摘要
本文选用水溶性比TBP小30倍而对钍、铀分离效率高的P350为萃取色层的固定相和对有机萃取剂吸附容量大、传质速度快的新型大孔吸附树脂x-5(聚二乙烯苯)为支持体,以含15%HNO和15%NHNO(或7%Al(NO))及2%酒石酸的混合液为铀、钍上柱液,采用5N HCl及0.2%NaF分别解脱钍和铀,分光光度法分别测定之。
Dimethylheptyl methylphosphonate (P350) was used as a stationary phase for concentrating uranium and thorium. The behaviour of Kel-F, silica gel etc as supporter were tested. A solution containing 15%HNO_(3), 15%NK4NO_(3) [or 7% Al(NO_(3))_(3)] and 2% tartaric acid of D and Th is used for column sorption. Th and U were separated by elution of 5N HC1 and 0.2% NaF respectively. The chromatographic column could be used more than 80 times.
出处
《岩矿测试》
CAS
1984年第2期176-178,共3页
Rock and Mineral Analysis
