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Methodological Study on AMS Measurement of U Isotope Ratios in Nanogram U Samples

DONG Ke-jun  WANG Chen  HE Ming  LIN De-yu  ZHAO Xing-hong  LI Li-li  ZHAO Yong-gang  WANG Xiang-gao  SHEN Hong-tao  DOU Liang  XIE Lin-bo  YIN Xin-yi  WU Shao-yong  YOU Qu-bo  JIANG Shan  
【摘要】:正Three laboratory reference standards of UBT-030,UBT-070,UBT-750 and a flow blank(FBlank)were used as test samples for the first AMS measurement of isotopic ratios in nanogram level uranium samples.The results of~(234,235,236)/~(238)U obtained by absolute

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