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Microchimica Acta

, Volume 181, Issue 5–6, pp 639–645 | Cite as

An inorganic–organic hybrid material based on ZnO nanoparticles anchored to a composite made from polythiophene and hexagonally ordered silica for use in solid-phase fiber microextraction of PAHs

  • Mir Mahdi AbolghasemiEmail author
  • Vahid Yousefi
  • Behzad Hazizadeh
Original Paper

Abstract

We report on an inorganic–organic hybrid nanocomposite that represents a novel kind of fiber coating for solid-phase microextraction (SPME) of polycyclic aromatic hydrocarbons (PAHs). The material is composed of ZnO nanoparticles, polythiophene and hexagonally ordered silica, and displays good extraction capability due to its nanostructure. The nanocomposite was synthesized by an in-situ polymerization technique, and the ZnO nanoparticles were anchored to the pores in the walls. The ZnO/polythiophene/hexagonally ordered silica (ZnO/PT/SBA-15) nanocomposite was then deposited on a stainless steel wire to obtain the fiber for SPME of PAHs. Optimum conditions include an extraction temperature of 85 °C (for 30 min only), a desorption temperature of 260 °C (for 2 min), and a salt concentration (NaCl) of 20 % (w/v). The detection limits are between 8.2 and 20 pg mL−1, and the linear responses extend from 0.1 to 10 ng mL−1. The repeatability for one fiber (for n = 5), expressed as relative standard deviation, is between 4.3 and 9.1 %. The method offers the advantage of being simple to use, rapid, and low-cost (in terms of equipment). The thermal stability of the fiber and high relative recovery (compared to conventional methods) represent additional attractive features.

Figure

We report on an inorganic–organic hybrid nanocomposite that represents a novel kind of fiber coating with thermal stability and high relative recovery for solid-phase microextraction (SPME) of polycyclic aromatic hydrocarbons (PAHs). The method is simple to use, rapid and low-cost.

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Keywords

Polycyclic aromatic hydrocarbons Polythiophene Nanocomposite Solid-phase microextraction Gas chromatography–mass spectrometry 

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Copyright information

© Springer-Verlag Wien 2014

Authors and Affiliations

  • Mir Mahdi Abolghasemi
    • 1
    Email author
  • Vahid Yousefi
    • 1
  • Behzad Hazizadeh
    • 2
  1. 1.Department of Chemistry, Faculty of ScienceUniversity of MaraghehMaraghehIran
  2. 2.Department of Chemistry, Ahar BranchIslamic Azad UniversityTehranIran

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