| 吸附伏安法测定表面活性剂的临界胶束浓度 |
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| 引用本文： | 孙德志 赵敬中. 吸附伏安法测定表面活性剂的临界胶束浓度[J]. 分析测试学报, 1994, 13(3): 63-66 |
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| 作者姓名： | 孙德志 赵敬中 |
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| 作者单位： | 山东聊城师范学院化学系 |
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| 摘 要： | 以易溶于有机溶剂，微溶于水的氧化－还原指示剂中性红为探针，用吸附伏安法测定了阴离子表面活性剂的临界胶束浓度。测量的基本原理是：存在于表面活性剂溶液中的微量中性红在悬汞电极上的吸附伏安峰电流对表面活性剂浓度的曲线在临界胶束浓度处有一拐点。
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| 关 键 词： | 胶束浓度 吸附伏安法 表面活性剂 |
Determination of Critical Micella Conentration of Surfactant by Adsorption Voltammetry |
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| Sun Dezhi, Zhao Jingzhong, Wei Xilian, Liu Yupei, Li Min. Determination of Critical Micella Conentration of Surfactant by Adsorption Voltammetry[J]. Journal of Instrumental Analysis, 1994, 13(3): 63-66 |
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| Authors: | Sun Dezhi Zhao Jingzhong Wei Xilian Liu Yupei Li Min |
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| Abstract: | We developed a new method to determine critical micella concentration of anionic surfactant by adsorption voltammetry, using neutral red, as a probe. The basic principle of the method is that: A trace of Neutral red in surfactant solution can be adsorped by hanging meroury electrode, and the adsorption voltammetric peak current have an abrupt decrease when micelles are formed, because neutral red is far more soluble in micelles than in water. |
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| Keywords: | Critical micella concentration Adsorption voltammetry Neutral red. |
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