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	Evaluation of the solid-phase microextraction fiber coated with single walled carbon nanotubes for the determination of benzene, toluene, ethylbenzene, xylenes in aqueous samples
	Li, Quanlong ; Li QL(李权龙) ; Ma, Xiaoxia ; Yuan, Dongxing ; Yuan DX(袁东星) ; Chen, Jinsheng（Chinese Acad Sci, Inst Urban Environm, Key Lab Urban Environm & Hlth, Xiamen 361021, Peoples R China）
	2010-04
关键词	Solid-phase microextraction Single walled carbon nanotubes BTEX
英文摘要	A solid-phase microextraction (SPME) fiber coated with single walled carbon nanotubes (SWCNTs) was prepared by electrophoretic deposition and treated at 500 degrees C in H-2 stream. In order to evaluate the characteristics of the obtained fiber, it was applied in the headspace solid-phase microextraction (HS-SPME) of benzene, toluene, ethylbenzene and xylenes (BTEX) from water sample and quantification by gas chromatography with flame ionization detection (GC-FID). The results indicated that the thermal treatment with H-2 enhanced the extraction of the SWCNTs fiber for BTEX significantly.Thermal stability and durability of the fiber were also investigated, showing excellent stability up to 350 degrees C and life time over 120 times. In the comparison with the commercial CAR-PDMS fiber, the SWCNTs fiber showed similar and higher extraction efficiencies for BTEX. Under the optimized conditions, the linearity, LODs (S/N = 3) and LOQs (S/N = 10) of the method based on the SWCNTs fiber were 0.5-50.0, 0.005-0.026 and 0.017-0.088 mu g/L, respectively. Repeatability for one fiber (n = 3) was in the range of 1.5-5.6% and fiber-to-fiber reproducibility (n = 3) was in the range of 4.2-8.3%. The proposed method was successfully applied in the analysis of BTEX compounds in seawater, tap water and wastewater from a paint plant. (C) 2010 Elsevier B.V. All rights reserved.; National Natural Science Foundation of China [20607017]; Natural Science Foundation of Fujian Province of China [D0610018]; NCET of Xiamen University
语种	英语
出版者	ELSEVIER SCIENCE BV
内容类型	期刊论文
源URL	[http://dx.doi.org/doi:10.1016/j.chroma.2010.02.009]
专题	海洋环境－已发表论文
推荐引用方式 GB/T 7714	Li, Quanlong,Li QL,Ma, Xiaoxia,et al. Evaluation of the solid-phase microextraction fiber coated with single walled carbon nanotubes for the determination of benzene, toluene, ethylbenzene, xylenes in aqueous samples[J],2010.
APA	Li, Quanlong,李权龙,Ma, Xiaoxia,Yuan, Dongxing,袁东星,&Chen, Jinsheng.(2010).Evaluation of the solid-phase microextraction fiber coated with single walled carbon nanotubes for the determination of benzene, toluene, ethylbenzene, xylenes in aqueous samples..
MLA	Li, Quanlong,et al."Evaluation of the solid-phase microextraction fiber coated with single walled carbon nanotubes for the determination of benzene, toluene, ethylbenzene, xylenes in aqueous samples".(2010).

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