▎ 摘　　要

NOVELTY - The method involves adding certain amount of graphene to 10 to 1000 ml of water sample containing organophosphorus pesticide. The water sample is rapidly passed through a filter to pump water. The organophosphorus pesticide enriched on the graphene is eluted by 2-15 ml of eluting solvent on the filter. Eluent is passed through 2-5 g of anhydrous magnesium sulfate or anhydrous sodium sulfate. The eluent is evaporated at temperature of 30-70 degrees centigrade. Volume fixed sample is detected by a detection instrument. Used-graphene is washed by an organic solvent. USE - Method for detecting residual organophosphorus pesticide in water. ADVANTAGE - The graphene can be used as absorption material, and has strong absorption ability. The method enables reducing material resource and preparation cost, avoiding repeat extraction, saving processing cost, improving detection accuracy, and increasing recovery rate. The method enables the pesticide to be environment-friendly. DESCRIPTION OF DRAWING(S) - The drawing shows graphical illustration of a method for detecting residual organophosphorus pesticide in water.