Citation: CHEN Na, ZHANG Yijun, ZHAO Wanli, CHEN Jun, ZHANG Yuping. Preparation of monolithic fibers with deep eutectic solvent for solid phase microextraction of polycyclic aromatic hydrocarbons in lake water[J]. Chinese Journal of Chromatography, ;2018, 36(1): 5-11. doi: 10.3724/SP.J.1123.2017.10003 shu

Preparation of monolithic fibers with deep eutectic solvent for solid phase microextraction of polycyclic aromatic hydrocarbons in lake water

School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China

Received Date: 8 October 2017

Fund Project: Scientific and Technological Project in Henan Province(No. 142102210047) Project of Scientific and Technological Breakthrough in Henan (No. 142102210047). Iconic Innovation Project Plan of Henan Institute of Science and Technology (No. 2015BZ02)

A monolithic fiber of poly(butyl methacrylate-ethylene glycol dimethacrylate)[poly(BMA-EDMA)] was prepared using deep eutectic solvent (DES) of choline chloride-ethanediol as a porogen. The prepared fibers were applied to direct extraction of three polycyclic aromatic hydrocarbons (PAHs) in lake water samples by solid phase microextraction (SPME). The extracts were determined by ultra performance liquid chromatography (UPLC). The fiber without DES was prepared at the same time. Both fibers (with and without DES) were compared with a commercial polydimethylsiloxane (PDMS) fiber. The highest extraction efficiency was clearly obtained with poly(BMA-EDMA) fiber. The extraction time, extraction solvent, desorption time, desorption solvent, and ionic strength were optimized. Under the optimum conditions, the linear ranges for the three PAHs (naphthalene, biphenyl, and phenanthrene) were 0.1-6.0 mg/L (r ≥ 0.9903). The limits of detection (LODs) of the three PAHs were in the range of 2.1-4.9 μg/L. The recoveries of the three PAHs spiked in lake water samples were 86.4%-111.3% with relative standard deviations (RSDs, n=6) of 11.2%-15.1%. This method is simple, stable, and inexpensive, and can be used for the determination of the PAHs in lake water samples.
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