| 用HMO方法研究有机络合剂的结构因素与原子吸收光谱增感效应间的关系 |
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| 引用本文： | 祝心德,周忠信,张曼征.用HMO方法研究有机络合剂的结构因素与原子吸收光谱增感效应间的关系[J].华中师范大学学报(自然科学版),1988(4). |
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| 作者姓名： | 祝心德 周忠信 张曼征 |
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| 作者单位： | 华中师范大学化学系
(祝心德)，湖北省化学研究所
(周忠信)，湖北省化学研究所(张曼征) |
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| 摘 要： | 本文用HMO方法计算了一系列有机络合剂分子的量子化学参数。根据前沿原子的电荷密度Q及其与相邻原子间的键级P,考察了有机络合剂对钇原子吸收光谱分析的影响,提出了钇原子吸收光谱的相对吸光度分别与有机络合剂分子的Q和P的关系式,指出了增减PH_s与络合剂的电离常数有关。
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| 关 键 词： | 有机络合剂 原子吸收光谱 增感机理 键级 电荷密度 |
STUDIES ON THE RELATIONSHIP BETWEEN THE STRUCTURAL FACTORS OF ORGANIC COMPLEXING AGENTS AND THEIR ENHANCEMENT EFFECT OF ATOMIC ABSORPTION SPECTRA WITH HUCKEL MOLECULES ORBITAL METHOD |
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| Zhu Xinde.STUDIES ON THE RELATIONSHIP BETWEEN THE STRUCTURAL FACTORS OF ORGANIC COMPLEXING AGENTS AND THEIR ENHANCEMENT EFFECT OF ATOMIC ABSORPTION SPECTRA WITH HUCKEL MOLECULES ORBITAL METHOD[J].Journal of Central China Normal University(Natural Sciences),1988(4). |
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| Authors: | Zhu Xinde |
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| Abstract: | The quantum chemistry parameters of 14 organic complexing agents molecules were calculated with HMO method. Accoring to the charge density of the frontier atoms and the bond order between the frontier atom and its neighbourhood atom, the enhancement effect of organic eomplexing agents on atomic absorption spectrophotometric analysis of ytterbium element is discussed. It is shown that there are relationships between absorbance and charge density Q, bond orderp, respectively. And the starting pH of enhancement pHs related to the ionization constants of organic complexing agents. |
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| Keywords: | Organic complexing agent atomic absorption spectra bond order electron density |
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