Extraction chromatographic separation of carrier-free Y-90 from Sr-90/Y-90 generator by crown ether coated silica gels

被引：24
|
作者：
Chuang, JT
Lo, JG
机构：
[1] Department of Nuclear Science, National Tsing Hua University
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES | 1996年 / 204卷 / 01期
关键词：
D O I：
10.1007/BF02060869
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A remarkable extraction chromatographic method for the preparation of Y-90 of high radiochemical purity has been developed. The generator consists of silica gel coated crown ether. It functions as a strong adsorber for Sr-90 and in the meantime high purity of Y-90 is eluted with a dilute solution of picric acid after a suitable period. The experiments indicated that DC18C6 coated silica gel is better than that of DB18C6 coated. The extraction capacity of strontium on 3.8% DC18C6 coated silica gel is 5.6 mg Sr/g silica gel. Yttrium is obtained with more than 95% milking yield with radionuclide purity greater than 99.9%. The extraction chromatographic generator does not change its characteristics even after 5 elutions.
引用
收藏
页码：83 / 93
页数：11
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