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Nakai, Noa; Urashima, Shuhei; Watanabe, Masayuki ; Kusaka, Ryoji

Solvent extraction is a technique used to separate specific metal ions from other metal ions by transferring them from the aqueous phase to the oil phase. Despite its prevalence as a metal separation method, the fundamental reaction mechanism underlying the transfer of metal ions between the aqueous and oil phases remains poorly understood. The present study aims to obtain insights into the mechanism of europium ion (Eu $^{3+}$ ) transfer with the di-(2-ethylhexyl)phosphoric acid (HDEHP) extractant, by examining the free OH vibrational region (around 3700 cm $^{-1}$ ) at the oil/water interface using vibrational sum frequency generation spectroscopy.

Language	:	Japanese
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Meeting title	:	第18回分子科学討論会(京都)
Held date	:	2024/09
Location (city)	:	京都
Location (country)	:	日本
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Keywords	:	振動和周波発生分光; 界面; 溶媒抽出
Research Facility	:	第4研究棟
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Registration No. : BB20240671
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