吸附伏安法测定阳离子表面活性剂的临界胶束浓度  

Determination of critical micelle concentration of cationic surfactant by adsorption voltammetry

作　　者：魏西莲[1] 赵敬中[1] 尹宝霖[1] 孙德志[1] 石成法[1] 

机构地区：[1]聊城师范学院化学系

出　　处：《化学试剂》1998年第3期160-162,共3页Chemical Reagents

摘　　要：以中性红为探针，用吸附伏安法测定了溴化十六烷基三甲铵的临界胶束浓度。A new method was developed to determine the critical micelle concentration of cetyltrimethyl ammonium bromide (CTAB) by adsorption voltammetry using neutral red as a probeThe basic principle of the method is that trace neutral red in surfactant solution can be adsorbed by a hanging mercury electrode,and the adsorptive voltammetric peak current has a turning point when micelles are formed because neutral red is far more soluble in micelles than in waterThe turning point is the critical micelle concentration of the surfactant

关 键 词：CMC 吸附伏安法 阳离子 表面活性剂 CTAB 测定 

分 类 号：O647.2[理学—物理化学]