University of Missouri

Steven Symes

Gary J Ehrhardt

Kurt R Zinn

Robert K Guimon

A method and a generator for separating daughter radioisotope from a stock solution containing the daughter radioisotope and its parent are provided. The generator is provided with a glass adsorbent which preferentially adsorbs daughter radioisotope relative to the parent radioisotope and circulation means for withdrawing the stock solution from a reservoir, contacting the solution with the glass adsorbent to adsorb the daughter radioisotope and returning the parent radioisotope-enriched solution to the reservoir. In the process stock solution containing daughter radioisotope having a predetermined pH is contacted with the glass adsorbent to selectively adsorb the daughter radioisotope thereon and the daughter radioisotope is eluted with an eluant at a second predetermined pH. The process also includes a step of washing the glass adsorbent with a wash solution at the first predetermined pH to remove traces of the parent radioisotope from the adsorbent prior to eluting the daughter radioiotope. In the process the first predetermined pH is in the range of from 4.0 to 10.0 and the second predetermined pH is less than 4. Daughter radioisotopes such as Y-90, Ga-68 and Ca-47 can be separated from their parents using these process and generator.

Growing community of inventors

Town & Country, MO, United States of America

Steven Symes