title: Separation of chiral polychlorinated biphenyls by micellar electrokinetic chromatography using beta- and gamma-cyclodextrin mixtures in the separation buffer.
abstract: Chiral polychlorinated biphenyls (PCBs) 45, 84, 88, 91, 95, 132, 136, 139, 149, 171, 183 and 196 were separated each in its two enantiomers by cyclodextrin-modified micellar electrokinetic chromatography (CD-MEKC). Mixtures of beta- and gamma-cyclodextrins were used as chiral modifiers in a 2-(N-cyclohexylamino)ethanesulphonic acid (CHES) buffer containing urea and sodium dodecyl sulphate (SDS) micelles. Separations of multicomponent mixtures of PCBs into their enantiomers were also performed. A mixture of PCBs 45, 88, 91, 95, 136, 139, 149 and 196 was separated into all sixteen enantiomers in an analysis time of approx. 35 min.
authors.affiliation: Departamento de Química Analítica, Facultad de Ciencias, Universidad de Alcalá de Henares, Madrid, Spain.
authors.forename: M L
authors.initials: ML
authors.lastname: Marina
authors.forename: I
authors.initials: I
authors.lastname: Benito
authors.forename: J C
authors.initials: JC
authors.lastname: Díez-Masa
authors.forename: M J
authors.initials: MJ
authors.lastname: González
mesh_terms: D002846:Chromatography, Affinity / Q000379:methods*; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D005069:Evaluation Studies as Topic; D006540:Herbicides / Q000032:analysis*; D010936:Plant Extracts / Q000302:isolation & purification*; D012997:Solvents; D013056:Spectrophotometry, Ultraviolet; D014227:Triazines
chemical_list: D006540:Herbicides; D010936:Plant Extracts; D012997:Solvents; D014227:Triazines