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Reference type: Journal
Authors: Wang XM, Huang PF, Ma XM, Du XZ, Lu XQ
Article Title: Magnetic mesoporous molecularly imprinted polymers based on surface precipitation polymerization for selective enrichment of triclosan and triclocarban.
Publication date: 2018
Journal: Journal of Chromatography A
Volume: 1537
Page numbers: 35-42.
DOI: 10.1016/j.chroma.2018.01.023
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0021967318300414

Abstract: Novel magnetic mesoporous molecularly imprinted polymers (MMIPs) were prepared based on surface precipitation polymerization using Triclosan (TCS) as template and methacrylic acid as functional monomer. The synthesized MMIPs-TCS were applied to the adsorbent of magnetic solid-phase extraction (MSPE) coupled with HPLC for the enrichment and determination of TCS. The MMIPs-TCS were characterized by fourier-transform infrared spectrometry (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), N2 adsorption-desorption transmission, and vibrating sample magnetometry. Under the optimum condition, the MMIPs-TCS-MSPE-HPLC method shows low limits of detection (LODs) (0.20-0.90 μg L-1) and limits of quantification detection (LOQs) (0.66-2.97 μg L-1), wide linear ranges from 10.0 to 1000 μg L-1 for each compound with exception of 2,4,6-TCP from 20.0 to 1000 μg L-1, and acceptable reproducibility (relative standard deviation, RSD <6.6% for intra-day, RSD <8.1% for inter-day). The satisfactory recoveries were in the range of 89.5%-108.4% with good RSDs less than 8.0% at the three spiked levels of 20, 50 and 80 μg L-1. Moreover, the adsorption experiments show the MMIPs-TCS possess rapid binding affinity, excellent magnetic response, specific selectivity and high adsorption capacity toward TCS with a maximum adsorption capacity of 1955.8 μg g-1
Template and target information: triclosan, TCS, triclocarban
Author keywords: Magnetic solid-phase extraction, Triclosan, Pharmaceuticals and personal care products, high-performance liquid chromatography

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