Determination of Acetamipride and Profenofos Residues in Cabbage Using QuECHERS Method in Sohag, Upper Egypt

Abstract

Our investigation included cabbage leaves for insecticides residue analysis. We had been treated by the formulation acetamipride (Mosiplan 20% SP) and profenofos (Ictacron 72% EC) and residues were estimated by HPLC. The findings demonstrated that for each insecticide, a different amount of residues were recorded over the trial period. Acetamipride and profenofos had early deposits of 0.88 and 1.85 ppm on and in unwashed cabbage leaves, respectively. Acetamiprid and profenofos residues on unwashed cabbage leaves were 0.50 ppm and 1.07 ppm, respectively, after the first day of spraying. These reduced to 0.11 and 0.39 ppm on washed cabbage with tap water. To reduce the concentration of pesticide residues in cabbage leaves, it is vital to wash the leaves with tap water as residue loss increases with the amount of time that has passed after spraying began until the end of the trial period. It indicates that acetamiprid was degraded faster than profenofos. These variations in the rate of disappearance of various insecticides could be related to variations in chemical formulation and structure as well as application rates. The safety time after which cabbage plants sprayed with acetamipride and profenofos may be picked up was the first and seventh days, respectively, according to maximum residues limits (MRLs).