| 冠醚载体离子电极的选择特性研究 |
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| 引用本文： | 杨云慧 奚治文. 冠醚载体离子电极的选择特性研究[J]. 高等学校化学学报, 1991, 12(6): 742-744 |
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| 作者姓名： | 杨云慧 奚治文 |
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| 作者单位： | 云南教育学院，四川大学化学系，四川大学化学系，四川大学化学系 昆明 650031 |
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| 摘 要： | 阴离子选择电极选择性系数随干扰离子r_j/z_j的变化规律已有报道,但冠醚为中性载体的金属离子电极的选择性系数规律未见报道。本文采用不同桥间结构的11种苯并双冠醚作为中性载体,从钾电极出发探讨了不同冠醚电极选择性系数与干扰离子r_j/z_j间的关系;并以4种烃型双冠醚为中性载体,分别考察了它们对Li~+、Rb~+、Cs~+、Ag~+、Ba~(2+)离子的响应规律。 1 实验部分
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| 关 键 词： | 冠醚 离子选择电极 选择特性 载体 |
Studies on the Rule of Selectivity Coefficients of Ion-Selective Electrodes with Crown Ethers Neutral Carrier |
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| Yang Yun-hui Xi Zhi-wen,Tian Bao-min,Huang Shu. Studies on the Rule of Selectivity Coefficients of Ion-Selective Electrodes with Crown Ethers Neutral Carrier[J]. Chemical Research In Chinese Universities, 1991, 12(6): 742-744 |
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| Authors: | Yang Yun-hui Xi Zhi-wen Tian Bao-min Huang Shu |
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| Abstract: | In this paper, a formula lg-B(A, B, C: constants; r_j: radius of the interfering ion; z_j: charge of the interfering ion) is given which describes the dependence of selectivity coefficients of crown ether electrode on r_i/z_j of interfering ions by means of potassium electrodes based on eleven alkanodioyl polymethylene and 2, 2'- dihydroxy polymethylene bis ( 4'- benzo- 15-crown-5). The results of response of Li~+, Ba~(2+), Ag+, Rb+, Cs+ of electrodes/with four polymethylene bis(4'-benzo-15-C-5) as the neutral carriers proved by the above formula was correct. |
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| Keywords: | Crown ether Ion-selective electrode Rule of selectivity coefficients |
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