Ionic Liquid Bonded Coating Applied to Determination of Pentachlorophenol in Water Sample by Solid-phase Micro-extraction Coupled with Gas Chromatography

Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (10): 1945.

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Ionic Liquid Bonded Coating Applied to Determination of Pentachlorophenol in Water Sample by Solid-phase Micro-extraction Coupled with Gas Chromatography

ZHOU Rui-Juan, DUAN Lian, SUN Xiao-Jie, WU Cai-Ying, XING Jun*

Key Laboratory of Analytical Chemistry for Biology and Medicine, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China

Received:2010-04-09 Online:2010-10-10 Published:2010-10-10
Contact: XING Jun. E-mail: gc-ms@263.net
Supported by:
国家自然科学基金(批准号: 20775056)资助.

Abstract

Abstract: High thermal stability ionic liquid(IL), γ-triethoxysilyl-propyl-methyl-imidazolebis(trifluoromethane sulfonamide) salt, was synthesized and used to prepare an IL bonded coating for solid-phase micro-extraction(SPME) by sol-gel method. This fiber has a high usage temperature up to 340 ℃. Under optimized conditions, using headspace solid phase microextraction-gas chromatography-flame ionization detection method(HS-SPME-GC-FID), the detection limit for PCP is 0.5 ng/L(S/N=3), the linearity of the developed method is in the range of 10-2—102 μg/L with coefficients of correlation 0.9994, and the precision is 3.5%(RSD, n=5). For the lake water spiked with 1 μg/L PCP, the recovery of PCP is about 84.5%.

Key words: Solid-phase microextraction, Ionic liquid, Sol-gel method, Pentachlorophenol

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ZHOU Rui-Juan, DUAN Lian, SUN Xiao-Jie, WU Cai-Ying, XING Jun*. Ionic Liquid Bonded Coating Applied to Determination of Pentachlorophenol in Water Sample by Solid-phase Micro-extraction Coupled with Gas Chromatography[J]. Chem. J. Chinese Universities, 2010, 31(10): 1945.

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Ionic Liquid Bonded Coating Applied to Determination of Pentachlorophenol in Water Sample by Solid-phase Micro-extraction Coupled with Gas Chromatography

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