@misc{oai:repo.qst.go.jp:00065773,
 author = {王, 鍾堂 and 楊, 国勝 and 鄭, 建 and 曹, 立国 and 尉, 海軍 and 朱, 彥北 and 田上, 恵子 and 内田, 滋夫 and 王 鍾堂 and 楊 国勝 and 鄭 建 and 曹 立国 and 田上 恵子 and 内田 滋夫},
 month = {Sep},
 note = {In this study, two standard reference soils (IAEA-soil-6 and IAEA-375) were used to investigate the ashing temperature effect (from 375 to 600˚C) on HNO3 leaching method for the determination of Pu in soil samples. The Pu analytical results of both standard reference materials showed that lower 239+240Pu activity was observed when the ashing temperature exceeded 450˚C, and the 239+240Pu activity continue to decrease as the ashing temperature was raised. Approximately 40% of the Pu content could not be leached out by concentrate HNO3 after ashing for 4 h at 600˚C. The Pu loss was attributed to the formation of refractory materials, which are insoluble in HNO3 solution. To ensure the Pu release efficiency in HNO3 leaching, we recommend 450˚C as the ideal ashing temperature., 2015 日本放射化学会年会・第59 回放射化学討論会},
 title = {Effect of ashing temperature on accurate determination of plutonium in soil samples},
 year = {2015}
}