title: Study of the interactions between phenolic compounds and micellar media using micellar solid-phase microextraction/gas chromatography.
abstract: Solid-phase microextraction coupled to gas-chromatography with mass-spectrometry detection has been employed to establish the sensitivity indexes as well as to study the partition coefficients of phenols into ionic and nonionic micelles. The sensitivity indexes values can be used to estimate qualitatively the affinity between phenols and micelles. The studied phenols, some of them with high environmental interest, include chloro-, alkyl-, and methoxy-phenols. The results obtained in this work, using 85 microm polyacrylate fiber and anionic (sodium dodecyl sulphate), cationic (cetyltrimethylammonium bromide), and nonionic (Triton X-100 and polyoxyethylene-10-lauryl ether) surfactants, indicate that SPME is a viable method for estimating the micelle partition coefficients.
authors.affiliation: Department of Analytical Chemistry, Nutrition and Food Science, University of La Laguna, Campus de Anchieta, Astrofísico Francisco Sánchez s/n, E-38205 La Laguna, Spain.
authors.forename: Verónica
authors.initials: V
authors.lastname: Pino
authors.forename: Francisco J
authors.initials: FJ
authors.lastname: Conde
authors.forename: Juan H
authors.initials: JH
authors.lastname: Ayala
authors.forename: Ana M
authors.initials: AM
authors.lastname: Afonso
authors.forename: Venerando
authors.initials: V
authors.lastname: González
mesh_terms: D002849:Chromatography, Gas / Q000379:methods*; D008823:Micelles; D010636:Phenols / Q000737:chemistry*; D013501:Surface-Active Agents / Q000737:chemistry
chemical_list: D008823:Micelles; D010636:Phenols; D013501:Surface-Active Agents