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Preparation of molecularly imprinted polymeric fibers using a single bifunctional monomer for the solid‐phase microextraction of parabens from environmental solid samples

In this study, molecularly imprinted polymer fibers for solid‐phase microextraction have been prepared with a single bifunctional monomer, N,O‐bismethacryloyl ethanolamine using the so called “one monomer molecularly imprinted polymers” method, replacing the conventional combination of functional monomer and cross‐linker to form high fidelity binding sites. For comparison, imprinted fibers were prepared following the conventional approach based on ethylene glycol dimethacrylate as cross‐linker and methacrylic acid as monomer. The recognition performance of the new fibers was evaluated in the solid‐phase microextraction of parabens, and from this study it was concluded that they provided superior performance over conventionally formulated fibers. Ultimately, real‐world environmental testing on spiked solid samples was successful by the molecularly imprinted‐solid phase microextraction of samples, and the relative recoveries obtained at enrichment levels of 10 ng g−1 of parabens were within 78–109% for soil and 83–109% for sediments with a relative standard deviation < 15% (n = 3).

This article is protected by copyright. All rights reserved

Authors:   Myriam Díaz‐Álvarez, Stephen P. Smith, David A. Spivak, Antonio Martín‐Esteban
Journal:   Journal of Separation Science
Year:   2015
Pages:   n/a
DOI:   10.1002/jssc.201500967
Publication date:   19-Nov-2015
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