Analytical radiochemistry of neutron activated samples in practice
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Analytical radiochemistry of neutron-activated samples, as practiced during past decades at the Jožef Stefan Institute Ljubljana, is outlined. The paper reviews achievements made in both elemental analysis and analyses of long-lived radionuclides, in variety of sample types. The presented analytical procedures include application of diverse chemical separations, multiple irradiations of samples, use of various nuclear reactions and detection modes for particular measurands, and determination of elements that are difficult to be determined by neutron activation analysis (NAA). Useful practical applications of neutron-activated tracers for chemical yield determinations, as unique feature of radiochemical NAA in comparison with non-nuclear analytical methods, are also addressed.
KeywordsAnalytical radiochemistry Neutron activation analysis Radiochemical separation k0-RNAA Radioactive tracer
Late Professor L. Kosta and our retired colleagues Drs. A.R. Byrne, M. Dermelj and V. Stibilj are acknowledged for their contributions to methodological developments to the RNAA at JSI. The authors also thank Dr. Z. Šlejkovec, as well as ex-colleagues Drs. A. Fajgelj, A. Osterc and U. Repinc for their valuable work within the group. Gratitude goes to colleagues from the Institute of Chemistry, Ss. Cyril and Methodius University in Skopje, for their long-term collaboration. The Slovenian Research Agency, ARRS, (Contracts Nos. P1-0143 and P2-0075) is greatly acknowledged for its financial support.
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