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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 5368736 B1

PDFFull Text
Date of Patent:
Nov. 29, 1994

Filed:

Jul. 26, 1993

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

Applicant:
Inventors:

Philip E Horwitz, Naperville, IL (US);

Mark L Dietz, Evanston, IL (US);

Assignee:

The United States of America as represented by the United States, , US;

Attorneys:

Dvorscak; Mark P.

Fisher; Robert J.

Moser; William R.

Primary Examiner:

Ernest G Therkorn

Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210635 ; 210656 ; 423-2 ; 423 211 ; 423 215 ; 423155 ; 423157 ;
Abstract

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.

Find Patent Forward Citations

Horwitz, Philip. (1994). Process for the separation and purification of yttrium-90 for medical (U.S. Patent No. 5368736). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5368736

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