摘要
应用自行研制的ＦＩＡ－铀、钚、镎分析仪，以偶氮胂Ⅲ作显色剂，ＤＣＴＡ作掩蔽剂，氯乙酸－氯乙酸钠作缓冲液，建立了微量铀的测定方法。铀的检测限为１ｍｇ／Ｌ。精密度好于３％。一次测定耗时４０ｓ。本方法已用于中国原子能科学研究院高放废液及含钚废水中铀的测定并能直接测定后处理工艺过程中某些分析点的铀含量。
A method for determination of uranium is described.This method is one of the three methods for determination of U,Pu,Np by FIA.In the case, azoarseno Ⅲ, DCTA(1,2 diaminocyclohexanetriacetic acid )chloroacetic acid and its sodium salt are used as developer,masking agent and buffer agent,respectively. Determination limit for uranium is 1 mg/L,the precision is better than 3%.One operation of analysis needs 40 s,the method can be used in many controlling analysis points in reprocessing plant.The uranium in the high level radioactive liquid waste from China Institute of Atomic Energy (CIAE) is determined by this method.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
1997年第6期513-518,共6页
Atomic Energy Science and Technology
