摘要
采用溶剂萃取/离子交换分离-热表面电离质谱法,对模拟1AF料液中铀钚同位素组分测定技术进行了研究。通过对化学分离条件、仪器测量参数、信号强度、各种干扰等测定条件的研究和选择,实现了铀、钚同位素组分的精密测定。在选定的条件下,测定了模拟1AF料液中的铀钚同位素,主要同位素235U和239Pu测定精密度(sr)均优于0.05%。
The precise determination of the uranium and plutonium isotopic composition in the simulated 1AF feed solution by solvent extraction/ion exchange separation-thermal ionization mass spectroscopy（TIMS） was studied in this paper.The precise determination of uranium and plutonium isotopic composition was realized by optimization of chemical separations,and minimization of possible interferences,and proper selection of instrument parameters.Under the selected conditions,the uranium and plutonium isotopic composition in the 1AF feed solution were accurately determined.The relative standard deviations of the main isotopes 235U and 239Pu are less than 0.05%.
出处
《核化学与放射化学》
CAS
CSCD
北大核心
2012年第5期305-309,共5页
Journal of Nuclear and Radiochemistry
关键词
热表面电离质谱法
1AF料液
铀
钚
同位素
thermal ionization mass spectroscopy（TIMS）
1AF feed solution
uranium
plutonium
isotopic composition
