Yuki Ueda, Ayano Eguchi, Kohei Tokunaga, Kei Kikuchi, Tsuyoshi Sugita, Hiroyuki Okamura, Hirochika Naganawa. Urea-Introduced Ionic Liquid for the Effective Extraction of Pt(IV) and Pd(II) Ions. Industrial & Engineering Chemistry Research. 2022
Yuki Ueda, Kei Kikuchi, Kohei Tokunaga, Tsuyoshi Sugita, Noboru Aoyagi, Kazuya Tanaka, Hiroyuki Okamura. A Fluorous Phosphate for the Effective Extraction of LnIII from Nitrate media: Comparison with a Conventional Organic Phosphate. Solvent Extraction and Ion Exchange. 2021. 39. 5-6. 491-511
Hiroyuki Okamura, Naoki Hirayama. Recent Progress in Ionic Liquid Extraction for the Separation of Rare Earth Elements. Analytical Sciences. 2021. 37. 1. 119-130