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Method for the chromatographic separation of cations from aqueous samples

United States Patent

5,851,401
December 22, 1998
View the Complete Patent at the US Patent & Trademark Office
An extraction chromatographic material for extracting metal cations from a liquid stream. The extraction chromatographic material is prepared by adsorbing a diesterified methanediphosphonic acid on an inert particulate support.
Horwitz; E. Philip (Naperville, IL), Chiarizia; Renato (Elmhurst, IL), Dietz; Mark L. (Evanston, IL)
Eichrom Industries, Inc. (Darien, IL)
08/ 853,593
May 9, 1997
The U.S. Government has rights in this invention pursuant to Contract No. W-31-109-END-38 between the U.S. Department of Energy and Argonne National Laboratory.