Kandlbinder, Robert and Schupfner, Robert and Wolfbeis, Otto S. (2010) Determination of Ra-228 in human bone ash containing significant quantities of K-40 and Ca2+. JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 283 (1). pp. 69-73. ISSN 0236-5731,
Full text not available from this repository. (Request a copy)Abstract
The determination of Ra-228 by means of gamma-spectrometry, in material containing significant quantities of K-40 and Ca2+ such as bone ash results in increased values of counting uncertainty and lower limit of detection (LLD) because of a significant contribution from the Compton continuum of K-40. However, K-40 is widely removed from bone ash if Ra-228 is coprecipitated with barium sulfate. As a result, the counting uncertainty and LLD are significantly reduced. A method is presented for determination of very low activity concentrations of Ra-228. Impurities introduced by precipitation are negligible when applying high resolution gamma-spectrometry.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ION-EXCHANGE; SEPARATION; EXTRACTION; RADIUM; Ra-228; Coprecipitation; Calcium; Potassium |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Analytische Chemie, Chemo- und Biosensorik > Chemo- und Biosensorik (Prof. Antje J. Bäumner, formerly Prof. Wolfbeis) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 20 Aug 2020 12:17 |
| Last Modified: | 20 Aug 2020 12:17 |
| URI: | https://pred.uni-regensburg.de/id/eprint/25523 |
Actions (login required)
 |
View Item |
