Original document(14 pages) Authorized document(14 pages) 中文版
    The invention relates to a process for separating and purifying multi-curie quantities <90>Y of sufficient chemical and radiochemical purity suitable for use in medical applications without a series of <90>Sr selective extraction chromatographic columns while minimizing loss of radioactive <90>Sr parent and waste stream. The process includes dissolving a nitrate salt of an original <90>Sr stock solution in H2O creating a strontium nitrate solution; acidifying the strontium nitrate solution containing <90>Y with concentrated nitric acid; evaporating the strontium nitrate solution; filtering or centrifuging strontium nitrate solution to separate crystalline <90>Sr nitrate salt from the solution; evaporating the remaining <90>Y enriched supernate to dryness; dissolving the remaining <90>Y enriched supernate in a strong acid; passing the solution through an yttrium selective extraction chromatographic column; rinsing the yttrium selective extraction chromatographic column with strong acid; and eluting yttrium from yttrium selective extraction column with strong acid.
Application Number
申请号		 01809418 Application Date
申请日		 2001.04.13
Title 名称 Method for isolating and purifying 90Y from 90 strontium in multi-curie quantities
Publication Number
公开号		 1429391 Publication Date
公开日		 2003.07.09
Approval Pub. Date 2005.08.10 Granted Pub. Date 2005.08.10
International Classification 分类号 G21F9/00;G21G4/08
Applicant(s) Name
申请人		 PG Research Foundation Inc.
Address 地址
Inventor(s) Name 发明人 E.P. Horwitz;J.J. Hines
Attorney & Agent 代理人 ren zonghua
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