title: Separation of four mixtures of pesticides by pressurized planar electrochromatography (PPEC).
abstract: Examples of separations of four mixtures of pesticides by pressurized planar electrochromatography (PPEC) under different operating conditions are presented. The samples were separated on a prewetted RP-18W chromatographic plate in a system with acetonitrile-buffer as the mobile phase. A potential of 2.3 kV was applied to a 10 cm long plate to create the electric field. Reproducible retention of pesticides was obtained during PPEC in the closed system when the sorbent layer of the plate was prewetted and equilibrated with the mobile phase. The reported separations of pesticides by PPEC are over 10 times faster than the corresponding separations by TLC.
authors.affiliation: Medical University of Lublin, Faculty of Pharmacy, Medical Analytics Division, Department of Physical Chemistry, 6 Staszica St, 20-081 Lublin, Poland. tomasz.tuzimski@umlub.pl
authors.forename: Tomasz
authors.initials: T
authors.lastname: Tuzimski
mesh_terms: D000097:Acetonitriles; D002851:Chromatography, High Pressure Liquid; D002855:Chromatography, Thin Layer / Q000295:instrumentation* / Q000379:methods*; D045424:Complex Mixtures / Q000032:analysis; D016208:Databases, Factual; D010575:Pesticides / Q000032:analysis*; D012015:Reference Standards; D015203:Reproducibility of Results; D012997:Solvents
chemical_list: D000097:Acetonitriles; D045424:Complex Mixtures; D010575:Pesticides; D012997:Solvents; C032159:acetonitrile