采用大气压气相色谱-串联质谱法测定 PM 结合多环芳烃及其羟基衍生物。
Determination of PM-bound polyaromatic hydrocarbons and their hydroxylated derivatives by atmospheric pressure gas chromatography-tandem mass spectrometry.
机构信息
State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China.
State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, China.
出版信息
Talanta. 2019 Apr 1;195:757-763. doi: 10.1016/j.talanta.2018.12.006. Epub 2018 Dec 5.
A new method for the determination of 19 polyaromatic hydrocarbons (PAHs) and 12 hydroxy-polyaromatic hydrocarbons (OHPAHs) in fine particulate matter (PM) was developed using atmospheric pressure gas chromatography-tandem mass spectrometry (APGC-MS/MS). Better sensitivity was achieved by APGC-MS/MS than conventional liquid chromatography or gas chromatography coupled with mass spectrometry. The method detection limits (< 0.4 pg m for PAHs and < 0.076 pg m for OHPAHs), recoveries (67.7-120%), repeatability (RSD of 0.9-19.1%) and linearity (R > 0.99) were obtained for the analysis of PM samples. The content profile of 19 PAHs and 12 OHPAHs were successfully obtained in 55 PM samples collected from two major Chinese megacities, Taiyuan and Guangzhou, in both summer and winter by this method. Based on the concentrations, possible emission sources for the pollutants were also identified.
采用常压气相色谱-串联质谱法（APGC-MS/MS）建立了一种测定细颗粒物（PM）中 19 种多环芳烃（PAHs）和 12 种羟基多环芳烃（OHPAHs）的新方法。与传统的液相色谱或气相色谱-质谱联用相比，APGC-MS/MS 具有更高的灵敏度。该方法对 PM 样品的检测限（PAHs 为<0.4pg/m，OHPAHs 为<0.076pg/m）、回收率（67.7-120%）、重复性（RSD 为 0.9-19.1%）和线性（R>0.99）均令人满意。利用该方法成功地分析了中国两个特大城市太原和广州夏冬两季采集的 55 个 PM 样品中的 19 种 PAHs 和 12 种 OHPAHs 的含量分布。根据浓度，还确定了污染物的可能排放源。
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