title: Gas chromatographic determination of polycyclic aromatic hydrocarbons in water and smoked rice samples after solid-phase microextraction using multiwalled carbon nanotube loaded hollow fiber.
abstract: A novel solid-phase microextraction fiber was prepared based on multiwalled carbon nanotubes (MWCNTs) loaded on hollow fiber membrane pores. Stainless steel wire was used as unbreakable support. The major advantages of the proposed fiber are its (a) high reproducibility due to the uniform structure of the hollow fiber membranes, (b) high extraction capacity related to the porous structure of the hollow fiber and outstanding adsorptive characteristics of MWCNTs. The proposed fiber was applied for the microextraction of five representative polycyclic aromatic hydrocarbons (PAHs) from aqueous media (river and hubble-bubble water) and smoked rice samples followed by gas chromatographic determination. Analytical merits of the method, including high correlation coefficients [(0.9963-0.9992) and (0.9982-0.9999)] and low detection limits [(9.0-13.0ngL(-1)) and (40.0-150.0ngkg(-1))] for water and rice samples, respectively, made the proposed method suitable for the ultra-trace determination of PAHs.
authors.affiliation: Department of Chemistry, Faculty of Sciences, Azarbijan Shahid Madani University, 53714-161 Tabriz, Iran. Electronic address: matinchem@gmail.com.
authors.forename: Amir Abbas
authors.initials: AA
authors.lastname: Matin
authors.affiliation: Department of Basic Sciences, Sari Agricultural Sciences and Natural Resources University, Sari, Iran. Electronic address: pb.biparva@gmail.com.
authors.forename: Pourya
authors.initials: P
authors.lastname: Biparva
authors.affiliation: Research Department of Chromatography, Iranian Academic Center for Education, Culture and Research (ACECR), Urmia, Iran.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Gheshlaghi
mesh_terms: D002849:Chromatography, Gas / Q000379:methods*; D057230:Limit of Detection; D037742:Nanotubes, Carbon / Q000737:chemistry*; D012275:Oryza / Q000737:chemistry*; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D015203:Reproducibility of Results; D012906:Smoke / Q000032:analysis; D052617:Solid Phase Microextraction / Q000379:methods*; D014867:Water / Q000737:chemistry*
chemical_list: D037742:Nanotubes, Carbon; D011084:Polycyclic Aromatic Hydrocarbons; D012906:Smoke; D014867:Water
keywords: Gas chromatography; Multiwalled carbon nanotubes; Polycyclic aromatic hydrocarbons; Smoked rice; Solid-phase microextraction