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Surfactant solubilization behavior via headspace analysis
Author(s) -
Labows John N.
Publication year - 1992
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02635873
Subject(s) - micelle , solubility , pulmonary surfactant , solubilization , chemistry , partition coefficient , critical micelle concentration , chromatography , matrix (chemical analysis) , organic chemistry , aqueous solution , biochemistry
Automatic headspace gas chromatography (AHGC) has been used to define the solubilization behavior of volatile organics in typical detergent surfactants. The amount of a component in the headspace at equilibrium and amount available for perception is inversely related to its solubility in the surfactant micelles. AHGC is used to determine: i) the solubilization site within the micelle for a solute; ii) the effect of the solute on the critical micelle concentration; iii) the solute partition coefficient (K); and iv) the effect of cosolvents on the critical micelle concentration. This approach offers the ability to compare solubility behavior in a complex matrix along with the advantages of direct sampling and the simultaneous analysis of many components.