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Reference type: Journal
Authors: Li H, Wang LY
Article Title: Highly Selective Detection of Polycyclic Aromatic Hydrocarbons Using Multifunctional Magnetic-Luminescent Molecularly Imprinted Polymers.
Publication date: 2013
Journal: ACS Applied Materials & Interfaces
Volume: 5
Issue: (21)
Page numbers: 10502-10509.
DOI: 10.1021/am4020605

Abstract: A facile method is presented for the selective luminescence detection of trace polycyclic aromatic hydrocarbons (PAHs) based on a combination of the specific recognition of molecularly imprinted polymers (MIPs) and magnetic separation (MS). Multifunctional magnetic-luminescent MIP nanocomposites were fabricated via a one-pot emulsion strategy using polystyrene-co-methacrylic acid copolymer, hydrophobic Fe3O4 nanoparticles and luminescent LaVO4:Eu3+ nanoparticles as building blocks with a phenanthrene template. The resulting nanocomposites can be employed in a simple method for the luminescence detection of phenanthrene. Furthermore, magnetic separation of the nanocomposites from the target mixture prior to luminescence detection of phenanthrene affords significantly enhanced selectivity and sensitivity, with a 3дт limit of detection (LOD) as low as 3.64 ng/mL. Milk samples spiked with phenanthrene (5.0 μg/mL) were assayed via this method and recoveries ranging from 97.11 to 101.9% were obtained, showing that our strategy is potentially applicable for the preconcentration, recovering, and monitoring of trace PAHs in complex mixtures
Template and target information: polycyclic aromatic hydrocarbons, PAHs, phenanthrene

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