caa a22 4500 465730299 CHVBK 20180323111739.0 cr unu---uuuuu 170327e19900101xx s 000 0 eng 10.1007/BF02049352 doi (NATIONALLICENCE)springer-10.1007/BF02049352 Determination of Th and U in bone ash by ICP-ion source mass spectrometry [Elektronische Daten] [Hisao Kawamura, Yasuhito Igarashi, Kunio Shiraishi] The feasibility of ICP-ion source mass spectrometry (ICP-MS) for the determination of232Th and238U in bone ash was studied. Bone ash samples were further decomposed with concentrated nitric acid under pressure in PTF crucibles. The resultant solution was diluted and subjected directly to the measurement with an ICP mass spectrometer. The effects of diluting and removing matrix elements on ICP-MS measurements of these nuclides were studied. The accuracy of the determinations was evaluated with the measurement of NBS Human Lung (SRM 4351) which was originally certified for alpha activities of232Th and238U. Akadémiai Kiadó, 1990 Kawamura Hisao Division of Radioecology, National Institute of Radiological Sciences, 3609 Isozaki, Nakaminato, 311-12, Ibaraki, Japan aut Igarashi Yasuhito Division of Radioecology, National Institute of Radiological Sciences, 3609 Isozaki, Nakaminato, 311-12, Ibaraki, Japan aut Shiraishi Kunio Division of Radioecology, National Institute of Radiological Sciences, 3609 Isozaki, Nakaminato, 311-12, Ibaraki, Japan aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 138/1(1990-01-01), 103-109 0236-5731 138:1<103 1990 138 10967 https://doi.org/10.1007/BF02049352 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02049352 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kawamura Hisao Division of Radioecology, National Institute of Radiological Sciences, 3609 Isozaki, Nakaminato, 311-12, Ibaraki, Japan aut NATIONALLICENCE 700 1- Igarashi Yasuhito Division of Radioecology, National Institute of Radiological Sciences, 3609 Isozaki, Nakaminato, 311-12, Ibaraki, Japan aut NATIONALLICENCE 700 1- Shiraishi Kunio Division of Radioecology, National Institute of Radiological Sciences, 3609 Isozaki, Nakaminato, 311-12, Ibaraki, Japan aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 138/1(1990-01-01), 103-109 0236-5731 138:1<103 1990 138 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer