Graphene coating bonded onto stainless steel wire as a solid-phase microextraction fiber

Sun, Min; Feng, Juanjuan; Bu, Yanan; Wang, Xiaojiao; Duan, Huimin; Luo, Chuannan

doi:10.1016/j.talanta.2014.11.005

Cited by 40 publications

(27 citation statements)

References 38 publications

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“…The aggregation of graphene sheets during the preparation of graphene-based SPME fibers hindered the adoption of the aforementioned methods. Thus, in the following studies, graphene oxide (GO), which is less likely to aggregate in its suspension than graphene, was firstly chemically bonded to substrates, then reduced to graphene on the substrates [26,82,83]. Banitaba et al [84] prepared a SPME fiber by electrochemically reducing GO on the surface of copper wire.…”

Section: Graphenementioning

confidence: 99%

“…Still, in some works, the graphene-based fibers were also reported with high EEs to compounds without aromatic rings, such as some organochlorine pesticides [78] and n-alkanes [83], which might be owing to the hydrophobic interactions [83]. It is also notable that the composites of graphene with other materials could exhibit high EEs to some specific analytes due to the combination effects of each component of the composites.…”

Section: Graphenementioning

confidence: 99%

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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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Section: Graphenementioning

confidence: 99%

Section: Graphenementioning

confidence: 99%

Development of Novel Solid-Phase Microextraction Fibers

Xu¹,

Ouyang²

2016

Solid Phase Microextraction

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“…Polymeric composites impregnated with carbon based nanostructures including carbon nanotubes (Silva, Risticevic, and Pawliszyn 2013) and graphene (Mehdinia, Khani, and Mozaffari 2014; Sun et al 2015) were reported to enhance fiber stability. In addition, the addition of an inorganic solid nanocomposite, such as clay, with the monomer was reported to enhance the stability (Lewitus et al 2006;Yalçınkaya, Balcan, and Güler 2013;Abolghasemi, Yousefi, and Rafiee 2014).…”

Section: Please Scroll Down For Articlementioning

confidence: 99%

Polythiophene–Clay Composite Solid-Phase Microextraction Fiber: Preparation, Characterization, and Application to the Determination of Methanol in Biodiesel

et al. 2015

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A novel polymer-clay composite solid phase microextraction fiber is reported for the adsorption of methanol in biodiesel with subsequent determination by gas chromatography coupled with a flame ionization detector. The fiber was fabricated using a stainless steel wire that was subjected to electropolymerization in 0.1 molar NaClO4 containing thiophene and montmorillonite clay dispersed in acetonitrile. Electrochemical deposition was maintained by cycling the potential from 0.2 to 2.2 volts at a scan rate of 50 millivolts per second. Examination of the surface by scanning electron microscopy revealed that the fiber had a porous surface suitable for the adsorption of volatile analytes. The properties of the fiber were investigated by Downloaded by [New York University] at 10:12 29 May 20152 thermogravimetric analysis and infrared spectroscopy that showed that the clay was inserted in the structure. The fiber was exposed to methanol in biodiesel. The adsorption time, adsorption temperature, and desorption temperature were optimized. Under the optimized conditions, the linear dynamic range for methanol extended from 0.029 to 0.24 percent (m/m) with a limit of detection of 0.009 percent (m/m). The method was employed for the analysis of biodiesel and the results were validated with a standard EN 14110 method.

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“…Moreover, strong adhesion of uniform nanomaterial coatings onto metallic supports greatly improves the flexibility of the fibers and significantly prolongs the lifetime of the fibers [12]. For these reasons, great efforts have directed to the development of metalbased fibers such as aluminum [13], zinc [14], gold [15], silver [16], platinum [17], titanium [18,19], nitinol alloy [20,21], copper [22] and stainless steel wire [9,[23][24][25]. These metal wire supported fibers are physically strong and can be handled with great convenience.…”

Section: Introductionmentioning

confidence: 99%