Analysis of imidacloprid and penconazole residues during their pre-harvest intervals in the greenhouse cucumbers by HPLC–DAD

The purpose of this research is to investigate the residues of imidacloprid and penconazole in cucumbers, since pesticides have been highly demanded in the production of greenhouse crops. According to Codex Alimentarius Commission statement, the maximum residue limits (MRLs) for imidacloprid and penconazole in cucumber are 1 and 0.06 mg kg−1, respectively. To have samples under control, cucumbers were planted in a greenhouse. The treatments were...