| 双波长光度法配合物组成和稳定常数的测定 |
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| 引用本文： | 周杰,邹时复.双波长光度法配合物组成和稳定常数的测定[J].分析试验室,1995,14(1):25-28. |
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| 作者姓名： | 周杰 邹时复 |
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| 作者单位： | 山东农业大学基础部，山东大学化学系 |
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| 摘 要： | 利用双波长光度法的选择性这一特点，消除体系中有关物种的干扰，直接测定配体的平衡浓度，基于此结合溶液中物种的分布系数，建立了测定配合物组成和稳定常数的方法，手续简便可靠，试用于Ｃｕ（Ⅱ）－５－Ｂｒ－ＰＡＤＡＰ体系获得了满意的结果。
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| 关 键 词： | 双波长 光度法 稳定常数 铜 PADAP 配合物 |
Determination of the Composition and Sta-bility Constant of Complexes by Dual Wave-length Spectrophotometric Method |
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| Zhou Jie.Determination of the Composition and Sta-bility Constant of Complexes by Dual Wave-length Spectrophotometric Method[J].Chinese Journal of Analysis Laboratory,1995,14(1):25-28. |
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| Authors: | Zhou Jie |
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| Abstract: | he dual wavelength spectrophotometricmethod was used to determine directly the equi-librium concentration of the ligand in a solution. Based on this and according to the distributioncoefficients of the species in a solution,we havedeveloped the new method which can be used forthe determination of the composition and stabili-ty constant of complexes. The method is simpleand reliable,it has already been used in the Cu-5-Br-PADAP system with satisfactory results. |
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| Keywords: | Dual wavelength spectropho-tometric method stability constant copper 2-(5-bromo-2-pyridylazo)-5-dimethylaminophenol |
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