| 盐酸-结晶紫底液中碲(Ⅳ)的极谱波性质之研究 |
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| 引用本文： | 朱丽华,施文赵.盐酸-结晶紫底液中碲(Ⅳ)的极谱波性质之研究[J].华中科技大学学报(自然科学版),1991(2). |
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| 作者姓名： | 朱丽华 施文赵 |
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| 作者单位： | 华中理工大学化学系
(朱丽华)，华中理工大学化学系(施文赵) |
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| 基金项目： | 国家自然科学基金资助课题 |
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| 摘 要： | 本文研究了Te(Ⅳ)在盐酸-结晶紫底液中的极谱波特性,结果表明:当Te(Ⅳ)浓度小于80ppb时,为氢催化波;而当其浓度约高于80ppb时,其还原波还叠加了Te(0)与结晶紫在汞电极表面上生成的电活性配合物之吸附波.
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| 关 键 词： | 碲(Ⅳ) 测定 结晶紫 示波极谱 电活性配合物 还原机理 |
On the Nature of Polarographic Wave of Tellurium(IV)-Crystal Violet System in HC1 Solution |
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| Zhu Lihua Shi Wemhao.On the Nature of Polarographic Wave of Tellurium(IV)-Crystal Violet System in HC1 Solution[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1991(2). |
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| Authors: | Zhu Lihua Shi Wemhao |
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| Institution: | Zhu Lihua Shi Wemhao |
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| Abstract: | The polarographic nature of Te(IV)-crystal violet on the surface of dropping mercury electrode (DME) in HC1 solution is investigated. Experimental results show that the mechanism of what happens on the electrode may be closely related to the concentration of Te(IV). When the concentration is lower than about 80 ppb, the contribution to polarographic wave mainly comes from the hydrogen catalytic wave. When the concentration is higher an adsorption wave may have been superimposed on the hydrogen catalytic wave. The adsorption wave is produced from an electro-active complex of crystal violet with Te(0) formed.on the surface of DME. |
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| Keywords: | Tellurium (IV) Determination Crystal violet Oscillographic po larography Electro-active complex Reduction mechanism |
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