Department of Chemistry, Faculty of Sciences, Azarbijan Shahid Madani University, 53714-161 Tabriz, Iran.
Chemosphere. 2013 Nov;93(9):1920-6. doi: 10.1016/j.chemosphere.2013.06.072. Epub 2013 Jul 29.
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.
一种新型的纳米复合材料，是将多壁碳纳米管（MWCNTs）掺入聚氯乙烯（PVC）中制备而成。拟议的纳米复合材料通过深层涂层涂覆在不锈钢丝上。根据扫描电子显微镜形貌研究的结果，对纳米复合材料的组成进行了优化。最佳组成（83%MWCNTs：17%PVC）被用作固相微萃取纤维。选择芳香（BTEX）和脂肪族烃（C5-C34）的复杂混合物作为模型分析物，并评估了所提出的纤维从水和土壤样品中萃取研究化合物的性能。该方法对水样（LOD=0.10-1.10ng L(-1)，r(2)=0.9940-0.9994）和土壤样品（LOD=0.10-0.77ng kg(-1)，r(2)=0.9946-0.9994）的分析优点表明，该方法在超痕量测定石油型环境污染物方面具有优异的特性。最后，该方法用于测定河水、工业废水和土壤样品中的目标分析物。
Zotero 插件