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Abstract: 2,4,6-trichlorophenol molecularly imprinted suspension polymer has been prepared and applied to the molecularly imprinted micro-solid-phase extraction procedure for selective preconcentration of phenolic compounds from environ-mental water samples. The influence of functional monomer, cross-linker, polymerization condition, porogen, and the ratio of template molecule and functional monomer to cross-linker on the size of the obtained particles were investi-gated. It was found that methyacrylic acid as functional monomer, divinylbenzene as cross-linker, the molar ratio of template molecule and functional monomer to cross-linker was 1:4:20, the amount of AIBN was 100 mg, ultraviolet radiation at 365 nm were the optimal conditions, and at these conditions, the polymers had the best adsorption effi-ciency and had the monodispersity of 2 - 3 μm microsphere particles. The characteristics of the MIMSPE method were valid by high performance liquid chromatography. This MIMSPE-HPLC method has been successfully applied to the direct preconcentration and determination of phenolic compounds (phenol, 4-chlorophenol, 2,4-dichlorophenol, 2,4,6- trichlorophenol, pentachlorophenol) in environmental water samples.
Template and target information: 2,4,6-trichlorophenol, phenol, 4-chlorophenol, 2,4-dichlorophenol, 2,4,6- trichlorophenol, pentachlorophenol
Author keywords: suspension polymerization, Molecularly Imprinted Micro-Solid-Phase Extraction, 2,4,6-Trichlorophenol, phenolic compounds, high performance liquid chromatography