caa a22 4500 445881372 CHVBK 20180317145544.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s00604-011-0621-4 doi (NATIONALLICENCE)springer-10.1007/s00604-011-0621-4 Chemically bonded carbon nanotubes on modified gold substrate as novel unbreakable solid phase microextraction fiber [Elektronische Daten] [Habib Bagheri, Zahra Ayazi, Habiballah Sistani] A new technique is introduced for preparation of an unbreakable fiber using gold wire as a substrate for solid phase microextraction (SPME). A gold wire is used as a solid support, onto which a first film is deposited that consists of a two-dimensional polymer obtained by hydrolysis of a self-assembled monolayer of 3-(trimethoxysilyl)-1-propanthiol. This first film is covered with a layer of 3-(triethoxysilyl)-propylamine. Next, a stationary phase of oxidized multi-walled carbon nanotubes was chemically bound to the surface. The synthetic strategy was verified by Fourier transform infrared spectroscopy and scanning electron microscopy. Thermal stability of new fiber was examined by thermogravimetric analysis. The applicability of the novel coating was verified by its employment as a SPME fiber for isolation of diazinon and fenthion, as model compounds. Parameters influencing the extraction process were optimized to result in limits of detection as low as 0.2ngmL−1 for diazinon, and 0.3ngmL−1 for fenthion using the time-scheduled selected ion monitoring mode. The method was successfully applied to real water, and the recoveries for spiked samples were 104% for diazinon and 97% for fenthion. Figure A gold wire is used as a SPME fiber substrate, onto which a first film is deposited consisting a polymer obtained by hydrolysis of a self-assembled monolayer of 3-(trimethoxysilyl)-1-propanthiol. This first film is covered with a layer of 3-(triethoxysilyl)-propylamine. Next, a stationary phase of COOH-MWCNTs was chemically bound to the surface. Springer-Verlag, 2011 Carbon nanotube nationallicence Self assembled monolayers (SAMs) nationallicence Unbreakable fiber nationallicence Solid phase microextraction nationallicence Gas chromatography-mass spectrometry nationallicence Bagheri Habib Environmental and Bio-Analytical Laboratories, Department of Chemistry, Sharif University of Technology, P.O. Box 11365-9516, Tehran, Iran aut Ayazi Zahra Environmental and Bio-Analytical Laboratories, Department of Chemistry, Sharif University of Technology, P.O. Box 11365-9516, Tehran, Iran aut Sistani Habiballah Environmental and Bio-Analytical Laboratories, Department of Chemistry, Sharif University of Technology, P.O. Box 11365-9516, Tehran, Iran aut Microchimica Acta Springer Vienna 174/3-4(2011-09-01), 295-301 0026-3672 174:3-4<295 2011 174 604 https://doi.org/10.1007/s00604-011-0621-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00604-011-0621-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bagheri Habib Environmental and Bio-Analytical Laboratories, Department of Chemistry, Sharif University of Technology, P.O. Box 11365-9516, Tehran, Iran aut NATIONALLICENCE 700 1- Ayazi Zahra Environmental and Bio-Analytical Laboratories, Department of Chemistry, Sharif University of Technology, P.O. Box 11365-9516, Tehran, Iran aut NATIONALLICENCE 700 1- Sistani Habiballah Environmental and Bio-Analytical Laboratories, Department of Chemistry, Sharif University of Technology, P.O. Box 11365-9516, Tehran, Iran aut NATIONALLICENCE 773 0- Microchimica Acta Springer Vienna 174/3-4(2011-09-01), 295-301 0026-3672 174:3-4<295 2011 174 604 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer