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	Polypyrrole/graphene composite-coated fiber for the solid-phase microextraction of phenols
	Zou, Jing ; Song, Xinhong ; Ji, Jiaojiao ; Xu, Weici ; Chen, Jinmei ; Jiang, Yaqi ; Jiang YQ(蒋亚琪) ; Wang, Yiru ; Chen, Xi
	2011-08-08
关键词	GC Graphene Phenols Polypyrrole Solid-phase microextraction
英文摘要	A polypyrrole (Ppy)/graphene (G) composite was developed and applied as a novel coating for use in solid-phase microextraction (SPME) coupled with gas chromatography (GC). The Ppy/G-coated fiber was prepared by electrochemically polymerizing pyrrole and G on a stainless-steel wire. The extraction efficiency of Ppy/G-coated fiber for five phenols was the highest compared with the fibers coated with either Ppy or Ppy/graphene oxide (GO) using the same method preparation. Significantly, compared with various commercial fibers, the extraction efficiency of Ppy/G-coated fiber is better than or comparable to 85 mu m CAR/PDMS fiber (best extraction efficiency of phenol, o-cresol, and m-cresol in commercial fibers) and 85 mu m polyacrylate (PA) fiber (best extraction efficiency of 2,4-dichlorophenol and p-bromophenol in commercial fibers). The effects of extraction and desorption parameters such as extraction time, stirring rate, and desorption temperature and time on the extraction/desorption efficiency were investigated and optimized. The calibration curves were linear from 10 to 1000 mu g/L for o-cresol, m-cresol, p-bromophenol, and 2,4-dichlorophenol, and from 50 to 1000 mu g/L for phenol. The detection limits were within the range 0.34-3.4 mu g/L. The single fiber and fiber-to-fiber reproducibilities were <8.3 (n=7) and 13.3% (n=4), respectively. The recovery of the phenols spiked in natural water samples at 200 mu g/L ranged from 74.1 to 103.9% and the relative standard deviations were <3.7%.; Science and Technology Projects of Fujian Province[2010Y0050]; Nature Scientific Foundation of Fujian[2009J01042]; Science and Technology of Xiamen for University Innovation[3502Z20093004]; National Nature Scientific Foundation of China-Korea[20911140274]
语种	英语
出版者	WILEY-BLACKWELL
内容类型	期刊论文
源URL	[http://dx.doi.org/doi:10.1002/jssc.201100303]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Zou, Jing,Song, Xinhong,Ji, Jiaojiao,et al. Polypyrrole/graphene composite-coated fiber for the solid-phase microextraction of phenols[J],2011.
APA	Zou, Jing.,Song, Xinhong.,Ji, Jiaojiao.,Xu, Weici.,Chen, Jinmei.,...&Chen, Xi.(2011).Polypyrrole/graphene composite-coated fiber for the solid-phase microextraction of phenols..
MLA	Zou, Jing,et al."Polypyrrole/graphene composite-coated fiber for the solid-phase microextraction of phenols".(2011).

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