| 用于非水介质分析的新型离子选择电极: 水膜电极的设想及验证 |
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| 引用本文： | 陈方平,章咏华.用于非水介质分析的新型离子选择电极: 水膜电极的设想及验证[J].化学学报,1989,47(2):174-177. |
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| 作者姓名： | 陈方平 章咏华 |
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| 作者单位： | 中国科学院长春应用化学研究所 |
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| 摘 要： | 本文首次提出了一种新型离子选择电极—水膜电极, 采用水溶液作为液膜, 可分析有机溶液中的组分. 这种电极用于非水介质中的分析 , 有其独特的优点, 可直接测量非水溶液中某种离子的平衡活度(或浓度), 对理论研究有较大的意义. 本文提出的水膜电极能应用于不与水相混溶的低介电常数有机溶剂, 扩展了离子选择电极在非水介质中的研究与应用.
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| 关 键 词： | 氯化物 离子选择电极 膜电极 钕化合物 吡唑酮P 环己酮 离子浓度 |
A new type of ion-selective electrode for nonaqueous solution: Assumption of water-membrane electrode |
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| CHEN FANGPING,ZHANG YONGHUA.A new type of ion-selective electrode for nonaqueous solution: Assumption of water-membrane electrode[J].Acta Chimica Sinica,1989,47(2):174-177. |
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| Authors: | CHEN FANGPING ZHANG YONGHUA |
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| Abstract: | A new type of ion-selective electrode based on the water membrane system is proposed. A NdCl3 water membrane electrode has been made to demonstrate its applicability to the determination of Nd(PMBP)3 in cyclohexanone. Conditions for stabilizing potential of ref. electrode in nonaq. system are optimized. It is observed that the potential response on the surface of two immiscible solution is bidirectional and the absolute values of slopes are identical. Nernstian response was exhibited for 3.2 ?10-4-1.0 ?10-2 mol cm-3 Nd(PMBP)3 at pH 5.0-5.7. |
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| Keywords: | CHLORIDE ION SELECTIVE ELECTRODE MEMBRANE ELECTRODES NEODYMIUM COMPOUNDS PYRAZOLONE P CYCLOHEXANONE ION CONCENTRATION |
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