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Abstract

An actinyl-selective polymer detects the presence of actinide ions in a solution. An electrode or FET gate surface of a sensor element may be coated or otherwise made to include the actinyl-selective polymer, which preferably includes chelating molecules selective to ions having the general formula MO.sub.2.sup.X, where M represents any metal in the actinide group and X represents 1+, 2+, or any other charge state, including uranium ions (UO.sub.2.sup.2+), plutonium ions (PuO.sub.2.sup.2+, PuO.sub.2.sup.1+), and thorium ions (ThO.sub.2.sup.1+) and others. The chelating polymer is preferably made by first polymerizing a selected monomer and then derivatizing the polymer with a calix[n]arene rings (where n=4-10) compound, resulting in a high density of chelating molecules on the surface of the polymer, where they are accessible to the solutions being testing and cleansing or rejuvenating solutions.

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First Claim