NDLI: Electrospun polyamide-polyethylene glycol nanofibers for headspace solid-phase microextration.

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Electrospun polyamide-polyethylene glycol nanofibers for headspace solid-phase microextration.

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Electrospun polyamide-polyethylene glycol nanofibers for headspace solid-phase microextration.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Bagheri, Habib Najarzadekan, Hamid Roostaie, Ali
Description	Country affiliation: Iran Author Affiliation: Bagheri H ( Environmental and Bio-Analytical Laboratories, Department of Chemistry, Sharif University of Technology, Tehran, Iran.)
Abstract	A solution of polyamide (PA) containing polyethylene glycol (PEG) as a side low-molecular-weight polymer was electrospun. After synthesizing the PA-PEG nanofibers, the constituent was subsequently removed (modified PA) and confirmed by Fourier transform infrared spectroscopy. The scanning electron microscopy images showed an average diameter of 640 and 148 nm for PA and PA-PEG coatings, respectively, while the latter coating structure was more homogeneous and porous. The extraction efficiencies of PA, PA-PEG, and the modified PA fiber coatings were assayed by headspace solid-phase microextraction of a number of chlorophenols from real water samples followed by their determination by gas chromatography with mass spectrometry. To prepare the most appropriate coatings, the amounts and the flow rate of the electrospinning solution were investigated. Various extraction parameters, such as the salt content, desorption condition, extraction temperature, and time were optimized. The limits of detection of the method were in the range of 0.8-25 ng/L, while the RSDs at two concentration levels of 200 and 80 ng/L were between 2.1 and 12.2%. The analysis of real water samples led to relative recoveries between 85 and 98% with a linearity of 8-1500 ng/L.
File Format	HTM / HTML
ISSN	16159306
Issue Number	14
Journal	Journal of Separation Science
Volume Number	37
e-ISSN	16159314
Language	English
Publisher	Wiley-VCH
Publisher Date	2014-07-01
Publisher Place	Germany
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry Filtration and Separation

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