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Reference type: Journal
Authors: Huang L, Zhai HY, Liang GH, Su ZH, Yuan KS, Lu GQ, Pan YF
Article Title: Chip-based dual-molecularly imprinted monolithic capillary array columns coated Ag/GO for selective extraction and simultaneous determination of bisphenol A and nonyl phenol in fish samples.
Publication date: 2016
Journal: Journal of Chromatography A
Volume: 1474
Page numbers: 14-22.
DOI: 10.1016/j.chroma.2016.10.074
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0021967316314571

Abstract: An analytical technique for selective, simultaneous determination of bisphenol A (BPA) and nonyl phenol (NP) in fish samples was established by a solid-phase extraction chip integrated with array columns of dual-molecularly imprinted polymer-coated silver-modified graphene oxide (Ag/GO-dual-MISPE-chip). Ag/GO dual-molecularly imprinted polymers (Ag/GO-dual-MIPs) were synthesized by in situ polymerization using Ag/GO as the supporting matrix which extracted templates easily. The affinity and specificity on the Ag/GO-dual-MISPE monolithic column were also investigated. The array extraction chip showed high binding capacity and selectivity to BPA and NP, with the imprinting factors of BPA and NP reaching 2.6 and 2.9, respectively. Ag/GO-dual-MIPs were characterized by scanning electron microscopy and Fourier transform-infrared (FT-IR) spectroscopy. As Low as 2.4 ng L-1 BPA and 4.7 ng L-1 NP were detected by high performance liquid chromatography coupled with fluorescence detection. The enrichment factor was 113-fold for BPA and 92-fold for NP. Therefore, the chip-based array columns are feasibly applicable to facile extraction of BPA and NP and effective clean-up of impurities in fish samples
Template and target information: dual templates, bisphenol A, BPA, nonyl phenol, NP
Author keywords: Dual-molecularly imprinted polymer, Solid-phase extraction, Array column, Silver-modified graphene oxide, Fish

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