Separation of four mixtures of pesticides by pressurized planar electrochromatography (PPEC)

J AOAC Int. 2010 Nov-Dec;93(6):1757-67.

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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acetonitriles
  • Chromatography, High Pressure Liquid
  • Chromatography, Thin Layer / instrumentation*
  • Chromatography, Thin Layer / methods*
  • Complex Mixtures / analysis
  • Databases, Factual
  • Pesticides / analysis*
  • Reference Standards
  • Reproducibility of Results
  • Solvents

Substances

  • Acetonitriles
  • Complex Mixtures
  • Pesticides
  • Solvents
  • acetonitrile