Deb Nipamanjari, Bagchi Sanjib, Mukherjee Asok K
Department of Chemistry, The University of Burdwan, Golapbag, Burdwan 713104, India.
Spectrochim Acta A Mol Biomol Spectrosc. 2009 Jul 15;73(2):370-3. doi: 10.1016/j.saa.2009.02.038. Epub 2009 Mar 5.
The model for self-association of ethanol in water which was established earlier by compressibility and infrared absorption measurements, has been further supported in the present work by monitoring fluorimetrically the variation of the solvatochromic Kamlet-Taft pi* parameter of ethanol-water mixtures over the entire mole fraction range. This model has been used to interpret the variation of the critical micellisation concentration (cmc) of sodium dodecyl sulphate in the presence of bovine serum albumin (BSA) in aqueous ethanol mixtures (as obtained from the tryptophan fluorescence intensity of BSA) in low ethanol mole fraction range.
先前通过压缩性和红外吸收测量建立的乙醇在水中的自缔合模型，在本工作中通过荧光监测乙醇 - 水混合物的溶剂化显色Kamlet - Taft π*参数在整个摩尔分数范围内的变化得到了进一步支持。该模型已被用于解释在低乙醇摩尔分数范围内，乙醇 - 水混合物中存在牛血清白蛋白（BSA）时十二烷基硫酸钠的临界胶束浓度（cmc）的变化（从BSA的色氨酸荧光强度获得）。
