A comparison of two calibration methods of the 229Th spike for uranium age dating by 230Th/234U radiochronometer

被引：0
|
作者：
Yan Chen
Yong-Gang Zhao
Li-Li Li
Zhi-Yuan Chang
Liu-Chao Zhu
Guo-Ping Xiao
Sheng-Hui Huang
机构：
[1] China Institute of Atomic Energy,Department of Radiochemistry
[2] CNEC High Temperature Reactor Holdings Co.,undefined
[3] LTD,undefined
来源：
Journal of Radioanalytical and Nuclear Chemistry | 2017年 / 314卷
关键词：
Uranium age; Th spike; Calibration; ICP-MS;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
230Th/234U radiochronometer was commonly used for uranium age determination which could help to reveal the origin of the nuclear material. 229Th was a relatively appropriate spike for measuring 230Th by isotope dilution mass spectrometry and its concentration needs to be calibrated before using as spike. A prepared 229Th solution which was used as Th isotope spike for age dating of CRM U850 sample were calibrated separately by 232Th and 230Th standard materials. The calibrated results were compared and evaluated.
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页码：499 / 505
页数：6
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