| 稀土－钴－茜素氨羧络合剂异核络合物极谱吸附波的研究 |
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| 引用本文： | 崔毅,李南强.稀土－钴－茜素氨羧络合剂异核络合物极谱吸附波的研究[J].高等学校化学学报,1994,15(9):1314. |
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| 作者姓名： | 崔毅 李南强 |
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| 作者单位： | 北京大学化学系, 北京, 100871 |
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| 摘 要： | 稀土－钴－茜素氨羧络合剂异核络合物极谱吸附波的研究崔毅，李南强（北京大学化学系，北京，１００８７１）关键词稀土异核络合物，络合吸附波，单扫极谱Ｌｅｏｎａｒｄ［１］曾用光度法初步确定了Ｌａ（Ⅲ）或Ｃｅ（Ⅲ）、Ｎｉ（Ⅱ）或Ｃｏ（Ⅱ）与茜素氨羧络合剂（ＡＬ...
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| 关 键 词： | 稀土异核络合物 络合吸附波 单扫极谱 |
| 收稿时间： | 1993-09-29 |
Studies on the Polarographic Adsorptive Wave of Heteronuclear Complex of Rare Earth-Cobalt-Alizarin Complexon |
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| CUI Yi,LI Nan-Qiang.Studies on the Polarographic Adsorptive Wave of Heteronuclear Complex of Rare Earth-Cobalt-Alizarin Complexon[J].Chemical Research In Chinese Universities,1994,15(9):1314. |
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| Authors: | CUI Yi LI Nan-Qiang |
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| Institution: | Department of Chemistry, Peking University, Beijing, 100871 |
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| Abstract: | In the 0.4 mol/Lacetate buffer solution, at pH4.6, a sensitive adsorptive wave of heteronuclear complex of RE (Ⅲ)-Co(Ⅱ)-alizarin complexon(ALC)was obtained by single-sweep polarography with the exception of Sc, Lu, Yb and Tm, The peak height of derivative wave is proportional to CLa from 1. 0×10-8 to 2.0×10-6mol/L.By using of photometry and analysis of the complex precipitate, the composition of complex may be LaCo·(AtC)2(Ac)2 Cl2Na7·4H2O;On the mercury electrode, the adsorptive intensity can be arranged as : LaCo(ALC)2>La2(ALC)2>CoALC>ALC.The occupied area of each heteronuclear complex ion on the surface of electrode was detemnined as 1.2- 1.4 nm2 which is commensurate with one ALCion area, The possible constitution may be a sandwich structure. |
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| Keywords: | Heteronuclear complex of rare earth ion Adsorptive wave Single-sweep po larography |
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