Sequential separation of U, Th, Pb and lanthanides with a single anion-exchange column

Miyamoto, Yutaka   ; Yasuda, Kenichiro   ; Magara, Masaaki  ; Kimura, Takaumi ; Usuda, Shigekazu*

With combination of a single anion-exchange column and mixed-media of CHCOOH and other acids (HCl and/or HNO), 50 ng of U, Th, Pb, and lanthanides were sequentially separated. All of the elements were recovered more than 95%, and the decontamination factor was more than 100. This separation technique reduces separation time and simplified the complicated traditional processes without any special reagents and equipments.