Abstract
Short-time activation analysis is applied to the analysis of bastnaesite, a rare-earth fluorocarbonate and to uranium analyses of the IAEA ore standards S-7 and S-8, using the 2 and 6s groups of delayed neutrons. It is further applied after enrichment procedures for the determination of B in water by the 20 ms B12 activity of Au in sediments after enrichment on carbon by the 7.8 s197mAu, and of a magnetically-separated heavy fraction of bituminous coal NBS-SRM 2683. Analysis after sensitivity enhancement by repeated activation of subsamples is demonstrated by the determination of Na in K-feldspar by the 20 ms24mNa activity. Analysis after pulse activation is demonstrated on NBS-SRM 1648 Urban Particulate.
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Grass, F. Short-time activation analysis with steady-state and pulse irradiation. Journal of Radioanalytical and Nuclear Chemistry, Articles 112, 347–359 (1987). https://doi.org/10.1007/BF02132367
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DOI: https://doi.org/10.1007/BF02132367