Methods and devices for the separation of radioactive rare earth metal isotopes from their alkaline earth metal precursors
AssigneeIdaho Research Foundation, Inc.
InventorChien M. Wai
Life of this patent
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Abstract
Methods and devices for the separation of a radioactive rare earth metal isotopes or a radioactive isotope of yttrium or scandium from their alkaline earth metal precursors with ionizable dibenzo ether derivatives.
Claims69
A method for the separation of a radioactive rare earth metal isotope or a radioactive isotope of yttrium or scandium from its alkaline earth metal precursor comprising contacting a sample containing at least one of said isotopes and said precursor with an ionizable dibenzo ether derivative.
A device for the separation of a radioactive rare earth metal isotope or a radioactive isotope of yttrium or scandium from its alkaline earth metal precursor comprising a substrate and a compound represented by the formula:
- ##STR10## wherein X is a dibenzo crown ether of the formula dibenzo -13+3m]crown- -4+m] ether, and m is an integer of from 0 to about 5, n is an integer of from 0 to 6;
- R is --OH or --NHOH;
- and R.sup.1 is H or a lipophilic hydrocarbyl group having from 1 to about 18 carbon atoms and is selected from the group consisting of alkyl, cycloalkyl, alkenyl and aryl groups.
A device for the separation of a radioactive rare earth metal isotope or a radioactive isotope of yttrium or scandium from its alkaline earth metal precursor comprising a substrate and a compound represented by the formula:
- ##STR11## wherein Y is a member selected from the group consisting of (CH.sub.2).sub.3 [-CH.sub.2 CH.sub.2 O).sub.n CH.sub.2 CH.sub.2 ] wherein n is an integer of from 1 to about 4, and CH.sub.2 CONHCH.sub.2 CH.sub.2 NHCOCH.sub.2 ;
- R is --OH or --NHOH;
- and R.sup.1, which may be the same or different, is selected from the group consisting of H, and a hydrocarbyl group having from 1 to about 18 carbon atoms and selected from the group consisting of alkyl, cycloalkyl, alkenyl and aryl groups.
A device for the separation of a radioactive rare earth metal isotope or a radioactive isotope of yttrium or scandium from its alkaline earth metal precursor comprising a substrate and a compound represented by the formula:
- ##STR12## wherein X is a dibenzo crown ether of the formula dibenzo-[13+3m]-crown-[4+m]-ether and m is an integer of from 0 to about 5, and X may be the same or different;
- R is --OH or --NHOH;
- and R.sup.1 is hydrogen or a lipophilic hydrocarbyl group having from 1 to about 18 carbon atoms and is selected from the group consisting of alkyl, cycloalkyl, alkenyl and aryl groups.
A device for the separation of a radioactive rare earth metal isotope or a radioactive isotope of yttrium or scandium from its alkaline earth metal precursor comprising a substrate and a compound represented by the formula:
- ##STR13## wherein R is --OH or --NHOH;
- and R.sup.1 is H or a hydrocarbyl group having from 1 to about 18 carbon atoms and selected from the group consisting of alkyl, cycloalkyl, alkenyl and aryl groups.
Dependencies are inferred from the claim text.