期刊
JOURNAL OF SEPARATION SCIENCE
卷 39, 期 3, 页码 552-558出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jssc.201500967
关键词
Environmental solid samples; Molecularly imprinted fibers; Parabens; Solid-phase microextraction
资金
- Spanish Ministry of Economy and Competitiveness [CTQ2011-24807]
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 of parabens were within 78-109% for soil and 83-109% for sediments with a relative standard deviation <15% (n = 3).
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