Title of article
Study of influence of ionic additives to AOT reverse microemulsions by liquid chromatography, IR and UV–visible spectroscopy
Author/Authors
T.Butkhuzi and Chaladze، نويسنده , , R. and Lominadze، نويسنده , , N. and Rukhadze، نويسنده , , M. and Gvaramia، نويسنده , , M. and M.Kurtanidze and Bezarashvili، نويسنده , , G. C. Sigua، نويسنده , , K.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2014
Pages
7
From page
98
To page
104
Abstract
Reverse micellar mobile phases based on sodium bis(2-ethylhexyl) sulfosuccinate (AOT) were used as mobile phases in HPLC. The chromatographic behavior of the model compounds was studied on the basis of reverse micellar mobile phases modified by salt additives. Structural changes of water pools of reverse micelles depending from AOT concentration in the presence or absence of structure-making and structure-breaking ions was investigated by IR-Spectroscopy. The OH stretching vibrational absorption spectra in the region of 3000–3800 cm−1 were fitted into three subpeaks with a Monte Carlo method. The binding of o-nitroaniline (o-NA) to the micelles of AOT was determined by UV–visible spectroscopy. The different influence of kosmotropic and chaotropic anions on the binding constant Kb was revealed.
Keywords
Reverse Micelle , Confined water , Hofmeister series , O-nitroaniline , OH stretching , AOT
Journal title
Colloids and Surfaces A Physicochemical and Engineering Aspects
Serial Year
2014
Journal title
Colloids and Surfaces A Physicochemical and Engineering Aspects
Record number
1945422
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