Department of Applied Chemistry, College of Science, China Agricultural University, 100193, Beijing, People's Republic of China.
Abstract:
Emamectin benzoate residue dynamics and final residues in supervised field trials at GAP conditions were studied. An HPLC–MS analytical method for the determination of emamectin benzoate in cabbage and soil was developed. The recoveries of emamectin benzoate on cabbage and soil were observed from 71 % to 102 % at fortification levels of 0.01, 0.1 and 1.0 mg/kg. The reported limit of quantification (LOQ) was found to be 0.01 mg/kg. The dissipation experiments showed the half-lives (T1/2) of emamectin benzoate was around 1 days. At pre-harvest intervals (PHI) of 7 and 12 days, emamectin benzoate residue was observed to be below the LOQ.
