Extraction method for determining dinotefuran insecticide in water samples.

Dinotefuran is a compound belonging to the third generation of nicotinoid insecticides, and has been effective in combating pests that are resistant to conventional insecticides, such as organophosphates, carbamates, and pyrethroids. This molecule presents high-water solubility (39,830 mg L at 25 °C) compared to other pesticides, which facilitates its drag and leaching to lower soil layers. Therefore, the present study aimed to optimize and validate liquid-liquid extraction with low temperature purification (LLE-LTP) to determine dinotefuran residues in water by high performance liquid chromatography with diode array detection (HPLC-DAD).