A novel reusable ionic liquid chemically bonded fused-silica fiber for headspace solid-phase microextraction/gas chromatography-flame ionization detection of methyl tert-butyl ether in a gasoline sample

Amini, Ramin; Rouhollahi, Ahmad; Adibi, Mina; Mehdinia, Ali

doi:10.1016/j.chroma.2010.10.114

Cited by 64 publications

(25 citation statements)

References 74 publications

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“…Recently, some researchers have used silica coated with ILs as a sorbent for the SPME of volatile organic compounds, such as benzene, toluene, ethylbenzene and xylenes, followed by GC analysis with flame ionization detection (FID) in some samples except for plant samples [153][154][155][156][157][158]. The IL prevents the direct coupling of IL-based LPME with GC because the injection of ILs into GC can contaminate the GC column.…”

Section: Spme Lpme and CCCmentioning

confidence: 99%

Application of ionic liquid for extraction and separation of bioactive compounds from plants

Tang

Tian

et al. 2012

Journal of Chromatography B

212

120

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Section: Spme Lpme and CCCmentioning

confidence: 99%

Application of ionic liquid for extraction and separation of bioactive compounds from plants

Tang

Tian

et al. 2012

Journal of Chromatography B

212

120

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“…One group of novel sorbents is chemically bonded sorbents. Chemically bonded carbon nanotubes on modified gold substrate [9], covalent bonded polyaminithiophenol on the gold substrate [10] and chemically bonded ionic liquid on the fused-silica substrate [11] are the examples of these novel sorbents. Conducting polymers [12][13][14][15], particularly polypyrrole (PPY) and its derivatives, are another group of new sorbents used up to now [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

A strategy to enhance the thermal stability of a nanostructured polypyrrole-based coating for solid phase microextraction

et al. 2012

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We report on a nanostructured self-doped polypyrrole (SPPy) film that was prepared by an electrochemical technique in an electrolyte containing fluorosulfonic acid as the sulfonation reagent. The film was applied as a new fiber material for solid-phase microextraction (SPME) of the pesticides lindane, heptachlor, aldrin, endosulfans I and II prior to their quantitation by GC with electron capture detection. The SPPy nanoparticles have a diameter of <100 nm. The introduction of covalently bound sulfo groups into the backbone of the polymer resulted in improved temperature resistance (~350°C) and satisfactory extraction efficiency. The thermal stability of the SPPy fiber is superior to common polypyrrole fibers. Extraction was optimized by means of the Taguchi orthogonal array experimental design with an OA 16 (4 5 ) matrix including extraction temperature, extraction time, salt concentration, stirring rate, and headspace volume. The method displays good repeatability (RSD<6%) and linearity (in the range from 0.78 to 100 ng mL −1 ; with an R 2 of >0.998. The detection limits are <0.23 ng mL −1 . The method was successfully applied to the analysis of the pesticides in skimmed milk and fruit juice samples, and recoveries are from 84±1 to 105±1%.

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“…The first relatively long-term reusable IL-based SPME fiber was prepared by fixing IL-impregnated silicone elastomer on a bare fused-silica fiber [41], followed by Carda-Broch et al [42] and Wanigasekara et al [43] who glued IL-functionalized silica particles on fused-silica fibers, which loaded more IL on the fiber as well. IL was also chemically bonded on a fuse silica fiber by using 3-chloropropyltrimethoxysilane as a cross-linker [44]. In other works, reusable IL-based SPME fibers were also prepared by chemically bonding allyl-ILs to sol-gel substrates [45][46][47][48][49], or using 3-triethoxysilylpropyl-ILs as solgel precursors [49,50].…”

Section: Ils and Pilsmentioning

confidence: 99%

Development of Novel Solid-Phase Microextraction Fibers

Xu¹,

Ouyang²

2016

Solid Phase Microextraction

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The basic principles for the preparation of SPME fibers with satisfying selectivity, sensitivity, loading capacities and stabilities are summarized here in terms of the physicochemical properties of the coating materials and the supporting substrates of SPME fibers. While the main part of this chapter focuses on the advances in developing the most widely used coating materials, including ionic liquids, polymeric ionic liquids, carbonaceous materials, molecularly imprinted polymers, metal-organic frameworks, metals and metal oxides, conductive polymers, modified silica, as well as their composites, into SPME fibers. Meanwhile, the applications of novel SPME fibers in analyzing diverse analytes in different sample matrices are briefly reviewed, including the emerging applications of SPME in the extraction of bioactive compounds in living animals and plants.Keywords SPME fiber coating Á Ionic liquid Á Polymeric ionic liquid Á Graphene Á Carbon nanotube Á Molecularly imprinted polymer Á Metal-organic framework Á Metal and metal oxide Á Conductive polymer Á Modified silica IntroductionThe outstanding features of solid-phase microextraction (SPME), including rapid and simple operating procedures, slight disturbance to investigated systems, reduced consumption of solvents, and feasibility of automation, continuously inspire new explorations of SPME in various frontiers, such as metabolome detection [1], central nervous systems studies [2], pharmacokinetic studies [3], environmental analysis [4], and food analysis [5]. On the other hand, the diversity of the physicochemical properties of the target analytes and the complicity of the sample matrices require the development of new SPME devices to nourish the new

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A novel reusable ionic liquid chemically bonded fused-silica fiber for headspace solid-phase microextraction/gas chromatography-flame ionization detection of methyl tert-butyl ether in a gasoline sample

Cited by 64 publications

References 74 publications

Application of ionic liquid for extraction and separation of bioactive compounds from plants

Application of ionic liquid for extraction and separation of bioactive compounds from plants

A strategy to enhance the thermal stability of a nanostructured polypyrrole-based coating for solid phase microextraction

Development of Novel Solid-Phase Microextraction Fibers

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