硫酸锰中微量Gd,Sm,Dy,Eu的离子交换分离ICP-AES测定  

DETERMINATION OF TRACE Gd, Sm, Dy AND Eu IN MnSO_4 BY ICP-AES AFTER SEPARATION WITH CATION EXCHANGE METHOD

作　　者：关景素 姬俊英[1] 高炳华[1] 刘英梅 

机构地区：[1]中国原子能科学研究院,北京102413

出　　处：《原子能科学技术》1992年第1期80-84,共5页Atomic Energy Science and Technology

摘　　要：一、前言在用锰浴法绝对测量放射性中子源(Am-Be)的强度中,为了准确计算中子源的强度,需要对硫酸锰中热中子吸收截面较大的Gd,Sm,Dy和Eu等稀土元素的含量进行测定。A method for determination of trace Gd, Sin, Dy, Eu in MnSO_4 is described. The manganese is separated from rare earth elements by cation exchange resin with 2 mol/l HCl as eluent. The concentration of rare earths is determined by ICP-AES. With a sample of 50mg , the determination limit of Gd, Sm is 0.4×10^(-6), Dy, Eu is 0.08×10^(-6), the recovery is in the range of 88%～105%, the relative standard deviation (RSD) is less than 11%.

关 键 词：稀土元素 ICP-AES 锰 中子源 强度 

分 类 号：TL375[核科学技术—核技术及应用]