▎ 摘　　要

NOVELTY - Graphene/silica gel solid phase extraction materials, is claimed. The preparation of extraction material comprises e.g. preparing the graphene colloid solution by adding graphene oxide into distilled water in ultrasonic dispersion, adding sodium polystyrene sulfonate, and reacting to obtain the grapheme oxide colloid solution, then reducing to obtain the graphene oxide colloid solution graphene colloid solution, and taking graphene silica gel solid phase extraction material prepared in the ultrasonic dispersion, of silicone glue adding pH adjusting solution into distilled water. USE - The graphene/silica gel solid phase extraction material is useful for carrying out enrichment and separation of benzene ring-containing carbamate pesticide residues. ADVANTAGE - The extraction material achieves carbamate pesticide in plant and farm which produces good absorption, through recycling experiment proves that the material the carbamate pesticide has rapid adsorption speed, has high adsorption efficiency, good detection repeatability, high extraction material stability. DETAILED DESCRIPTION - Graphene/silica gel solid phase extraction materials, is claimed. The preparation of extraction material comprises (i) eparing the graphene colloid solution by adding graphene oxide into distilled water in ultrasonic dispersion, adding sodium polystyrene sulfonate, and reacting to obtain the grapheme oxide colloid solution, then reducing to obtain the graphene oxide colloid solution graphene colloid solution, where the mass ratio of graphene oxide, sodium polystyrene sulfonate and distilled water is 0.5-3:0.05-0.3:100; and (ii) taking graphene silica gel solid phase extraction material prepared in the ultrasonic dispersion, of silicone glue adding pH adjusting solution to the distilled water to 2-4, taking grapheme colloid solution obtained in the step (i), adding in to silicone rubber suspension to obtain mixed solution, mixing solution, centrifuging, washing and drying, where the mass ratio of grapheme colloid solution, silicone gel and distilled water is 0.5-1.5:1-3:100. An INDEPENDENT CLAIM is also included for use of the graphene/silica gel solid phase extraction material in carrying out enrichment and separation of benzene ring-containing carbamate pesticide residues.