caa a22 4500 469111445 CHVBK 20180323133112.0 cr unu---uuuuu 170328e19920401xx s 000 0 eng 10.1007/BF02047118 doi (NATIONALLICENCE)springer-10.1007/BF02047118 Determination of Cd, Mo, Cr and Co in biological materials by RNAA [Elektronische Daten] [J. Woittiez, M. De La Cruz Tangonan] A method for the determination of trace amounts of Mo, Cd, Co and Cr in biological materials by neutron activation analysis with radiochemical separation is presented. The method is based on the ion-exchange scheme developed by SAMSAHL, where Co and Cr are trapped on BioRad Chelex-100 and Cd and Mo on BioRad AG2X8. The elements Mo, Cd and Co can be determined without systematic errors. For the element chromium the situation is less clear, partially due to lack of sufficient certified reference materials for Cr. The method has been used in the characterization of candidate reference materials. Detection limits in these materials range from 1.5 μg/kg for Co to 10 μg/kg for Cr. Actual levels as low as 8 μg/kg for Cd and 7 μg/kg for Co were measured. Akadémiai Kiadó, 1992 Woittiez J. Interfaculty Reactor Institute, Delft University of Technology, Mekelweg 15, 2629 JB, Delft, (The Netherlands) aut De La Cruz Tangonan M. Interfaculty Reactor Institute, Delft University of Technology, Mekelweg 15, 2629 JB, Delft, (The Netherlands) aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 158/2(1992-04-01), 313-321 0236-5731 158:2<313 1992 158 10967 https://doi.org/10.1007/BF02047118 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02047118 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Woittiez J. Interfaculty Reactor Institute, Delft University of Technology, Mekelweg 15, 2629 JB, Delft, (The Netherlands) aut NATIONALLICENCE 700 1- De La Cruz Tangonan M. Interfaculty Reactor Institute, Delft University of Technology, Mekelweg 15, 2629 JB, Delft, (The Netherlands) aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 158/2(1992-04-01), 313-321 0236-5731 158:2<313 1992 158 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer