caa a22 4500 465732283 CHVBK 20180323111744.0 cr unu---uuuuu 170327e19900801xx s 000 0 eng 10.1007/BF02035805 doi (NATIONALLICENCE)springer-10.1007/BF02035805 The determination of Eu and Sm by application of X-ray spectrometry to isotope-source activation analysis [Elektronische Daten] [A. Pillay, C. Mboweni] The use, for analysis, of K X-rays proceeding from metastable and beta-emitting radionuclides—produced by neutron activation—is an undeveloped aspect of activation analysis. Consequently, this study examines the feasibility of applying X-ray spectrometry to isotope source activation analysis and in particular the determination of Sm and Eu at low levels is described. Generally speaking, the sensitivity is seriously restricted by the thermal neutron flux of the source but in certain specific cases the analysis is favoured by the nuclear properties of the elements concerned. Therefore, the selection of elements was based largely on their demand for analysis and their ability to produce a practicable yield. Optimum signalto-noise ratios were attained by employing a detector that was particularly sensitive at energies below 150 keV. Analytical conditions are demonstrated for the elements of interest over a wide range of concentrations in small samples, and ultimately the applicability of the method was tested by the analysis of a typical monazite sample. The analytical potential of the method is thoroughly appraised and possible practical applications are discussed. Akadémiai Kiadó, 1990 Pillay A. Department of Chemistry, University of the Witwatersrand, P.O. Wits, 2050, South Africa aut Mboweni C. Department of Chemistry, University of the Witwatersrand, P.O. Wits, 2050, South Africa aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 141/2(1990-08-01), 393-399 0236-5731 141:2<393 1990 141 10967 https://doi.org/10.1007/BF02035805 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02035805 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pillay A. Department of Chemistry, University of the Witwatersrand, P.O. Wits, 2050, South Africa aut NATIONALLICENCE 700 1- Mboweni C. Department of Chemistry, University of the Witwatersrand, P.O. Wits, 2050, South Africa aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 141/2(1990-08-01), 393-399 0236-5731 141:2<393 1990 141 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer