Separation of cresols using coelectroosmotic capillary electrophoresis.
A new method of capillary electrophoresis was established to separate the three cresol isomers. Cresols are of importance due to their use as insecticides, precursors of various dye intermediates, resins, fire-resistant fluids and other purposes. Reversion of the electroosmotic flow was carried out by a polycationic ammonium compound. The separations were carried out at high pH values (pH 12) to obtain complete dissociation of the cresols and short times of analysis (less than 5 min) through fast migration of the cresol towards the anode. Various aliphatic alcohols were added to improve peak shape and resolution.
Masselter
S M
SM
Institut für Radiochemie, Leopold-Franzens-Universität Innsbruck, Austria.
Zemann
A J
AJ
Bobleter
O
O
D000433:1-Propanol; D002197:Capillary Action; D003408:Cresols / Q000737:chemistry / Q000302:isolation & purification*; D004563:Electrochemistry; D004586:Electrophoresis / Q000379:methods*; D000431:Ethanol; D006583:Hexadimethrine Bromide; D006863:Hydrogen-Ion Concentration; D009995:Osmosis; D012044:Regression Analysis; D012997:Solvents
D003408:Cresols; D012997:Solvents; D000431:Ethanol; D006583:Hexadimethrine Bromide; D000433:1-Propanol