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荧光法测定N-(α-烷苯氧基)十四酰基牛磺酸钠的临界胶束浓度

CMC Determination of Sodium N-(α-Alkylphenoxy)-Tetradecanoyltaurate by Fluorescence Method

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【Author】 YAN Feng1,2,WANG Xian-guang1,2,CAO Xu-long3,SONG Xin-wang3,LI Zhen-quan3,ZHAO Sui1,AN Jing-yi1,YU Jia-yong1(1.Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100080,P.R.China;2.Graduate University of the Chinese Academy of Sciences,Beijing 100039,P.R.China;3.Geological Research Institute of Shengli Oilfield Co.Ltd,SINOPEC,Dongying 257015,Shandong,P.R.China)

【机构】中国科学院理化技术研究所；中国石化胜利油田分公司地质科学研究院；中国科学院理化技术研究所北京100080；中国科学院研究生院；北京100039；北京100080；山东东营257015；

【摘要】研究了一类以苯氧基作疏水支链的新型阴离子表面活性剂——N-(α-烷苯氧基)十四酰基牛磺酸钠(SAPTT)水溶液的紫外吸收光谱、探针(芘)稳态荧光发射光谱及自身稳态荧光发射光谱性质.研究结果表明,荧光探针(芘)法和自身稳态荧光法可用来测定这类表面活性剂的临界胶束浓度(CMC),且测定结果与表面张力法(吊片法)接近;与荧光探针(芘)法相比,对于所研究体系,自身稳态荧光法的灵敏度和准确性均较高,所测得CMC结果与表面张力法(吊片法)能较好地吻合.更多还原

【Abstract】 Ultraviolet absorption spectra,probe(pyrene) fluorescence emission spectra,and self-fluorescence emission spectra of aqueous solution of sodium N-(α-alkylphenoxy)-tetradecanoyltaurate(SAPTT) were investigated.It indicated that both probe(pyrene) fluorescence emission spectra method and self-fluorescence emission spectra method could be used to determine the critical micelle concentration(CMC) of sodium N-(α-alkylphenoxy)-tetradecanoyltaurate.The self-fluorescence emission spectra method was compared with probe(pyrene) fluorescence emission spectra method and Wilhelmy-plate(surface tension) method,and its sensitivity and accuracy was evident.更多还原

【关键词】表面活性剂； N-(α-烷苯氧基)十四酰基牛磺酸钠；自身稳态荧光发射；稳态荧光探针法；临界胶束浓度；
【Key words】 surfactant； sodium N-(α-alkylphenoxy)-tetradecanoyltaurate； self-fluorescence emission spectra； probe fluorescence emission spectra； critical micelle concentration；

【文献出处】感光科学与光化学 ,Photographic Science and Photochemistry , 编辑部邮箱 ,2007年02期

【分类号】TQ423.11
【被引频次】34
【下载频次】896

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