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Electrospun superhydrophobic polystyrene hollow fiber as a probe for liquid–liquid microextraction with gas chromatography-mass spectrometry

Bagheri, H ; Sharif University of Technology | 2016

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  1. Type of Document: Article
  2. DOI: 10.1002/jssc.201600529
  3. Publisher: Wiley-VCH Verlag , 2016
  4. Abstract:
  5. A superhydrophobic polystyrene hollow fiber was electrospun around a copper spring collector. This approach led to the construction of a hollow fiber membrane, and the copper spring acted as a scaffold. The characteristic properties of the hollow fiber were studied by scanning electron microscopy. The membrane was used as a probe to transfer the extracting solvent from aquatic media to a gas chromatograph. After performing the liquid–liquid microextraction procedure on 10 mL of water sample by octanol, the whole solution was passed through the prepared polystyrene hollow fiber. Propanol, containing 2 mg/L lindane as the internal standard, was used for desorption and an aliquot of 2 μL of the desorbing solvent was subsequently injected into gas chromatography with mass spectrometry. Effects of different parameters influencing the extraction efficiency were optimized. The limits of detection and quantification were 2 and 6 ng/L, respectively. The relative standard deviations at a concentration level of 100 ng/L were between 2 and 6% (n = 3) while the method linearity ranged from 6 to 200 ng/L. Some real water samples were analyzed by the developed method and relative recoveries were in the range of 76–107%
  6. Keywords:
  7. Gas chromatography with mass spectrometry ; Polystyrene hollow fiber ; Chromatography ; Column chromatography ; Copper ; Desorption ; Electrospinning ; Extraction ; Fibers ; Hydrophobicity ; Liquid chromatography ; Liquids ; Mass spectrometry ; Polystyrenes ; Probes ; Scanning electron microscopy ; Spectrometry ; Characteristic properties ; Extraction efficiencies ; Gas chromatography-mass spectrometry ; Hollow fiber ; Micro-extraction procedures ; Relative standard deviations ; Superhydrophobic materials ; Triazines ; Gas chromatography
  8. Source: Journal of Separation Science ; Volume 39, Issue 19 , 2016 , Pages 3782-3788 ; 16159306 (ISSN)
  9. URL: http://onlinelibrary.wiley.com/doi/10.1002/jssc.201600529/full