caa a22 4500 465749208 CHVBK 20180323111829.0 cr unu---uuuuu 170327e19900101xx s 000 0 eng 10.1007/BF00322543 doi (NATIONALLICENCE)springer-10.1007/BF00322543 Woittiez Joost Interfaculty Reactor Institute, Delft University of Technology, Mekelweg 15, NL-2629 JB, Delft, The Netherlands aut Use of reference materials for quality control of elemental analysis by neutron activation with radiochemical separation [Elektronische Daten] [Joost Woittiez] Summary: This paper describes the use of certified reference materials to monitor the long-term quality of radiochemical separations. The practical limitations which determine the actual design of the quality control are discussed. The hypothesis that the high yield of the radiochemical separation will be constant with time has been checked and validated for the elements Zn, Fe, Co, Cd, Mo and to a lesser extent for W and Th using NBS SRM 1577A, BCR CRM 274 and IAEA RM A-11. This validation could not be made for the elements Cr, Au and Ag. Especially for Cr there is a serious lack of appropriate certified reference materials. Springer-Verlag, 1990 Fresenius' Journal of Analytical Chemistry Springer-Verlag 338/4(1990-01-01), 575-579 0937-0633 338:4<575 1990 338 216 https://doi.org/10.1007/BF00322543 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00322543 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Woittiez Joost Interfaculty Reactor Institute, Delft University of Technology, Mekelweg 15, NL-2629 JB, Delft, The Netherlands aut NATIONALLICENCE 773 0- Fresenius' Journal of Analytical Chemistry Springer-Verlag 338/4(1990-01-01), 575-579 0937-0633 338:4<575 1990 338 216 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer