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Optimization of the double isotope dilution

Abstract : The double isotope dilution is a powerful methodology to measure accurately the ratio between two isotopes of two different elements (e.g. 238Pu/238U, 148Nd/238U or 230Th/238U ratios). To obtain the lowest possible uncertainty, some parameters must be optimized: the elaboration of the spike and the proportion of the spike in the sample - spike mixture. A piece of code is provided to easily calculate the optimal parameters. As an example, the application of the code to 238Pu/238U and 148Nd/238U ratios determination in irradiated sample will be discussed.
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Submitted on : Wednesday, December 8, 2021 - 4:30:05 PM
Last modification on : Friday, December 10, 2021 - 3:50:43 AM
Long-term archiving on: : Wednesday, March 9, 2022 - 7:03:06 PM

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Alexandre Quemet, Sarah Baghdadi. Optimization of the double isotope dilution. Journal of Analytical Atomic Spectrometry, Royal Society of Chemistry, 2021, pp.10.1039/D1JA00322D. ⟨10.1039/D1JA00322D⟩. ⟨cea-03471078⟩

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