Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
大高 稔紀*; 佐藤 辰巳*; 大野 真平; 名越 航平; 安倍 諒治*; 新井 剛*; 渡部 創; 佐野 雄一; 竹内 正行; 中谷 清治*
Analytical Sciences, 35(10), p.1129 - 1133, 2019/10
被引用回数:7 パーセンタイル:41.13(Chemistry, Analytical)Single porous silica microparticles coated with styrene-divinylbenzene polymer (SDB) impregnated with octyl(phenyl)-N,N-diisobutylcarbamoylmethylphosphine oxide (CMPO) were injected into an aqueous 3 mol/L nitric acid solution containing trivalent lanthanide (Ln(III)), as a high-level liquid waste model, using the microcapillary manipulation-injection technique; and the extraction rate of Ln(III), as an Ln(III)-CMPO complex, into the single microparticles was measured by luminescence microspectroscopy. The extraction rate significantly depended on the Ln(III), CMPO, or NO concentration, and was analyzed in terms of diffusion in the pores of the microparticles and complex formation of Ln(III). The results indicated that the rate-determining step in Ln(III) extraction was the diffusion in the pore solution of the microparticles.
大高 稔紀*; 佐藤 辰巳*; 中谷 清治*; 名越 航平*; 安倍 諒治*; 新井 剛*; 渡部 創; 佐野 雄一; 竹内 正行
no journal, ,
硝酸溶液中におけるリン系抽出剤を含浸させた高分子被覆多孔質シリカへのEuの分配過程を顕微蛍光法で追跡した。Eu分配速度の高分子架橋度やEu濃度、CMPO含有量依存性から、Eu移動機構を検討した。