Sammendrag

Goal: to detect both known and unknown pesticides and their transformation products in the environment The high-resolution accurate mass Thermo Scientific QExactive instrument in combination with the UltiMate 3000 UHPLC and Thermo Accucore aQ separation column, has for us proven a very robust setup for the screening of 850 pesticides and degradation products with unknown and known retention times in soil, water and food of plant origin. The screening method, with quantification, is used routinely for our research projects. Our screening method covers almost all the pesticides used in Norway. Exceptions are e.g. glyphosate, acidic herbicides and a few biopesticides and growth regulators which require adapted analysis methods, and some pesticides that can only be measured by GC-MS.