%0 Journal Article
%T The isotopic abundance and atomic weight of natural uranium<br>
%A Yongfu Liu
%A Shuchun Fu
%A <br>
%J 科学通报(英文版)
%D 1997
%I 
%X Conclusion The published measurement data of atomic weight of uranium are shown in table 49]. The best results are those measured by Smith and Cowanet al. A r (U) = 238.028 79–238.028 90(3), their result error being ISD. The evaluated value of IUPAC-CAWIA is Ar(U)=238.028 9(1). In this work, the result is Ar(U) = 238.028 91(4). The combined uncertainty has been given according to 2SD of the measurement data through the calibration of a series of standard materials of uranium isotopes. It is reasonable to conclude that in this work the uncertainty which characterizes the measurement quality is better than other published data.
%K isotopic abundance of uranium
%K atomic weight of uranium
%K mass spectrometric measurement<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=D8B7A254DC8F6F2C428BC1BA5BD39941&yid=5370399DC954B911&vid=ECE8E54D6034F642&iid=F3090AE9B60B7ED1&sid=725C082EB6FD280F&eid=725C082EB6FD280F&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=0&reference_num=9