Abstract
In order to determine the separability of 113mIn from 113Sn-113mIn, the adsorption behavior of these radionuclides for zirconium oxide were compared with those for hydrous zirconium oxide (HZO) under a variety of experimental conditions. From the batch distribution coefficients, the separability for these adsorbents was shown to be nearly equal over the concentration range of hydrochloric acid as an external solution from 6.1 × 10-2 to 2.6 × 10-1 M. It was shown from the column study that 7085% of 113mIn free from 113Sn was recovered either from HZO column by passing through the hydrochloric acid solutions over the concentration range from 6.1 × 10-2 to 2.6× 10-1 M or from zirconium oxide column from 3.7 × 10-2 to 4.2 × 10-1 M. The merit of zirconium oxide over HZO is that the former is inexpensive, affords wide concentration range of the eluate and keeps zirconium well from breaking through the column. X-Ray diffraction patterns of zirconium oxide were considerably different from those of HZO.
