« Previous AbstractPropylene glycol vapor contamination in controlled environment growth chambers: toxicity to corn and soybean plants    Next AbstractProcess and mechanism of toluene oxidation using Cu(1-y)Mn(2)Ce(y)O(x)/sepiolite prepared by the co-precipitation method »

J Chromatogr A

Title:		A water resistant solid-phase microextraction fiber with high selectivity prepared by a metal organic framework with perfluorinated pores
Author(s):		Niu J; Li Z; Yang H; Ye C; Chen C; Li D; Xu J; Fan L;
Address:		"Zhengzhou Tobacco Research Institute of China National Tobacco Corporation, Zhengzhou, Henan 450001, China. Department of Physics-Chemistry, Henan Polytechnic University, Jiaozuo, Henan 454000, China. Electronic address: lizhongyue@hpu.edu.cn. Department of Physics-Chemistry, Henan Polytechnic University, Jiaozuo, Henan 454000, China. Zhengzhou Tobacco Research Institute of China National Tobacco Corporation, Zhengzhou, Henan 450001, China. Electronic address: fanl@ztri.com.cn"
Journal Title:		J Chromatogr A
Year:		2016
Volume:		20160303
Issue:
Page Number:		16 - 23
DOI:		10.1016/j.chroma.2016.02.076
ISSN/ISBN:		1873-3778 (Electronic) 0021-9673 (Linking)
Abstract:		"A novel solid-phase microextraction (SPME) fiber was fabricated by the construction of fluorous metal organic frameworks (FMOF) and a polyimide (PI) composite strategy. As an auxiliary material, PI was expected to help FMOF particles form well-knit film on the surface of stainless steel wire and reinforce the coating, and FMOF was expected to afford a special structure to absorb, extract and enrich. Furthermore, it was explored for the headspace SPME (HS-SPME) of six volatile aromatic compounds (VACs) from water samples followed by gas chromatographic (GC) separation with flame ionization detection. Under the optimized conditions, the fiber afforded wide linear ranges (1-1000 mugL(-1)), low detection limits (0.15-0.9 mugL(-1)) and acceptable repeatability (<4.6%) and reproducibility (<7.3%). The FMOF@PI coated fiber not only offered large enhancement factors for benzene (1227) but also exhibited high extraction selectivity for benzene to other benzene homologues, hydrocarbons and phenols; for example, the extraction ratio of benzene to toluene, n-hexane and phenol could be as high as 10.2, 64.1 and 32.3, respectively. Moreover, the FMOF@PI-coated fiber afforded good thermal, water and organic solvent stabilities, and a long lifetime (over 200 times). The developed method was successfully applied to the determination of VACs in wastewater samples"
Keywords:		"Benzene/isolation & purification Flame Ionization Hexanes/isolation & purification Limit of Detection Organometallic Compounds/*chemistry Phenols/isolation & purification Reproducibility of Results Resins, Synthetic/*chemistry Solid Phase Microextraction/;"
Notes:		"MedlineNiu, Jiajia Li, Zhongyue Yang, Huijuan Ye, Changwen Chen, Chen Li, Dong Xu, Jun Fan, Li eng Research Support, Non-U.S. Gov't Netherlands 2016/03/08 J Chromatogr A. 2016 Apr 8; 1441:16-23. doi: 10.1016/j.chroma.2016.02.076. Epub 2016 Mar 3"