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PROCÉDÉ DE PRÉPARATION D'ISOTOPE
专利权人:
BAYER AS
发明人:
申请号:
EP11719186.6
公开号:
EP2564396B1
申请日:
2011.04.29
申请国别(地区):
EP
年份:
2015
代理人:
摘要:
The present invention provides 223 Ra comprising no more than 0.05 Bq 227 Ac per 1MBq 223 Ra. The 223 Ra may be formed or formable by a method comprising: i) preparing a generator mixture comprising 227 Ac, 227 Th and 223 Ra; ii) loading said generator mixture onto a strong base anion exchange resin; iii) eluting said 223 Ra from said strong base anion exchange resin using a first mineral acid in an alcoholic aqueous solution to give a first eluted 223 Ra solution; iv) loading the 223 Ra of the first eluted 223 Ra solution onto a strong acid cation exchange resin; and v) eluting the 223 Ra from said strong acid cation exchange resin using a second mineral acid in aqueous solution to provide a second eluted solution.
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中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/
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