质谱学报2001，Vol.22Issue(1)：7-14,8.
全蒸发技术在铀同位素丰度测量上的应用
The Application of Total Sample Evaporation Technique in Mass Spectrometric
Measurement of Uranium Isotopes
摘要
Abstract
Uranium isotope abundance ratio has been measured by total sample evaporation and signal integration, and a thermal surface ionization mass sepctrometry equipped with multicollector has been used. Total sample evaporation technique can eliminate the influence of mass fractionation, and accuracy measurement is directly achieved without calibration by isotope reference standard materials. Analysis software for total sample evaporation technique has been developed. The factors of interference measurement, such as sample size, signal intensity loss and sample residue, have been studied. Under 0.1～10 isotope ratio range and 95 % confidence, the relative expanded uncertainty of the technique is 0.10%.关键词
全蒸发技术铀同位素丰度质谱测量不确定度分类
化学化工引用本文复制引用
魏兴俭,徐新冕,张海路,华永明..全蒸发技术在铀同位素丰度测量上的应用[J].质谱学报,2001,22(1):7-14,8.
