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%.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
1992年第1期80-84,共5页
Atomic Energy Science and Technology
