Ut-battelle, Inc.

Lockheed Martin Energy Research Coirporation

Arnold L Beets

Furn F Knapp, Jr

Saed Mirzadeh

Miting Du

Stefan Guhlke

A new composition of matter includes Pt characterized by a specific activity of at least 30 mCi/mg Pt, generally made by method that includes the steps of: exposing Ir to a flux of neutrons sufficient to convert a portion of the Ir to Pt to form an irradiated material; dissolving the irradiated material to form an intermediate solution comprising Ir and Pt; and separating the Pt from the Ir by cation exchange chromatography to produce Pt.

High specific activity platinum-195m

A method of preparing high-specific-activity Pt includes the steps of: exposing Ir to a flux of neutrons sufficient to convert a portion of the Ir to Pt to form an irradiated material; dissolving the irradiated material to form an intermediate solution comprising Ir and Pt; and separating the Pt from the Ir by cation exchange chromatography to produce Pt.

Method of preparing high specific activity platinum-195m

A method of separating lutetium from a solution containing Lu and Yb, particularly reactor-produced Lu and Yb, includes the steps of: providing a chromatographic separation apparatus containing LN resin; loading the apparatus with a solution containing Lu and Yb; and eluting the apparatus to chromatographically separate the Lu and the Yb in order to produce high-specific-activity Yb.

Method for preparing high specific activity 177Lu

A method of preparing a concentrated solution of a carrier-free radioisotope which includes the steps of:

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Clinton, TN, United States of America

Arnold L Beets