| 双波长双峰值比光度法测定配合物组成比的原理 |
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| 引用本文： | 张霖霖,张炎霖,黄毓薇,黄文金. 双波长双峰值比光度法测定配合物组成比的原理[J]. 光谱学与光谱分析, 2004, 24(8): 999-1002 |
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| 作者姓名： | 张霖霖 张炎霖 黄毓薇 黄文金 |
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| 作者单位： | 1. 广州大学(麓湖校区)轻化系，广东 广州 510091
2. 黄石医院, 广东 广州 510425 |
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| 基金项目： | 广州大学科研资金资助项目 |
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| 摘 要： | 文章建立了一种测定配合物组成比的简易方法。从理论上严格地推导了双波长双峰值比法测定配合物组成比的理论计算公式，并依据大量实验数据加以验正。计算值与传统方法值相吻合。从原理上和实验中证明该方法切实可行。
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| 关 键 词： | 双峰值比 配合物组成 双波长光度法 |
| 文章编号： | 1000-0593(2004)08-0999-04 |
| 收稿时间： | 2002-10-16 |
Principle of Determining the Composition of Complexes with the Ratio of Double Peak Values at Double Wavelengths by UV Spectrophotometry |
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| ZHANG Lin lin ,ZHANG Yan lin ,HUANG Yu wei ,HUANG Wen jin. Principle of Determining the Composition of Complexes with the Ratio of Double Peak Values at Double Wavelengths by UV Spectrophotometry[J]. Spectroscopy and Spectral Analysis, 2004, 24(8): 999-1002 |
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| Authors: | ZHANG Lin lin ZHANG Yan lin HUANG Yu wei HUANG Wen jin |
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| Affiliation: | 1. Department of Light and Chemistry Engineering, Guangzhou University, Guangzhou 510091，China2. Huangshi Hospital，Guangzhou 510425，China |
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| Abstract: | In this paper, a new method for determining composition ratio of complexes was studied with ratio of double peak values at double wavelengths by UV spectrophotometry. The ratio of the maximum peak value to the minimum peak value and the composition ratio of complexes are the same. The calculation formula for the composition of complexes is deduced in accordance with beer's law and the theory of dissociation equilibrium of complexes: N = (deltaA2epsilonlambda1(MR) - deltaA1epsilonlambda2(MR)/(deltaA2epsilonlambda1(R) - deltaA1epsilonlambda2(R). The calculated value and that obtained by traditional method are agreeable. The method is reliable, simple, visual and quick. |
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| Keywords: | Ratio of double peak values Composition of complexes Double wavelength spectrophotometry |
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