摘要
采用阳离子交换法分离Ac/Ra,在AG50W-X8树脂中使用檬酸为载带剂,HNO3为浓度梯度洗脱剂,对228Ra标准溶液中的228Ac/228Ra和稳定的Ba/La混合标准溶液进行分离实验。结果表明:在HNO3浓度为3mol/L时,可分离洗脱Ra,且其洗脱率可达到90%以上;在HNO3浓度为6mol/L时,可分离洗脱Ac,且其洗脱率可达95%。同时,在HNO3浓度为3 mol/L时,Ba的洗脱率可以达到100%;在HNO3浓度为6mol/L时,La的洗脱率只达到85%。
In order to separate Ac/Ra by cationic exchange method,use citric acid as the carrier in AG50W-X8 resin,HNO3 as the concentration gradient eluent,and the separation experiment of 228Ac/228Ra in the 228Ra standard solution and the stable Ba/La mixed standard solution is carried out.The results showed that when the concentration of HNO3 was 3 mol/L,Ra was separated and eluted,and its elution rate reached more than 90%;when the concentration of HNO3 was 6 mol/L,Ac was separated and eluted,and its elution rate was up to 95%.At the same time,when the HNO3 concentration was 3 mol/L,the elution rate of Ba could reach 100%;when the HNO3 concentration was 6 mol/L,the elution rate of La only reached 85%.
作者
龚籽月
於国兵
闻德运
顾先宝
许丰
陈军
杨晓冉
盛六四
刘付轶
GONG Zi-yue;YU Guo-bing;WEN De-yun;GU Xian-bao;XU Feng;CHEN Jun;YANG Xiao-ran;SHENG Liu-si;LIU Fu-yi(University of Science and Technology of China,Hefei230027,China;Anhui Environmental Radiation Supervision Station,Hefei 230071,China;Anhui University,Hefei 230601,China;Anhui Environmental Supervision Center Station,Hefei 230071,China)
出处
《核电子学与探测技术》
CAS
北大核心
2021年第1期121-125,共5页
Nuclear Electronics & Detection Technology
基金
项目名称国家自然科学基金(11575178)资助
国家自然科学基金(U2032155)资助。
