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用吸附伏安法测定十二烷基苯磺酸钠水溶液体系的临界胶束浓度
引用本文:韩晓霞,高作宁,白莉.用吸附伏安法测定十二烷基苯磺酸钠水溶液体系的临界胶束浓度[J].宁夏大学学报(自然科学版),2005,26(4):356-359.
作者姓名:韩晓霞  高作宁  白莉
作者单位:宁夏大学,能源化工重点实验室,宁夏,银川,750021;宁夏大学,能源化工重点实验室,宁夏,银川,750021;宁夏大学,能源化工重点实验室,宁夏,银川,750021
基金项目:宁夏自然科学基金资助项目(E1001);宁夏高校科研基金资助项目(210);宁夏大学自然科学基金资助项目(LC0413)
摘    要:以中性红(NR)为探针,根据表面活性剂的增溶作用,采用线性扫描吸附伏安法测定了十二烷基苯磺酸钠(SDBS)的临界胶束浓度(CMC),并初步探讨了中性红在悬汞电极(HMDE)上的反应机理,测得电子转移数n为2,电荷传递系数α为0.611.

关 键 词:临界胶束浓度  十二烷基苯磺酸钠  吸附伏安法  中性红
文章编号:0253-2328(2005)04-0356-04
收稿时间:2005-05-06
修稿时间:2005年5月6日

Determination of Critical Micelle Concentration of Aqueous Sodium Dodecyl Benzenesulfonate (SDBS) Solution by Absorption Voltammetry
Han Xiaoxia,Gao ZuoNing,Bai Li.Determination of Critical Micelle Concentration of Aqueous Sodium Dodecyl Benzenesulfonate (SDBS) Solution by Absorption Voltammetry[J].Journal of Ningxia University(Natural Science Edition),2005,26(4):356-359.
Authors:Han Xiaoxia  Gao ZuoNing  Bai Li
Institution:Key Laboratory of Energy Sources and Chemical Engineering, Ningxia University, Yinchuan 750021 ,China
Abstract:Critical micelle concentration (CMC) of sodium dodecyl benzenesulfonate (SDBS) in aqueous solution has been determined by adsorption voltammetry using neutral red (NR) as a electroactive probe molecule. The mechanism of electrochemical reduction of NR at hanging mercury drop electrode (HMDE) has been explored, and also gives both the electron transfer number n and the charge transfer coefficients a as 2 and 0. 611, respectively.
Keywords:critical micelle concentration  sodium dodecyl benzenesulfonate  adsorption voltammetry  neutral red
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