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Quantitative analysis of neodymium, uranium, and palladium in nitric acid solution by reflection absorption spectrophotometry

反射吸光分光法による硝酸溶液中のネオジム、ウラン及びパラジウムの定量分析

藤井 俊行*; 江草 聡一朗*; 上原 章寛*; 山名 元*; 森田 泰治

Fujii, Toshiyuki*; Egusa, Soichiro*; Uehara, Akihiro*; Yamana, Hajimu*; Morita, Yasuji

紫外-可視-赤外領域の反射吸光分光法による3M硝酸中のNd, U及びPdの定量分析を実施した。分析は、反射光測定が可能な試料チャンバーに光ファイバーを取り付け、紫外-可視-赤外分光光度計を用いて行った。反射吸光度は、その値が0.1以下のとき、Nd, U及びPdの濃度に比例し、3M硝酸中で、Nd, U及びPdの濃度が、それぞれ0.2M, 0.04M, 0.01M程度以下であれば定量分析が可能であることがわかった。

Quantitative analysis of Nd, U, or Pd in 3 mol dm$$^{-3}$$ (M) HNO$$_{3}$$ was performed by reflection absorption spectrophotometry at ultraviolet-visible-near-infrared (UV/Vis/NIR) region. A sample chamber with optics for reflection measurement was designed and attached to a UV/Vis/NIR spectrophotometer by optical fibers. The reflection absorbance showed linear relations with concentrations of Nd, U, and Pd at the absorbance region less than 0.1. The quantitative analysis was found to be possible for 3 M HNO$$_{3}$$ solutions containing [Nd] ca. 0.2 M, [U] ca. 0.04 M, or [Pd] ca. 0.01 M at maximum.

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パーセンタイル:84.29

分野:Chemistry, Analytical

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