Household processing factors of acrinathrin, fipronil, kresoxim-methyl and pyridaben residues in green beans

The influence of household washing and boiling processes on the residue levels of acrinathrin, fipronil, kresoxim-methyl and pyridaben in green beans was studied. The study was conducted on green beans samples collected from an experimental greenhouse during a two weeks period after treatment. Analyses were carried out by QuEChERS extraction method and gas chromatography with electron-capture detection (GC/ECD). Pesticide levels in the unprocessed green beans samples where within the range of 0.1 and 4 mg/kg. The washing processing factors were 0.51 for fipronil, 0.32 for pyridaben, 0.59 for acrinathrin and 0.38 for kresoxim-methyl whereas the boiling factor ranged between 0.50 and 0.72.