等离子体质谱法测量铀同位素丰度方法研究

• 作 者: 李金英 刘峻岭 赵立飞 苏玉兰 贾锦蕾 张彦重
• 机 构: 中国原子能科学研究院!北京102413,中国原子能科学研究院!北京102413,中国原子能科学研究院!北京102413,中国原子能科学研究院!北京102413,中国原子能科学研究院!北京102413,
• 出 处: 质谱学报
• 发表日期: 1999年Z1期
• 关键词: 等离子体质谱法 丰度比 铀同位素 质量歧视 四极杆 仪器工作参数 辅助气流量 同位素比 离子源 γ能谱

A method for The determination of uranium isotope ratio with inductive Coupled Plasma Mass Spectrometry (ICP-MS) has been developed. Operating parameters were optimized. Dead time and mass bias were corrected so that the precision of isotope ratio has been improved obviously. The accuracy of the isotope ratio of low concentration uranium samples measured by this method agrees with that of TIMS within 0.5% uncertainties.

A method for The determination of uranium isotope ratio with inductively coupled plasma mass spectrometry (ICP-MS) has been developed. Dead time and mass bias were corrected so that the precision of isotope ratio has been improved obviously. The accuracy of the isotope ratio of low concentration uranium samples measured by this method agrees with that of TIMS within 0.5% uncertainties.