Determination of picogram amounts of uranium in micrometre-sized particles by isotope dilution mass spectrometry
| Autor: | Ronald Middendorp, Zsuzsanna Macsik, Guillaume Stadelmann, Celia Venchiarutti, A. Venzin |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
010401 analytical chemistry Radiochemistry chemistry.chemical_element Thermal ionization Proficiency test Isotope dilution Uranium Particulates 010403 inorganic & nuclear chemistry Mass spectrometry 01 natural sciences 0104 chemical sciences Analytical Chemistry Particle material chemistry Particle Spectroscopy |
| Zdroj: | Journal of Analytical Atomic Spectrometry. 36:548-560 |
| ISSN: | 1364-5544 0267-9477 |
| DOI: | 10.1039/d0ja00440e |
| Popis: | In order to improve the analytical methods used in the field of particle analysis in nuclear safeguards, monodispersed micrometre-sized particles with certified uranium isotopic composition and uranium amount per particle are highly useful. In this study, picogram amounts of uranium in particle form were quantified in a candidate particle reference material for certification. The uranium amount per particle was determined using optical microscopy combined with Isotope Dilution Thermal Ionisation Mass Spectrometry (ID-TIMS). The uranium amount was verified using Isotope Dilution Multi Collection-Inductively Coupled Plasma Mass Spectrometry (ID-MC-ICPMS). The uranium amount per particle agreed well between the two techniques within the associated uncertainties. Both techniques are suitable for quantification of picogram amounts of uranium in particulate reference materials. The uranium particle material in this study was later used in a proficiency test (NUSIMEP-9) and eventually certified for the uranium isotopic composition of particles and the uranium amount per particle. |
| Databáze: | OpenAIRE |
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