MULTIRESIDUE SOLID-PHASE EXTRACTION FOR TRACE-ANALYSIS OF PESTICIDES AND THEIR METABOLITES IN ENVIRONMENTAL WATER

Despite the advances in separation and quantification techniques, the sample preparation is still the weakest link and the time determining step in the whole procedure for trace-analysis of pesticides. In order to reduce the price and time of environmental monitoring, it is relev ant to perform multiresidue analysis which includes modern polar pesti cides and their degradation products. Multiresidue solid-phase extract ion is described taking into account the diversity of chemical functio nal groups of pesticides with varying polarity and physico-chemical pr operties.