Photodegradation of different pesticides in honey and water samples in the in oxygen, and in nitrogen atmosphere was presented. Experiments, performed on spiked samples of honey were conducted using Atlas Suntest simulator. Photodegradation experiments with three different OPs, coumaphos, methyl parathion and fenitrothion, were conducted under three different intensities as 250 W/m2, 500 W/m2 and 750 W/m2. Significant decreases of three OPs’ concentrations were observed. In the case of coumaphos photodegradation in water, the fastest reaction occurred in nitrogen atmosphere, where the formation of an oxo- analogue was also detected, verified and confirmed by laser flash photolysis. The photodegradation of imidacloprid, neoicotinoid insecticide, takes place very fast and several different degradation products have been detected and confirmed by GC-MS. The photodegradation of the ryanodine insecticide chlorantraniliprole under UV-C light, took place fast with half life of 40 sec with the formation of one main product A.
B.04 Guest lecture
COBISS.SI-ID: 5101931