高频电感耦合等离子体原子发射光谱法测定可燃毒物(Gd,U)O_2中微量元素  

Chemical Atomic Emission Spectrometric Determination of 12 Elementsof Micro-Amounts in(Gd,U)O_2 Chips

作　　者：侯列奇[1] 李洁[1] 盛红伍[1] 王树安[1] 卢菊生[1] 

机构地区：[1]中国核动力研究设计院核燃料及材料国家重点实验室,成都610005

出　　处：《理化检验（化学分册）》2007年第7期547-548,551,共3页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

摘　　要：采用磷酸三丁酯-聚偏氟乙烯粉反相分配色层分离铀与铝、钙、钴、铬、铁、镁、锰、钼、镍、锡、钛及钒12种微量元素，高频电感耦合等离子体原子发射光谱法测定可燃毒物（Gd，U）O2中微量元素。取样100mg时，测定范围在20-800μg·g^-1之间。方法回收率在94．0％～110％之间，相对标准偏差（n=6）在4．6％～9．2％之间。Microamounts of Al, Ca, Cr, Fe, Mg, Mo, Ni and Ti in （Gd,U）O2 chip were separated from the matrix uranium by reverse-phase partition chromatography on column packed with tributylphosphate- polyfluoroethylene. Ions of the 12 element in the eluate from the column were determined by ICP-AES. Range of determination was from 20 to 800 μg · g^-1 on the base of 100 mg of sample. Precision and recovery were tested and the values found were in the ranges of （RSD＇s） 4. 6%-9.2% and 93%-110% respectively.

关 键 词：ICP-AES (Gd U)O2芯块 杂质元素 分配色谱 

分 类 号：O657.31[理学—分析化学]