo production. |
format | Online Article Text |
id | pubmed-9048791 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90487912022-04-28 Gas-phase molybdenum-99 separation from uranium dioxide by fluoride volatility using nitrogen trifluoride McNamara, Bruce K. O'Hara, Matthew J. Clark, Richard A. Morrison, Samuel S. Soderquist, Chuck Z. Scheele, Randall D. RSC Adv Chemistry Production of the important (99m)Tc medical isotope parent, molybdenum-99 ((99)Mo), via the fissioning of high- and low-enriched uranium (HEU/LEU) targets followed by target dissolution in acid and solution-phase purification of (99)Mo is time-consuming, generates quantities of corrosive radioactive waste, and can result in the release of an array of radionuclides to the atmosphere. An alternative (99)Mo purification method has been devised that has the potential to alleviate many of these issues. Herein, we demonstrate the feasibility of a rapid Mo/Tc gas-phase separation from UO(2). The results indicate that volatile [(99)Mo]Mo can be captured downstream of the reacted solid mixture on a column bed (trap) of alumina; the majority of the captured [(99)Mo]Mo can be subsequently eluted from the alumina trap with a few milliliters of water. >1.0 × 10(5) single pass decontamination of U and the collected [(99)Mo]Mo product is demonstrated. This simple thermo-fluorination technique has the potential to provide a rapid methodology for routine (99)Mo production. The Royal Society of Chemistry 2020-01-21 /pmc/articles/PMC9048791/ /pubmed/35497761 http://dx.doi.org/10.1039/c9ra10270a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/ |
spellingShingle | Chemistry McNamara, Bruce K. O'Hara, Matthew J. Clark, Richard A. Morrison, Samuel S. Soderquist, Chuck Z. Scheele, Randall D. Gas-phase molybdenum-99 separation from uranium dioxide by fluoride volatility using nitrogen trifluoride |
title | Gas-phase molybdenum-99 separation from uranium dioxide by fluoride volatility using nitrogen trifluoride |
title_full | Gas-phase molybdenum-99 separation from uranium dioxide by fluoride volatility using nitrogen trifluoride |
title_fullStr | Gas-phase molybdenum-99 separation from uranium dioxide by fluoride volatility using nitrogen trifluoride |
title_full_unstemmed | Gas-phase molybdenum-99 separation from uranium dioxide by fluoride volatility using nitrogen trifluoride |
title_short | Gas-phase molybdenum-99 separation from uranium dioxide by fluoride volatility using nitrogen trifluoride |
title_sort | gas-phase molybdenum-99 separation from uranium dioxide by fluoride volatility using nitrogen trifluoride |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9048791/ https://www.ncbi.nlm.nih.gov/pubmed/35497761 http://dx.doi.org/10.1039/c9ra10270a |
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