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.
Ultraviolet absorption spectra, probe （pyrene） fluorescence emission spectra, and self- fluorescence emission spectra of aqueous solution of sodium N-（α-alkylphenoxy）-tetradecanoykaurate （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 miceUe 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.
出处
《感光科学与光化学》
EI
CSCD
2007年第2期115-122,共8页
Photographic Science and Photochemistry
