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Graphene's unsurpassed specific surface area (up to 2630m 2 /g) makes it be an ideal absorbent. To promote its use as a sorption coating in solid phase microextraction, an ultrafast method was established, able to coat a stable layer of graphene on a metal fiber in only 23s, with adjustable coating thickness between 10 and 40µm by using sleeve barrels. The core idea includes: (1) use of semi-polymerized...
For the first time, the separation of 19 polycyclic aromatic hydrocarbons (PAHs) listed as priority pollutants in environmental and food samples by the United States Environmental Protection Agency (US-EPA) and the European Food Safety Authority was developed in cyclodextrin (CD)-modified capillary zone electrophoresis with laser-induced fluorescence detection (excitation wavelength: 325nm). The use...
A novel nano-adsorbent, Fe 3 O 4 @ionic liquid@methyl orange nanoparticles (Fe 3 O 4 @IL@MO NPs), was prepared for magnetic solid-phase extraction (MSPE) of polycyclic aromatic hydrocarbons (PAHs) in environmental water samples. The Fe 3 O 4 @IL@MO NPs were synthesized by self-assembly of the ionic liquid 1-octadecyl-3-methylimidazolium bromide (C18mimBr)...
The paper describes the characterization of polycyclic aromatic hydrocarbons (PAHs) in atmospheric aerosol samples using Gas Chromatography–Mass Spectrometry analysis. A data handling of GC/MS signals based on Experimental Autocovariance Function (EACVF) is described in order to directly characterize PAHs with a simple and reliable method suitable for processing large batches of samples.The method...
Atmospheric pollution of anthropic origin is recognized as a major risk factor for health, in particular for respiratory and cardio-vascular systems. Among these pollutants, polycyclic aromatic hydrocarbons (PAHs) are placed on the list of US Environmental Protection Agency (EPA) as ‘priority’ pollutants and four of them are assigned as potential carcinogens by The International Agency for Research...
A novel nano-structured conducting copolymer of pyrrole and o-toluidine was electrosynthesized on steel frit as a new sorbent. The applicability of the frit was assessed for the solid-phase extraction (SPE) of Polycyclic aromatic hydrocarbons (PAHs) by coupling with HPLC–UV. The combination of pyrrole and o-toluidine in a copolymer form presents desirable opportunities to produce materials for new...
In this study, polydimethylsiloxane/metal-organic frameworks (PDMS/MOFs), including PDMS/MIL-101 and PDMS/MOF-199, were immobilized onto a stainless steel wire through sol–gel technique as solid-phase microextraction (SPME) fiber coating. The prepared fibers were used for the extraction of some polycyclic aromatic hydrocarbons (PAHs) from water samples prior to gas chromatography–mass spectrometry...
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