摘要
以D_2EHPA做萃取剂,以尿素做Pu(Ⅲ)的稳定剂,建立了硝酸介质中Pu(Ⅲ)和Pu(Ⅳ)的分析方法。研究表明,尿素与硝酸混合后放置时间影响Pu(Ⅳ)的定量萃取和Pu(Ⅲ)的稳定。选择适当条件,可实现硝酸介质中Pu(Ⅲ)和Pu(Ⅳ)的测定。
In this method for the analysis of Pu(Ⅲ) and Pu(Ⅳ) in nitric acid D_2-EHPA is used as extractant and urea is used as inhibitor of nitrous acid. Thestanding time of the mixture of urea and nitric acid used as analytical mediumhas considerable influence on the extraction behaviour of Pu(Ⅳ), and thestabilization of Pu(Ⅲ) in the analytical process. Under appropriate conditions,the accurate determination of Pu(Ⅲ) and Pu(Ⅳ) can be accomplished.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
1989年第3期33-39,共7页
Atomic Energy Science and Technology
