Inventors: Wu JA, Wan LS, Zeng QB, Yang YF, Xu ZK
Patent Title: Preparation method and application of sulfonylureas herbicide molecular engram superfine fibre film
Publication date: 2008
Publication number: CN101185853

Abstract: The invention discloses the preparation method of a sulfonylurea herbicide molecular imprinting ultra fine fiber membrane, which comprises the following steps: (1) mixing acrylonitrile, alkenyl metalloporphyrin, an auxiliary function monomer, an initiator and a solvent together for polymerization; (2) pouring the reaction solution into a non solvent after the polymerization for precipitation separation to get a polymer, then the non solvent is adopted to extract and dry the polymer after grinding and dissolving the dried polymer and template molecule after being mixed together in N, N-dimethylformamide to get an uniform solution; (3) electrostatic spinning is conducted to the uniform solution gotten by the step (2) and drying to get the sulfonylurea herbicide molecular imprinting ultra fine fiber membrane after washing and eliminating the template molecule.; The molecular imprinting ultra fine fiber membrane prepared by the invention is characterized by high sensitivity, great adsorption capacity, high separation efficiency and so on and has practical value in the application of the sulfonylurea herbicide in environmental samples testing, separating and purifying.
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