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aqueous solution system revealed by fluorescence microspectroscopyMiyagawa, Akihisa*; Kusano, Yuka*; Nagatomo, Shigenori*; Sano, Yuichi; Nakatani, Kiyoharu*
Analytical Sciences, 38(7), p.955 - 961, 2022/07
Times Cited Count：0 Percentile：0(Chemistry, Analytical)In this study, we reveal an Eu(III) extraction mechanism at the interface between HNO and tributyl phosphate (TBP) solutions using fluorescence microspectroscopy. The mass transfer rate constant at the interface is obtained from the analysis of fluorescence intensity changes during the forward and backward extractions at various HNO and TBP concentrations to investigate the reaction mechanism. This result indicates that one nitrate ion reacts with Eu(III) at the interface, whereas TBP molecules are not involved in the interfacial reaction, which is different from the results obtained using the NaNO solution in our previous study. We demonstrate that the chemical species of Eu(III) complex with nitrate ion and TBP in the aqueous solution play an important role for the extraction mechanism.
Yoshigoe, Akitaka
Hoshako Riyo No Tebiki, p.130 - 138, 2019/02
The educational book on next-generation synchrotron radiation usage is partially written. This book is being planned by several professors at Tohoku University. In this book, the contents which have already reported in our recent paper [Appl. Phys. Lett. 112 (2018) 021603.] are mainly written. The future perspective on photoemission electron microscopy using next generation synchrotron radiation and its possibility to analyze environmental samples and insulating functional materials are also described.
Koike, Masato
Heisei 9nenndo - Heisei 12nenndo Kagaku Kennkyuhi Hojyokin, Kenkyu Seika Houkokusyo (Kenkyu Kadai Bangou 09309001), p.70 - 76, 2001/03
no abstracts in English
*; Isobe, Hiroshi; *; *
Annual Report of the Institute of Geoscience,Univ. of Tsukuba,No. 21, p.9 - 13, 1995/12
no abstracts in English
Kusaka, Ryoji; Watanabe, Masayuki
no journal, ,
We are trying to elucidate migration behavior and adsorption/desorption mechanism of various radionuclides. In this study, it was clarified that the mobility of europium ion (Eu
) on silica gel was greatly changed by the coexistence of uranyl ion (UO
).
Kusaka, Ryoji; Watanabe, Masayuki
no journal, ,
We aim to evaluate diffusion risk of various radioactive elements in the 1F contaminated water by clarifying their environmental mobility. In this study, we report a method that can relatively easily investigate mobility of radioactive elements using microspectroscopy in microscale experiment.
Hayashi, Naoki*; Miyagawa, Akihisa*; Nagatomo, Shigenori*; Nakatani, Kiyoharu*; Sato, Kiyomori*; Arai, Tsuyoshi*; Ambai, Hiromu; Hasegawa, Kenta; Watanabe, So; Sano, Yuichi
no journal, ,
The fluorescence of lanthanide ions within a single extractant-impregnated silica particle was obtained using a microspectrometer to evaluate their distribution behavior within the particle.
