An apparatus and method for isotopic analysis of 3He/4He for controlling the extraction of 3He from natural He were designed using a commercial industrial mass spectrometer. A modernized sample-injection system allowed the sample volume of rare and expensive gases for quantitative and isotopic analyses to be reduced by 3–5 orders of magnitude. The metrological characteristics of the developed analytical method including sampling and injection into the mass spectrometer were evaluated using model analyses of individual isotopes of Ar, Ne, and He.
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Translated from Khimicheskoe i Neftegazovoe Mashinostroenie, No. 10, pp. 32–35, October, 2016.
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Kupriyanov, M.Y., Valyakina, A.V., Den’shchikov, D.S. et al. Isotopic Analysis of 3He/4He by an Industrial EMG-20-8 Mass Spectrometer with Respect to Laboratory Units for Extracting 3He from Natural Helium. Chem Petrol Eng 52, 701–706 (2017). https://doi.org/10.1007/s10556-017-0255-4
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DOI: https://doi.org/10.1007/s10556-017-0255-4