Novel extraction chromatographic materials for the separation and preconcentration of radionuclides
New chromatographic methods have been developed to separate and preconcentrate the actinide elements and radiostrontium from a variety of biological and environmental samples. Several of these methods involve the use, in an extraction chromatographic mode, of a chemical system originally devised for the removal of various radionuclides from acidic, high-level nuclear waste solutions. For the isolation of actinides, for example, a solution of the sample in nitric acid is passed through a column containing a solution of CMPO in tributyl phosphate (the basis of the well-known TRUEX process) sorbed on an inert polymeric substrate. Isolation of radiostrontium is accomplished by passing a sample solution, again in nitric acid, through a column containing a polymeric support impregnated with an octanol solution of di-t-butylcyclohexano-18-crown-6 (the basis of the SREX process for strontium removal from nuclear wastes). Sorbed strontium can be eluted with dilute nitric acid and counted via liquid scintillation. A variety of applications of these and other related materials to the analysis of environmental and biological samples are described.
- Research Organization:
- Argonne National Lab., IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 10106987
- Report Number(s):
- ANL/CHM/CP-75734; CONF-930945-3; ON: DE93002899
- Resource Relation:
- Conference: International solvent extraction conference (ISEC `93),York (United Kingdom), 9-15 Sep 1993; Other Information: PBD: [1992]
- Country of Publication:
- United States
- Language:
- English
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