Abstract
The use of Kel-F (polytrifluorochloroethylene) and Microthene-710 (microporous polyethylene) supporting some liquid ion exchangers is described. Solutions of tri- n-octylamine (TNOA), Aliquat-336 and di(2-ethylhexyl)phosphoric acid (HDEHP) have been used as stationary phases. Many separations were carried out both by column chromatography and by batch extraction. This technique can be used successfully as a selective pre-concentration step for the determination of many radionuclides in aqueous solutions and biological samples. The possibility of supporting an organic redox agent together with the liquid ion exchanger is also described. Finally, the possible advantages of this technique when used in connection with liquid scintillation counting are discussed.
Published Version
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