AbstractCapillary electrophoresis was applied to the analysis of a mixture of triazine herbicides of environmental interest. Micellar electrokinetic capillary chromatography (MECC) proved to be satisfactory for the separation of triazines, providing high efficiency in short analysis times. Several electrophoretic parameters were investigated: injection conditions, pH and buffer concentration, surfactant concentration and applied voltage. The optimized MECC method was applied to the determination of these compounds in water samples; using a solid-phase concentration step, herbicide concentrations lower than 0.2 ng/ml can be measured, the relative standard deviations being about 20%.
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