Zobrazeno 1 - 10
of 105
pro vyhledávání: '"Nagao Ikeda"'
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 222:105-108
A series of metal β-diketonates were irradiated with bremsstrahlung of maximum energy of 50 MeV and the recoil behavior of7Be, formed from12C of ligands through12C(γ, αn)7Be reaction, was investigated.7Be nuclides thus formed were detected partial
Autor:
Nagao Ikeda
Publikováno v:
Proceedings of the Japan Academy. Series B, Physical and Biological Sciences
Shortly before the Second World War time, Nishina reported on a series of prominent nuclear physical and radiochemical studies in collaboration with Kimura. They artificially produced (231)Th, a member of the natural actinium series of nuclides, by b
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry Articles. 156:201-213
Intertidal coastal and estuarine sediments from 24 sites in the Irish Sea have been analyzed for99Tc,237Np,238Pu,239,240Pu and241Am. The237Np activity and239Pu/240Pu ratio were measured simultaneously by ICP-MS, and99Tc was determined by HR-ICP-MS wh
Publikováno v:
International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes. 42:531-534
A new analytical technique using inductively coupled plasma mass spectrometry (ICP-MS) was applied to the determination of 99Tc in some environmental samples. The accuracy and precision of the new method were assessed by comparison with those of the
Autor:
Nagao Ikeda, Masayoshi Yamamoto, Kunio Shiraishi, Chang Kyu Kim, Yuichi Takaku, Yasuhito Igarashi
Publikováno v:
Analytical Sciences. 6:157-164
This review describes applications of inductively coupled plasma mass spectrometry (ICP-MS) to the determination of long-lived radionuclides in environmental samples. Simultaneous determination of 232Th and 238U in biological samples is described in
Publikováno v:
RADIOISOTOPES. 39:547-552
The adsorption behaviors of niobium and zirconium on silica gel and some other adsorbents were investigated in various concentrations of nitric acid or hydrochloric acid. Niobium is strongly adsorbed on silica gel in a concentrated nitric acid soluti
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry Articles. 138:17-31
The concentration of129I in soil in Japan was determined by neutron activation analysis. For the activation analysis, pre-irradiation chemical separation of the iodine was carried out by acid decomposition and distillation and post-irradiation treatm
Autor:
Nagao Ikeda
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry Articles. 138:257-259
Publikováno v:
RADIOISOTOPES. 36:433-439
Plutonium and uranium in human tissues obtained from residents of the Tokyo area were determined by a-spectrometry and the fission track method, respectively. The distribution pattern of each element was estimated on the basis of mean concentration o
Publikováno v:
RADIOISOTOPES. 24:857-860
環境試料中の60Coの簡易迅速分析法を考案した。この方法は60Coの水酸化物沈殿への共沈, 陰イオン交換およびTOA抽出による分離, そして液体シンチレーションカウンターによる測定とから