Hyphenation of capillary electrophoresis with MC-ICP-MS – A novel tool for uranium age dating
| Autor: | Erwan Dupuis, Charles Evette, Frédéric Chartier, Hélène Isnard |
|---|---|
| Přispěvatelé: | Service d'études analytiques et de réactivité des surfaces (SEARS), Département de Physico-Chimie (DPC), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, CEA- Saclay (CEA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA) |
| Rok vydání: | 2020 |
| Předmět: |
Chromatography
Mc icp ms Nuclear forensics 010401 analytical chemistry Thorium chemistry.chemical_element 02 engineering and technology Isotope dilution Uranium 021001 nanoscience & nanotechnology Enriched uranium 01 natural sciences 0104 chemical sciences Analytical Chemistry Capillary electrophoresis chemistry [CHIM]Chemical Sciences 0210 nano-technology Inductively coupled plasma mass spectrometry |
| Zdroj: | Talanta Talanta, 2020, 219, pp.121345. ⟨10.1016/j.talanta.2020.121345⟩ Talanta, Elsevier, 2020, 219, pp.121345-. ⟨10.1016/j.talanta.2020.121345⟩ |
| ISSN: | 0039-9140 |
| Popis: | International audience; Capillary electrophoresis (CE) was hyphenated to multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) to determine the model age of a highly enriched uranium (HEU) sample using the $^{234}$U/$^{230}$Th radiochronometer. The use of hydroxymethylbutyric acid (HMBA) as the CE electrolyte was investigated, and a complexation stacking method was developed to increase the thorium signal obtained. The age of the material was determined by measuring the 230Th content of the HEU sample using isotope dilution in conjunction with the CE-MC-ICP-MS protocol. The CE-MC-ICP-MS protocol and a standard offline protocol using gravitational chromatography both gave results in accordance within uncertainties with the production date of the HEU sample (March 1965). Liquid waste production was only of a few microliters with the use of CE. The hyphenation of CE with MC-ICP-MS render the measurement of the age of the HEU material in less than one day possible. Obtaining results in a timely fashion is of particular importance for nuclear forensics studies. |
| Databáze: | OpenAIRE |
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