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Sensitive analyses of agricultural chemicals by capillary electrochromatography
Abstract:Capillary electrochromatography using a monolithic matrix was employed to develop a rapid and highly efficient separation methodology for the analyses of mixtures of agrochemical importance. Using this method, ppm‐ppb detection limits for urea, carbamate, and phenoxy acid herbicides were achieved without a preconcentration technique. The detection limits were further decreased to low‐ppb levels for the same class of compounds using an on‐column preconcentration technique.
Keywords:Monolithic columns  Capillary electrochromatography  Photodiode array detection  Herbicides and pesticides
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