▎ 摘　　要

NOVELTY - A polysiloxane-modified graphene polymer coating functionalized micro-extraction probe based on mercapto-alkenyl click chemistry assembly comprises a micro-extraction probe based on the light-initiated mercapto-alkenyl reaction, through the mercapto-alkenyl click chemistry to sequentially combine the three-dimensional cage structure of the polysiloxane functional monomer, sulfhydryl bridging agent and the modified graphene oxide containing ethylenic functional groups is layer-by-layer assembled bonded, and mercapto-bonded with the sulfhydryl group on the surface of the stainless steel wire to realize the micro-extraction probe with coating immobilization. USE - Polysiloxane modified graphene polymer coating functionalized micro-extraction probe (claimed). ADVANTAGE - The polysiloxane modified graphene polymer coating functionalized micro-extraction probe has excellent specific surface, delocalized pi - pi bond and hydrophobic effect, and adsorption performance for volatile aromatic organic pollutants in environmental water, and can provide pretreatment materials. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the polysiloxane-modified graphene polymer coating functionalized micro-extraction probe involves dispersing graphene oxide in deionized water under ultrasonic action, and ultrasonically treating for 1 hour, dripping methacryloxypropyltrimethoxysilane to the graphene oxide solution within 0.5 hour under ultrasonic conditions, and mechanically stirring at 25 degrees C for 24 hours to obtain graphene oxide with surface alkenyl functionalized groups, treating the stainless steel wire with hydrofluoric acid at 70 degrees C for 5 minutes to form a rough surface, dissolving silver nitrate and glucose in distilled water, dripping 28% ammonia in the silver nitrate solution to form silver oxide precipitation, continue dripping 2.8% ammonia until the precipitate is completely dissolved, then adding the prepared glucose solution, inserting the stainless steel wire into the above solution and react for 3 hours to form a silver-plated stainless steel wire, immersing the silver-plated stainless steel wire in the ethanol solution of 1,6-hexanedithiol for 24 hours to prepare the silver-plated stainless steel wire with surface modified mercapto group, dissolving the methyl methacrylate-based cage oligomeric silsesquioxane, the mercapto bridging agent 1,6-hexanedithiol and the modified graphene oxide containing ethylenic functional groups in a solution composed of n-propanol, polyethylene glycol-400 and 2,2-dimethoxy-2-phenylacetophenone, ultrasonically mixing for 2 minutes to obtain a polysiloxane solution and a mercapto bridging agent solution and modified graphene solution, immersing pretreated stainless steel wire in polysiloxane solution, sulfhydryl bridging agent solution and modified graphene solution in sequence, and placing in the UV crosslinker at 365 nm wavelength, performing photopolymerization for 5 minutes, coating modified graphene-polysiloxane, washing coating with ethanol and drying for 12 hours at 250 degrees C in a nitrogen atmosphere in the gas chromatography inlet.