Autor: |
Guérin, Nicolas, Behm, Deborah, Leppinen, John, Gagné, Alexandre |
Předmět: |
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Zdroj: |
Journal of Radioanalytical & Nuclear Chemistry; Oct2023, Vol. 332 Issue 10, p4311-4323, 13p, 1 Diagram, 5 Charts, 6 Graphs |
Abstrakt: |
A new method to determine 226Ra by alpha spectrometry from various environmental samples was developed. After sample dissolution, Ra(II) was co-precipitated with PbSO4, and the precipitate was quickly filtered 1 min later. The rapid filtration of PbSO4 prevented CaSO4 and SrSO4 from precipitating. The Pb(Ra)SO4 precipitate was re-dissolved using an EDTA solution and the pH was adjusted to 5 with sulfuric acid. Then, a BaSO4 micro-precipitation was performed to prepare a Ra thin-layer source for measurement of 226Ra by alpha spectrometry. Excellent decontamination factors were obtained. The method was validated using spiked samples and certified reference materials. [ABSTRACT FROM AUTHOR] |
Databáze: |
Complementary Index |
Externí odkaz: |
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