Development of a solid-phase microextraction fiber by chemical binding of polymeric ionic liquid on a silica coated stainless steel wire

Journal of Chromatography. a
Long Pang, Jing-Fu Liu

Abstract

A novel approach was developed for the fabrication of solid-phase microextraction (SPME) fiber by coating stainless steel fiber with a polymeric ionic liquid (PIL) through covalent bond. The stainless steel fiber was sequentially coated with a gold film by replacement reaction between Fe and Au when immerged in chloroauric acid, assembled with a monolayer of 3-(mercaptopropyl) triethoxysilane on the gold layer through the Au-S bond, and coated with a silica layer by the hydrolysis and polycondensation reaction of the surface-bonded siloxane moieties and the active silicate solution. Then, 1-vinyl-3-(3-triethoxysilylpropyl)-4,5-dihydroimidazolium chloride ionic liquid was anchored on the silica layer by covalent bond, and the PIL film was further formed by free radical copolymerization between 1-vinyl-3-(3-triethoxysilylpropyl)-4,5-dihydroimidazdium and vinyl-substituted imidazolium with azobisisobutyronitrile (AIBN) as initiator. Parameters influencing the preparation of PIL fiber were optimized, and the developed SPME fiber has a coating thickness of ~20 μm with good thermal stability and long lifetime. The performance of the PIL fiber was evaluated by analysis of polycyclic aromatic hydrocarbons (PAHs) in water samples. The d...Continue Reading

References

May 7, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Young Shik ChiInsung S Choi
Sep 22, 2009·Journal of Chromatography. a·Colin F Poole, Salwa K Poole
Nov 26, 2009·Journal of Chromatography. a·Michael A JeannotJohn M Kokosa

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Citations

Apr 18, 2013·Bioanalysis·Akira Namera, Takeshi Saito
Apr 14, 2012·Journal of Chromatography. a·Habib Bagheri, Ali Roostaie
Sep 25, 2014·Journal of Chromatography. a·Jingbin ZengZifeng Yan
Jan 30, 2014·Journal of Chromatography. a·Federica BianchiMaria Careri
Jun 2, 2016·Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences·Haibo LiuYinji Chen
Jul 8, 2014·Chemical Society Reviews·Bingwei Xin, Jingcheng Hao
Nov 10, 2013·Analytical and Bioanalytical Chemistry·Habib BagheriAli Aghakhani
Dec 24, 2017·Journal of Separation Science·Juanjuan FengMin Sun
Nov 12, 2013·Analytical Chemistry·Tien D HoJared L Anderson

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