Abstract
An anion exchange method was developed to separate selenium and arsenic for potential utility in a 72Se/72As generator. The separation of the daughter 72As from the 72Se parent is based on the relative acid-base behavior of the two oxo-anions in their highest oxidation states. At pH 1.5, selenate is retained on strongly basic anion exchange resin as HSeO4- and SeO42-, while neutral arsenic acid, H3AsO4, is eluted.
| Original language | English |
|---|---|
| Pages (from-to) | 109-114 |
| Number of pages | 6 |
| Journal | Journal of Chromatography A |
| Volume | 1340 |
| DOIs | |
| State | Published - May 2 2014 |
| Externally published | Yes |
Funding
The authors acknowledge support from the Department of Energy, Office of Basic Energy Sciences, Isotope Research program under Grant No. DE-SC0003851, and trainee support from the National Science Foundation under IGERT award DGE-0965983 (M.D. Gott) and NIBIB Training Grant NIBIB 5 T32 EB004822 (A.J. DeGraffenreid). The 72 Se production was funded by the United States Department of Energy, Office of Science via an award from the Isotope Development and Production for Research and Applications subprogram in the Office of Nuclear Physics.
Keywords
- As-72
- Ion exchange
- Radionuclide generator
- Se-72