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Polyurethane/polystyrene‐silica electrospun nanofibrous composite for the headspace solid‐phase microextraction of chlorophenols coupled with gas chromatography
Author(s) -
Eskandarpour Niloufar,
Sereshti Hassan,
Najarzadekan Hamid,
Gaikani Hamid
Publication year - 2016
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.201600817
Subject(s) - solid phase microextraction , extraction (chemistry) , thermogravimetric analysis , gas chromatography , polystyrene , chromatography , thermal stability , materials science , scanning electron microscope , fourier transform infrared spectroscopy , adsorption , analytical chemistry (journal) , chemistry , mass spectrometry , gas chromatography–mass spectrometry , chemical engineering , polymer , composite material , organic chemistry , engineering
A novel electrospun composite nanofiber‐based adsorbent (polyurethane/polystyrene‐silica) was fabricated, characterized, and used in the headspace solid‐phase microextraction of the acetylated derivatives of chlorophenols in water samples before gas chromatography with micro electron capture detection. The surface morphology, chemical composition, thermal stability, and structure of the fibers were investigated by scanning electron microscopy, Fourier transform infrared spectroscopy, thermogravimetric analysis, and Brunauer–Emmett–Teller and Barrett–Joyner–Halenda techniques. The effect of the main parameters influencing the efficiency of the method including extraction temperature, salt concentration, and extraction time was investigated and the optimized conditions were obtained. The linear dynamic ranges were 0.1–800 ng/mL. The relative standard deviations ( n = 3) and the limits of detection were 2.64–9.57% and 0.0234–0.830 ng/mL, respectively. The relative recoveries for real samples (river water and sewage of our university campus) were between 90.8 and 111%.