著者

高島 教一郎 河口 広司 中島 篤之助

出版者

社団法人 日本分光学会

雑誌

分光研究 (ISSN:00387002)

巻号頁・発行日

vol.11, no.1, pp.14-19, 1962

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The evaporation method developed by Mandel' shtam and Zaidel is applied for the determination of impurity elements in uranium oxide.For the evaporation of impurity elements, most favorable sam-ple temperature, duration of heating, sample weight, and gap length between a collector electrode and a crucible are chosen.Calibration curves for the determination of Fe, Cr, Mn, Ni, Cu, B, Si, P and Cd are prepared.In the analyses of B and Cd, AgCl is added to uranium oxide (1%) as a carrier before evaporation and a d.c.arc excitation (10A) is used in the spectrographic procedure.Though the repeatability of analytical results is 10% or so for each element, the values determined for Fe and Ni are considerably deviated from the values obtained by the carrier-distillation method and chemical analysis.The evaporation rate is measured as a function of evaporation temperature for Sb, Fe and Cd by the use of radioactive tracers <SUP>124</SUP>Sb, <SUP>59</SUP>Fe and <SUP>115m</SUP>Cd respectively.