Chemometric Approach to Pesticide Residue Analysis in Surface Water

Dimethachlor is an herbicide used for oilseed rape protection. Previous studies have demonstrated its high mobility in the soil, which could lead to water contamination. This research aimed determine occurrence of dimethachlor and metabolites (dimethachlor ethanesulfonic acid ESA oxalamic OA) surface using a recently developed analytical method. article one first document metabolites’ presence samples. The samples were collected from Danube river Tisza river. quantitative determination obtained extracts was done by high-performance liquid chromatography. Descriptive statistical methods, including correlation analysis, cluster principal component analyses, utilized analyze method validation experimental results. In addition, artificial neural network (ANN) model applied as optimization tool. ANN adequately predicted observed variables, suggesting optimum results at pH value 7, spike 1, injection volume equal 0.5 ?L. average concentrations River 1.51 µg/L OA 0.01 ESA, 0.63 DMC, while chloroacetanilide herbicides detected 1.43 OA, 0.08 1.82 DMC.