title: Optimization of the cyclodextrin-assisted capillary electrophoresis separation of the enantiomers of phenoxyacid herbicides.
abstract: An ethylcarbonate derivative of beta-cyclodextrin (beta-CD) with three substituents per molecule, hydroxypropyl-beta-CD and native alpha-CD have been tested as resolving agents in the capillary zone electrophoresis (CZE) separation of the four enantiomers of the herbicides mecoprop and dichlorprop. The performances of the three compounds have been quantified by means of two-levels full factorial design and the inclusion constants were calculated from CZE migration time data. Possible structure of inclusion complexes have been proposed, on the basis of molecular mechanics simulations.
authors.affiliation: Dipartimento di Scienze e Tecnologie Avanzate, University del Piemonte Orientale A. Avogadro, Alessandria, Italy.
authors.forename: O
authors.initials: O
authors.lastname: Zerbinati
authors.forename: F
authors.initials: F
authors.lastname: Trotta
authors.forename: C
authors.initials: C
authors.lastname: Giovannoli
mesh_terms: D015084:2,4-Dichlorophenoxyacetic Acid / Q000031:analogs & derivatives* / Q000302:isolation & purification; D008456:2-Methyl-4-chlorophenoxyacetic Acid / Q000031:analogs & derivatives* / Q000302:isolation & purification; D003505:Cyclodextrins / Q000737:chemistry*; D019075:Electrophoresis, Capillary / Q000379:methods*; D006540:Herbicides / Q000302:isolation & purification*; D013237:Stereoisomerism; D047392:beta-Cyclodextrins
chemical_list: D003505:Cyclodextrins; D006540:Herbicides; D047392:beta-Cyclodextrins; D015084:2,4-Dichlorophenoxyacetic Acid; C008340:mecoprop; D008456:2-Methyl-4-chlorophenoxyacetic Acid; C010571:dichlorprop; C031215:betadex