Gd_2O_3－UO_2芯块中钆和铀含量的IDMS测定  

Determination of Gadolinium and Uranium in Gd_2O_3-UO_2 Pellets Using Isotope Dilution Mass Spectrometry

作　　者：廖祖民 张劲松[1] 吴利红[1] 

机构地区：[1]中国核动力研究设计院

出　　处：《核动力工程》1994年第4期351-356,共6页Nuclear Power Engineering

摘　　要：本文介绍了Ｇｄ２Ｏ３－ＵＯ２芯块中Ｇｄ和Ｕ含量的同位素稀释质谱法：分别用浓缩１５７Ｇｄ和２３３Ｕ作稀释剂，定量加入到芯块溶液中，然后用萃淋树脂（ＤＨＤＥＣＭＰ）萃取分离出Ｇｄ和Ｕ，用热表面电离质谱计测定。本法对Ｇｄ和Ｕ含量的测定精密度为０．７％。This paper describes determination of the Gadolinium and Uranium component in Gd_2O_3UO_2 pellets using isotope dilution mass spectrometry (IDMS).The rich 157Gd and 233U inquantity are spiked a solution of the Pellet, then Gadolinium and Uranium from the solutionare separated respectivly using DHDECMP, and they are determined by mass spectrometerwith thermal ion source. Their precisions are 0. 7%.

关 键 词：钆 铀 质谱法 核燃料 二氧化铀 

分 类 号：TL271.8[核科学技术—核燃料循环与材料]