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- W4033260 abstract "Akiba, K., Ishibashi, Y. and Nakamura, S., 1990. Application of liquid-liquid extraction of lanthanoid elements to centrifugal partition chromatography.Extraction of lanthanoid elements (M) by 2-ethylhexyl 2-ethylhexylphosphonic acid (EHPA; HA) proceeds via the reaction, M3+aq + 3(HA)2, org ⇄ M(HA2)3, org + 3H+aq. This liquid-liquid extraction has been modified to a centrifugal partition chromatography (CPC). An organic solution containing EHPA was held as a stationary phase and an aqueous mobile phase was passed through the stationary phase. The retention volume (VR) is related to the distribution ratio (D) of the desired lanthanoid element, VR = Vm + D·VS, where VS and Vm are the volumes of the stationary and mobile phases, respectively. The addition of water-soluble alcohols enhanced the resolution of adjacent bands. The mutual separation of mixed lanthanoids, Sm-Eu-Gd, was accomplished by employing the ethylene glycol-water mixture as the mobile phase. The separation process in CPC essentially corresponds to that in liquid-liquid extraction." @default.
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- W4033260 date "1992-01-01" @default.
- W4033260 modified "2023-09-27" @default.
- W4033260 title "Application of Liquid-Liquid Extraction if Lanthanoid Elements to Centrifugal Partition Chromatography" @default.
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- W4033260 doi "https://doi.org/10.1016/b978-0-444-88677-4.50096-9" @default.
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