从氘束照射后的^(186)W靶中分离无载体^(186)Re  

SEPARATION OF CARRIER FREE ^(186)Re FROM ^(186)WIRRADIATED BY DEUTERON

作　　者：张晓东[1] 李晴暖[1] 李文新[1] 沈水法[1] 盛荣 胡伟青[1] 

机构地区：[1]中国科学院上海原子核研究所,上海201800 [2]浙江大学湖滨校区药学系,浙江杭州310031

出　　处：《核化学与放射化学》2000年第1期62-64,共3页Journal of Nuclear and Radiochemistry

基　　金：国家自然科学基金资助项目!(2 96 710 33);国家攀登计划(B)资助项目!(85 45 0 2 1 2 )

摘　　要：以18 8 Re为示踪剂测定了N 2 35对铼酸根的萃取曲线 ,及硝酸溶液和氨水溶液的反萃曲线 ,获得了萃取分离的最佳条件。采用酸性Al2 O3柱和萃取方法联用的放化分离流程 ,成功地将无载体186 Re从氘束照射过的186 W同位素靶中分离出来 ,并经蒸干、灼烧等处理 ,最终制成了可供标记用的无载体186 Re生理盐水溶液。186 Re的总放化回收率约 85%。By using 188 Re as a tracer, the extraction behavior of Re with N 235 in dimethylbenzene is studied. A chemical separation procedure,which consists of the elution from the acid alumina column and the liquid liquid extraction with N 235 in dimethylbenzene is established. The procedure is rapidly and efficiently used for the separation of 186 Re from 186 W irradiated by 16 MeV deuterons.Carrier free 186 ReO 4 - saline solution with high radioactive concentration is obtained, and no radioactive impurities of 187 W and 183 Ta are found. The overall recovery yield of 186 Re is about 85 %.

关 键 词：分离提取 加速器生产 无载体铼 钨同位素靶 

分 类 号：TL921.1[核科学技术—核燃料循环与材料] O614.713[理学—无机化学]