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Radiochemical separation advancements using extraction chromatography: A review of recent Eichrom Users' Group Workshop presentations with a focus on matrix interferences

  • L. E. Jassin
Article

Summary

The sorption of Pu(VI) by synthetic hydroxyapatite was determined in NaClO<Subscript>4</Subscript> media. Pu(VI) sorption was determined to be rapid with equilibrium attained in 2 hours. Equilibrium experiments indicated sorption to be pH dependent with distribution constants, log <Emphasis Type=”Italic”>K<Subscript>a</Subscript></Emphasis> values, ranging from 4.11 at pH 6 to 5.92 at pH 8.5. Data collected at pH 8.0 with varying total Pu(VI) were fit to the Langmuir isotherm and yielded Langmuir constants of <Emphasis Type=”Italic”>C<Subscript>a</Subscript> </Emphasis>= 0.0147 mole/mole and <Emphasis Type=”Italic”>K</Emphasis> = 1.71<Superscript> .</Superscript> 10<Superscript>8</Superscript> l/mole. Although varying ionic strength did not have an effect on Pu(VI) sorption, a decrease in sorption was evident at high calcium and phosphate concentrations.

Keywords

Calcium Phosphate Chromatography Ionic Strength Hydroxyapatite 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag/Akad&#233;miai Kiad&#243; 2005

Authors and Affiliations

  • L. E. Jassin
    • 1
  1. 1.Eichrom Technologies, Inc.

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