双十八烷基二甲基氯化铵水溶液CMC值的测定  

Determination of DODAC CMC in an aqueous solution

作　　者：秦晓琴[1] 候大庆 高春光[1] 赵永祥[1] 

机构地区：[1]山西大学化学化工学院,太原030006 [2]山西省产品质量监督检验所,太原030012

出　　处：《分析试验室》2007年第2期40-42,共3页Chinese Journal of Analysis Laboratory

基　　金：山西省教委应用开发(200304);山西省自然科学基金(20041017)项目资助

摘　　要：采用电导法和荧光法测定了阳离子表面活性剂—双十八烷基二甲基氯化铵(DODAC)的临界胶束浓度(CMC),在温度为14℃时,电导法测得DODAC溶液的临界胶束浓度为5.24×10-5mol/L,荧光法测得DODAC溶液的临界胶束浓度为9.67×10-5mol/L。The critical micelle concentration （CMC） of dioctadecyldimethyammonium chloride （DODAC） was determined via molar-conductivity method and fluorescence of DODAC-alpha-bromo-naphthalene. The ultrasonic was employed to prepare DODAC micelle system. And the concentration of alpha-bromo-naphthalene was 1×10^-4 mol/L. The CMC determined was 5.24×10^-5 mol/L and 9.67×10^-5 mol/L respectively.

关 键 词：双十八烷基二甲基氯化铵(DODAC) 临界胶束浓度(CMC) 电导法 荧光法 

分 类 号：O65[理学—分析化学]