Extraction behavior of rutherfordium as a cationic fluoride complex with a TTA chelate extractant from HF/HNO acidic solutions

TTAキレート抽出剤を用いたHF/HNO 混合溶液中でのラザホージウム陽イオンフッ化物錯体の抽出挙動

横山 明彦*; 北山 雄太*; 福田 芳樹*; 菊永 英寿*; 村上 昌史*  ; 小森 有希子*; 矢納 慎也*; 羽場 宏光*; 塚田 和明  ; 豊嶋 厚史*

Yokoyama, Akihiko*; Kitayama, Yuta*; Fukuda, Yoshiki*; Kikunaga, Hidetoshi*; Murakami, Masashi*; Komori, Yukiko*; Yano, Shinya*; Haba, Hiromitsu*; Tsukada, Kazuaki; Toyoshima, Atsushi*

The aim of this study was to identify relevant Rf chemical species by using reversed-phase extraction chromatography with 2-thenoyltrifluoroacetone (TTA) resin as the stationary phase. Because TTA can be used to extract specific metal ions, the distribution ratios of the system enabled determination of the specific complex formation constant of Rf. We performed several experiments on chemical systems with Zr, Hf, No, and Rf, determined their adsorption coefficients, and deduced the K values for Rf.