caa a22 4500 465731570 CHVBK 20180323111743.0 cr unu---uuuuu 170327e19900301xx s 000 0 eng 10.1007/BF02060462 doi (NATIONALLICENCE)springer-10.1007/BF02060462 Ion exchange separation of trace amounts of uranium and thorium in tantalum for neutron activation analysis [Elektronische Daten] [Y. Sasaki, H. Takeishi, T. Adachi, K. Izawa] Separation method of a few ppb of uranium and thorium in tantalum metal by ion exchange for neutron activation analysis was established. After dissolving tantalum metal by hydrofluoric acid, uranium and thorium were separated from tantalum using cation exchange resin column in 0.5M hydrofluoric −0.65M boric acid media. Both of the yields for uranium and thorium during separation were above 95% and the remaining amount of tantalum be lowered below 400 ng. Akadémiai Kiadó, 1990 Sasaki Y. Japan Atomic Energy Research Institute, Tokai-mura, 319-11, Naka-gun, Ibaraki-ken, (Japan) aut Takeishi H. Japan Atomic Energy Research Institute, Tokai-mura, 319-11, Naka-gun, Ibaraki-ken, (Japan) aut Adachi T. Japan Atomic Energy Research Institute, Tokai-mura, 319-11, Naka-gun, Ibaraki-ken, (Japan) aut Izawa K. Irradiation Development Association, Tokai-mura, 319-11, Naka-gun, Ibaraki-ken, (Japan) aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 139/1(1990-03-01), 143-151 0236-5731 139:1<143 1990 139 10967 https://doi.org/10.1007/BF02060462 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02060462 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sasaki Y. Japan Atomic Energy Research Institute, Tokai-mura, 319-11, Naka-gun, Ibaraki-ken, (Japan) aut NATIONALLICENCE 700 1- Takeishi H. Japan Atomic Energy Research Institute, Tokai-mura, 319-11, Naka-gun, Ibaraki-ken, (Japan) aut NATIONALLICENCE 700 1- Adachi T. Japan Atomic Energy Research Institute, Tokai-mura, 319-11, Naka-gun, Ibaraki-ken, (Japan) aut NATIONALLICENCE 700 1- Izawa K. Irradiation Development Association, Tokai-mura, 319-11, Naka-gun, Ibaraki-ken, (Japan) aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 139/1(1990-03-01), 143-151 0236-5731 139:1<143 1990 139 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer