发明名称 |
Method for isolating and purifying 90Y From 90strontium in multi-curie quantities |
摘要 |
The invention relates to a process for separating and purifying multi-curie quantities 90Y of sufficient chemical and radiochemical purity suitable for use in medical applications without a series of 90Sr selective extraction chromatographic columns while minimizing loss of radioactive 90Sr parent and waste stream. The process includes dissolving a nitrate salt of an original 90Sr stock solution in H2O creating a strontium nitrate solution; acidifying the strontium nitrate solution containing 90Y with concentrated nitric acid; evaporating the strontium nitrate solution; filtering or centrifuging strontium nitrate solution to separate crystalline 90Sr nitrate salt from the solution; evaporating the remaining 90Y enriched supernate to dryness; dissolving the remaining 90Y 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.
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申请公布号 |
US6309614(B1) |
申请公布日期 |
2001.10.30 |
申请号 |
US20000549871 |
申请日期 |
2000.04.14 |
申请人 |
PG RESEARCH FOUNDATION, INC. |
发明人 |
HORWITZ E. PHILIP;HINES JOHN J. |
分类号 |
G01N30/06;B01D11/04;B01D59/26;B01J20/281;C22B3/42;C22B3/44;C22B26/20;C22B59/00;G01N30/88;G21F9/00;(IPC1-7):C01F17/00 |
主分类号 |
G01N30/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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