| D2EHPA萃取稀土的有机相红外光谱及添加DMHPA的影响 |
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| 引用本文： | 沈玉华,吴瑾光.D2EHPA萃取稀土的有机相红外光谱及添加DMHPA的影响[J].光谱学与光谱分析,1997,17(3):32-35. |
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| 作者姓名： | 沈玉华 吴瑾光 |
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| 作者单位： | 安庆师范学院化学系 |
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| 基金项目： | 国家攀登计划基金,国家自然科学基金 |
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| 摘 要： | 本文研究了部分皂化的二（２－乙基己基）磷酸（Ｄ２ＥＨＰＡ）－正庚烷体系萃取稀土离子Ｙ＾３＋，Ｐｒ＾３＋，Ｎｄ＾３＋，Ｅｕ＾３＋后有机的傅里叶变换红外光谱（ＦＴ－ＩＲ）。发现不同稀土离子与萃取剂的配位能力有差异，并且皂化度对萃取有机相中的Ｐ＝Ｏ谱带的频率和吸收强度皆有影响，在Ｄ２ＥＨＰＡ中加入二（１－甲基庚基）磷酸（ＤＭＨＰＡ）导致Ｐ＝Ｏ谱带形状和吸收强度发生变化。
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| 关 键 词： | 稀土 萃取有机相 FTIR D2EHPR DMHPA 萃取剂 |
FT IR CHARACTERIZATION OF EXTRACTED ORGANIC PHASE CONTAINING D2EHPA LANTHANIDE COMPLEXES AND EFFECTS OF ADDING DMHPA |
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| Y Shen,D Wang,J Wu.FT IR CHARACTERIZATION OF EXTRACTED ORGANIC PHASE CONTAINING D2EHPA LANTHANIDE COMPLEXES AND EFFECTS OF ADDING DMHPA[J].Spectroscopy and Spectral Analysis,1997,17(3):32-35. |
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| Authors: | Y Shen D Wang J Wu |
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| Institution: | Department of Chemistry, Anqing Normal College, 246011 Anqing. |
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| Abstract: | FT IR spectroscopy was used to characterize the extracted organic phase of di(2 ethylhexyl)phosphoric acid n heptane containing lanthanide ions Ln 3+ (Ln:Y,Pr,Nd,Eu).It was found that the coordination interaction of heavy lanthanide ions with D2EHPA is stronger than that of light lanthanide ions,and saponification percentage of D2EHPA affects both the absorption frequency and the intensity of P=O bond in the extracted organic phase.Furthermore,the addition of di(1 methylheptyl)phosphoric acid to the D2EHPA extraction system leads to the variation of both peak position and intensity of P=O bond. |
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| Keywords: | Lanthanide Di(2 ethylhexyl)phosphoric acid Extracted organic phase FT IR |
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