EN
The aim of investigation was to elaborate an analytical method of determination of chloroacetanilide herbicide active substances: propachlor, dimethachlor, alachlor, propisochlor, metolachlor and metazachlor in soil, plant and water samples. The analytical procedure consist of three elementary processes: extraction of analyzed substances from matrix, cleaning of extract using SPE (Solid Phase Extraction) column with C18 active solid and final determination using gas chromatography with ECD detection. The detection limit (LOD) of all tested chloroacetanilide compounds was 0.0002 mg/kg (for soil and plant samples) and 0.00002 mg/kg for water samples. The range of fortified recoveries of the method was 90–98%.