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U.S. Department of Energy
Office of Scientific and Technical Information

Process for the separation and purification of yttrium-90 for medical applications

Patent ·
OSTI ID:6649133

An extraction chromatographic method for the preparation of [sup 90]Y of high chemical and radiochemical purity is disclosed. After an initial purification of a [sup 90]Sr stock solution and a suitable period of [sup 90]Y ingrowth, the solution is passed through a series of strontium-selective chromatographic columns, each of which lowers the [sup 90]Sr content of the mixture by a factor of about 10[sup 3]. The [sup 90]Y remaining is freed from any residual [sup 90]Sr, from its [sup 90]Zr daughter, and from any remaining impurities by passing the sample through a final column designed to selectively retain yttrium. 5 figures.

DOE Contract Number:
W-31109-ENG-38
Assignee:
Dept. of Energy, Washington, DC (United States)
Patent Number(s):
US 5368736; A
Application Number:
PPN: US 8-095555
OSTI ID:
6649133
Country of Publication:
United States
Language:
English