熱中性子-即発γ線スペクトロメトリーによる耐熱合金及びフライアッシュ中のホウ素の定量(<特集>無機材料分析のためのスペクトロメトリー)

概要

論文の詳細を見る
The analytical method for the determination of trace amounts of boron was studied using a neutron capture gamma-ray facility (NCGF) installed at Japan Research Reactor No. 3 (JRR-3), JAERI. The prompt gamma-ray (478 keV) from the excited state of ^7Li produced in the reaction ^<10>B (n, α) ^7Li was used for the determination of boron. To determine boron accurately, three internal standard methods were studied. More than ten ppm of boron in refractory alloy reference materials were determined by the internal standard methods of chromium and nickel. The analytical results by the latter was slightly high compared to that by the former, and the former was found to be suitable for the boron analysis in refractory alloys. The boron content in the reference material of fly ash was determined by the internal standard method of chlorine. The analytical results obtained by this method were in good agreement with those by both the isotope dilution mass spectrometry and the other thermal neutron-prompt gamma-ray spectrometry made by other workers.
社団法人日本分析化学会の論文
1986-08-05