▎ 摘　　要

NOVELTY - The utility model relates to the technical field of agricultural product detection. The invention claims a pesticide residue detecting device based on graphene solid phase extraction, comprising a mixing cavity, the bottom of the mixing cavity is fixedly installed with a conical structure, the bottom of the conical structure fixedly connected with with a liquid outlet, the liquid outlet is provided with a switch valve, the stirring device is inserted and matched with the first supporting plate, the upper part of the stirring device is fixedly installed with a stirring structure top cover, the top part of the stirring structure top cover is fixedly installed with a motor, the motor rotating shaft is fixedly connected with the second rotating shaft, the second rotating shaft is located on the inner side of the stirring structure top cover and is fixedly installed with a second gear, the second gear is engaged with the first gear, the first gear is fixedly installed on the first rotating shaft, the lower part of the first rotating shaft is provided with a first stirring rod, the lower part of the second rotating shaft is provided with a second stirring rod. The pesticide residue detecting device based on graphene solid phase extraction provided by the utility model is convenient for cleaning and cleaning, which can effectively avoid the residual in the mixing cavity.