New Journal of Chemistry, Volume (38), No (6), Year (2014-1) , Pages (4486-4493)

Title : ( A non-ionic surfactant-mediated sol–gel coating for solid-phase microextraction of benzene, toluene, ethylbenzene and o-xylene in water samples using a gas chromatography-flame ionization detector )

Authors: Ali Sarafraz Yazdi , Ali Yekkebashi ,

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In this study, sol–gel hybrid organic–inorganic materials were prepared in the presence of polyethyleneoxide (PEO) non-ionic surfactants (Triton X-100), which act as co-porogenic agents. For the first time, non-ionic surfactant mediated sol–gel coatings were evaluated by analyzing benzene, toluene, ethylbenzene and o-xylene (BTEX) in the aqueous samples. Two different fiber coatings were prepared including: un-modified poly(dimethylsiloxane) (PDMS) coating prepared from PDMS in the absence of Triton X-100 as a non-ionic surfactant (PDMS-no TX100), and modified PDMS coating prepared from this polymer in the presence of Triton X-100 as a porogenic agent and conditioned at a higher temperature than decomposition temperature of a non-ionic surfactant (PDMS-TX100). After the analytical procedure was optimized, the dynamic linear range obtained using PDMS-TX100 and PDMS-no TX100 fibers was 4–200000 and 100–200000 pg mL-1 and the limits of detection (S/N = 3) were 1–3 and 30–300 pg mL-1, respectively. The relative standard deviations (RSDs) for one fiber (repeatability) (n = 5) were from 3.1 up to 6.2% and between fibers or batch to batch (reproducibility) (n = 3) in the range of 4.2–7.7% for three fibers. The developed method was successfully applied to the real water samples while the relative recovery percentages obtained for the spiked water samples at 20 pg mL-1 of each analyte were from 94.41 to 104.05%.

Keywords

, sol–gel hybrid organic–inorganic materials , polyethyleneoxide, non-ionic
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@article{paperid:1042875,
author = {Sarafraz Yazdi, Ali and Yekkebashi, Ali},
title = {A non-ionic surfactant-mediated sol–gel coating for solid-phase microextraction of benzene, toluene, ethylbenzene and o-xylene in water samples using a gas chromatography-flame ionization detector},
journal = {New Journal of Chemistry},
year = {2014},
volume = {38},
number = {6},
month = {January},
issn = {1144-0546},
pages = {4486--4493},
numpages = {7},
keywords = {sol–gel hybrid organic–inorganic materials ; polyethyleneoxide; non-ionic surfactants},
}

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%0 Journal Article
%T A non-ionic surfactant-mediated sol–gel coating for solid-phase microextraction of benzene, toluene, ethylbenzene and o-xylene in water samples using a gas chromatography-flame ionization detector
%A Sarafraz Yazdi, Ali
%A Yekkebashi, Ali
%J New Journal of Chemistry
%@ 1144-0546
%D 2014

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