▎ 摘　　要

A graphene oxide reinforced polymeric ionic liquids monolith was obtained by copolymerization of graphene oxide doped 1-(3-aminopropyl)-3-(4-vinylbenzyl) imidazolium 4-styrenesulfonate monomer and 1,6-di-(3-vinylimidazolium) hexane bihexafluorophosphate cross-linking agent. Coupled to high-performance liquid chromatography, the monolith was used as a solid-phase microextraction sorbent to analyze several phenolic compounds in aqueous samples. Under the optimized extraction and desorption conditions, linear ranges were 5-400 mu g/L for 3-nitrophenol, 2-nitrophenol, and 2,5-dichlorophenol and 2-400 mu g/L for 4-chlorophenol, 2-methylphenol, and 2,4,6-trichlorophenol (R-2 = 0.9973-0.9988). The limits of detection were 0.5 mu g/L for 3-nitrophenol and 2-nitrophenol and 0.2 mu g/L for the rest of the analytes. The proposed method was used to determine target analytes in ground-water from an industrial park and river water. None of the analytes was detected. Relative recoveries were in the range of 75.5-113%.