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Reference type: Journal
Authors: Lanza F, Sellergren B
Article Title: Method for synthesis and screening of large groups of molecularly imprinted polymers.
Publication date: 1999
Journal: Analytical Chemistry
Volume: 71
Issue: (11)
Page numbers: 2092-2096.
DOI: 10.1021/ac981446p

Abstract: A technique for the synthesis of molecularly imprinted polymers (MIPs) in small scale (similar to 55 mg) coupled with direct in situ processing and batch rebinding evaluation is reported. The primary assessment is based on quantification bq HPLC or UV absorbance measurement of the amount of template released from the polymer in a given solvent. This method allows a rapid screening of the parameters of importance to reach a desired level of binding affinity capacity and selectivity for a given target molecule. This was demonstrated for the triazine herbicide terbutylazine, where an initial screening was performed for the type of functional monomer used in the MIP preparation. Thus among the six functional monomers tested, methyl methacrylate, 4-vinylpyridine, and N-vinyl-alpha-pyrrolidone led to rapid and quantitative extraction whereas methacrylic acid and (trifluoromethyl)acrylic acid led to polymers that retained the template the most. After having established useful functional monomers, a secondary screening for selectivity was performed. In this, nonimprinted blank polymers were prepared and a normal batch rebinding evaluation was performed, The polymer showing the highest selectivity nas the one prepared using methacrylic acid as functional monomer. This polymer was shown to strongly retain chlorotriazines including atrazine when a normal-scale batch of the polymer was evaluated in chromatography

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