| 也谈电位溶出分析法理论 |
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| 引用本文： | 常湘滨,谢尤勤.也谈电位溶出分析法理论[J].华南师范大学学报(自然科学版),1987,0(1):1. |
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| 作者姓名： | 常湘滨 谢尤勤 |
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| 作者单位： | 美国衣阿华州立大学化学系
(常湘滨)，华南师范大学化学系(谢尤勤) |
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| 摘 要： | 本文对电位溶出分析法理论进行探索,提出与前人不同的观点.考察了溶出形式(搅拌溶出和静止溶出)对溶出时间方程式的影响,得到了一般化的溶出时间方程式.认为电位溶出过程是由金属原子与氧化剂分别在汞膜和溶液中同时向电极/溶液界面的扩散共同控制.作者认为常数k的物理意义是氧化剂的传质系数,其表达式与溶出形式有关.
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| 关 键 词： | 电位溶出分析法 溶出时间方程式 一般化 传质系数 溶出形式 搅拌溶出 静止溶出 扩散 前置时间 |
FURTHER STUDIES ON THE THEORY OF POTENTIOMETRIC STRIPPING ANALYSIS |
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| Chang Xiangbin.FURTHER STUDIES ON THE THEORY OF POTENTIOMETRIC STRIPPING ANALYSIS[J].Journal of South China Normal University(Natural Science Edition),1987,0(1):1. |
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| Authors: | Chang Xiangbin |
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| Abstract: | The theory of potentiometric stripping analysis has been studied in further depth, and the influences of stripping form on the elapsed time equation have been also discussed. A generalized elapsed time eqution has been obtained. The stripping process is regarded as being controlled both by the diffusion of metal atoms in the mercury film, and the diffusion of oxidant in the solution. The physical significance of the constant k lies in the mass transfer coefficient of the oxidant in the solution, and its expression would be different when different stripping forms are used. |
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| Keywords: | potentiometric strpping analysis elapsed time equation generalization mass transfer coefficient stripping in a stirred solution stripping in a quiet solution pretransient time |
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