Chemical state and isotope ratio analysis of individual uranium particles by a combination of micro-Raman spectroscopy and secondary ion mass spectrometry
| Autor: | Takumi Yomogida, Fumitaka Esaka, Masaaki Magara |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
inorganic chemicals
Isotope Isotopes of uranium Chemistry Scanning electron microscope General Chemical Engineering Physics::Medical Physics 010401 analytical chemistry Radiochemistry technology industry and agriculture General Engineering Analytical chemistry chemistry.chemical_element 02 engineering and technology Uranium 021001 nanoscience & nanotechnology complex mixtures 01 natural sciences 0104 chemical sciences Analytical Chemistry Secondary ion mass spectrometry Chemical state Particle 0210 nano-technology Spectroscopy |
| Zdroj: | Analytical Methods. 9:6261-6266 |
| ISSN: | 1759-9679 1759-9660 |
| DOI: | 10.1039/c7ay01815k |
| Popis: | An analytical procedure using micro-Raman spectroscopy (MRS) and secondary ion mass spectrometry (SIMS) was developed to elucidate both the chemical states and isotope ratios of individual micron-sized uranium particles. Each uranium particle was identified by scanning electron microscopy combined with energy dispersive X-ray detection and transferred onto each specific location on a substrate by micro-manipulation. After optimization of the analytical conditions, the chemical states of each uranium particle were determined with MRS non-destructively. The substrate containing each particle was then introduced into a SIMS instrument and uranium isotope ratios of each particle were determined. The developed method is expected to be used for clarifying the origin and history of each particle in environmental samples. |
| Databáze: | OpenAIRE |
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