Neutron activation analysis of6Li isotopic abundance using a low background liquid scintillation counter |
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| Authors: | Y Yamada K Yasuike M Itoh N Kiriyama K Komura K Ueno |
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| Institution: | (1) Department of Radiopharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Hokuriku University, Kanagawa-machi, 920-11 Kanazawa, Japan;(2) Department of Environmental Radiation, Ishikawa Prefectural Institute of Public Health and Environmental Science, Taiyogaoka 1-11, 920-11 Kanazawa, Japan;(3) Low Level Radioactivity Laboratory, Kanazawa University, Tatsunokuchi-machi, 923-12 Ishikawa, Japan |
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| Abstract: | A neutron activation method based on the measurement of tritium radioactivity produced by6Li (n, )3H reaction was applied to determine the isotopic abundance of6Li in aqueous solution with known lithium concentration. Tritium radioactivity was measured with a low background liquid scintillation counter over a period of 2000 min. The present method demonstrated a good linearity between the isotopic abundance of6Li and tritium radioactivity produced per unit amount of lithium in a wide range of lithium concentration. A comparison of the present data with those from mass spectrometry showed agreement, though our method was 10 times less sensitive, than mass spectrometry. The present new approach should thus prove quite useful for determining the isotopic abundance of6Li. |
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