Abstract
This work describes a procedure for the isolation of Sr-90 and Pb-210 from deer bones by anion exchange methods and their sequential measurement by LSC. To prevent collection of Pb on the Sr.Spec (R) resin we first separated Pb on a Dowex anion exchange column. Sr, which is not held back on the Dowex column, was then purified using Sr.Spec (R) resin: first Ca and the Ra isotopes were eluted with 3 M HNO3 and then Sr was eluted with distilled water. With this 2-steps procedure pure Pb-210 and Sr-90 spectra can be achieved. The chemical yield of both steps was determined by ICP-MS. Our Sr-90 results show satisfying agreement with data obtained by a shorter Sr.Spec (R) method and also by the "classical'' Sr-90 determination using fuming nitric acid. Also Pb-210 results were checked by re-measuring bone samples with already known Pb-210 activities. Further our method was verified on the reference sample IAEA-A-12.
| Original language | English |
|---|---|
| Pages (from-to) | 429-433 |
| Number of pages | 5 |
| Journal | Journal of Radioanalytical and Nuclear Chemistry |
| Volume | 286 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2010 |
Austrian Fields of Science 2012
- 104003 Inorganic chemistry
- 104020 Radiochemistry