title: Environmental monitoring of complex hydrocarbon mixtures in water and soil samples after solid phase microextraction using PVC/MWCNTs nanocomposite fiber.
abstract: A novel nanocomposite based on incorporation of multiwalled carbon nanotubes (MWCNTs) in polyvinyl chloride (PVC) was prepared. Proposed nanocomposite was coated on stainless steel wire by deep coating. Composition of nanocomposite was optimized based on results of morphological studies using scanning electron microscopy. The best composition (83% MWCNTs:17% PVC) was applied as a solid phase microextraction fiber. Complex mixture of aromatic (BTEX) and aliphatic hydrocarbons (C5-C34) were selected as model analytes, and performance of proposed fiber in extraction of the studied compounds from water and soil samples was evaluated. Analytical merits of the method for water samples (LODs=0.10-1.10 ng L(-1), r(2)=0.9940-0.9994) and for soil samples (LODs=0.10-0.77 ng kg(-1), r(2)=0.9946-0.9994) showed excellent characteristics of it in ultra trace determination of petroleum type environmental pollutants. Finally, the method was used for determination of target analytes in river water, industrial effluent and soil samples.
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.forename: Pourya
authors.initials: P
authors.lastname: Biparva
authors.forename: Mohammad
authors.initials: M
authors.lastname: Gheshlaghi
authors.forename: Khalil
authors.initials: K
authors.lastname: Farhadi
authors.forename: Ali
authors.initials: A
authors.lastname: Gheshlaghi
mesh_terms: D004784:Environmental Monitoring / Q000379:methods*; D037742:Nanotubes, Carbon / Q000737:chemistry*; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D011143:Polyvinyl Chloride / Q000737:chemistry; D012987:Soil / Q000737:chemistry; D012989:Soil Pollutants / Q000032:analysis*; D052617:Solid Phase Microextraction; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D037742:Nanotubes, Carbon; D011084:Polycyclic Aromatic Hydrocarbons; D012987:Soil; D012989:Soil Pollutants; D014874:Water Pollutants, Chemical; D011143:Polyvinyl Chloride
keywords: Alipahtic hydrocarbons; Aromatic hydrocarbons; Gas chromatography; Nanocomposite; Solid phase microextraction