Headspace solid phase microextraction procedure for the detection of polychlorinated biphenyls in seawater sample

文献类型： 外文期刊

第一作者： Ping, Xian-yin

作者： Ping, Xian-yin;Wang, Yun-long

作者机构：

关键词： Polychlorinated biphenyls;Solid phase microextraction;Gas chromatography;seawater

期刊名称：ENERGY ENGINEERING AND ENVIRONMENTAL ENGINEERING, PTS 1AND 2

ISSN： 1660-9336

年卷期： 2013 年 316-317 卷

页码：

收录情况： SCI

摘要： Headspace solid phase microextraction combined with gas chromatography (HS-SPME-GC) method has been studied for determination of 7 polychlorinated biphenyls (PCBs) in seawater samples. To perform the HS-SPME polydimethylsiloxane (PDMS) (7, 30 and 100 mu m film thickness) fibers were compared on the basis of their absorption capacities for the selected compounds, and PDMS 100 mu m film thickness was selected. The influence of various parameters on PCBs extraction efficiency by HS-SPME was studied using GC-electron capture detector (ECD) compared with solid phase. The performance of proposed HS-SPME GC methodology with respect to linearity, reproducibility and limit of detection (LOD) was evaluated by water spiked with target compounds. The linear range of most compounds was found to be between 0.1 and 100 mu gL(-1) and the limits of detection were between 15.2 and 63.8 ngL(-1). The reproducibility of the method (n = 6), expressed as relative standard deviation (RSD), was between 4 and 10%. Finally, developed procedure was applied to determine selected PCBs in seawater samples.

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