Determination of Niobium by Photon-Activation Analysis Based on Internal-Reference Method
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概要
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The internal-reference method proposed previously has been applied to the photon-activation analysis of niobium using molybdenum as the reference element. For the determination of niobium, <SUP>92m</SUP>Nb produced by the (γ,n) reaction was utilized and <SUP>95m</SUP>Nb or <SUP>96</SUP>Nb activities coming from molybdenum by the (γ,p) processes were used as reference. A series of molybdenum and niobium mixtures with known compositions were irradiated by bremsstrahlung photons with a maximum energy of 17 MeV for an hour. After niobium activities were separated chemically, their γ-ray spectra were measured with a lithium-drifted germanium detector. A good proportionality was obtained between the activity ratio, <I>R</I><SUB><I>A</I>0</SUB>, and the weight ratio, <I>R<SUB>W</SUB></I>. Niobium down to 5μ<I>g</I> can be determined with a relative error within ±3% under the present experimental conditions.
- 公益社団法人 日本化学会の論文
著者
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Saito Tatsuya
Department Of Endocrinology And Metabolism Yokohama City University Graduate School Of Medicine
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Pung Tong-Chuin
Department of Chemistry, Faculty of Science, Tohoku University
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Oka Yoshinaga
Department of Chemistry, Faculty of Science, Tohoku University
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