Journal
JOURNAL OF CHROMATOGRAPHY A
Volume 1450, Issue -, Pages 9-16Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chroma.2016.04.065
Keywords
Solid-phase microextraction; Microporous organic polymers; Knitting aromatic polymers; Polycyclic aromatic hydrocarbons; Benzene compounds
Funding
- NNSFC [21225731, 21377172, 21477166]
- NSF of Guangdong Province [S2013030013474]
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A series of knitting aromatic polymers (KAPs) were successfully synthesized using a simple one-step Friedel-Crafts alkylation of aromatic monomers and were characterized by transmission electron microscopy (TEM), Fourier transform infrared (FTIR) spectroscopy, and X-ray photoelectron spectroscopy (XPS). Then, as-synthesized KAPs with large surface areas, unique pore structures and high thermal stability were prepared as solid-phase microextraction (SPME) coatings that exhibited good extraction abilities for a series of benzene compounds (i.e., benzene, toluene, ethylbenzene and m-xylene, which are referred to as BTEX) and polycyclic aromatic hydrocarbons (PAHs). Under the optimized conditions, the methodologies established for the determination of BTEX and PAHs using the KAPs-triPB and KAPs-B coatings, respectively, possessed wide linear ranges, low limits of detection (LODs, 0.10-1.13 ng L-1 for BTEX and 0.05-0.49 ng L-1 for PAHs) and good reproducibility. Finally, the proposed methods were successfully applied to the determination of BTEX and PAHs in environmental water samples, and satisfactory recoveries (93.6-124.2% for BTEX and 77.2-113.3% for PAHs) were achieved. This study provides a benchmark for exploiting novel microporous organic polymers (MOPs) for SPME applications. (C) 2016 Elsevier B.V. All rights reserved.
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