Atmospheric pressure gas chromatography-tandem mass spectrometry analysis of fourteen emerging polycyclic aromatic sulfur heterocycles in PM_(2.5)  

作　　者：Yanhao Zhang Yi-Jie Chen Yuanyuan Song Chuan Dong Zongwei Cai 

机构地区：[1]State Key Laboratory of Environmental and Biological Analysis,Department of Chemistry,Hong Kong Baptist University,Hong Kong SAR,China [2]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 510006,China [3]Institute of Environmental Science,Shanxi University,Taiyuan 030006,China

出　　处：《Chinese Chemical Letters》2021年第2期801-804,共4页中国化学快报（英文版）

基　　金：financial support from the National Natural Science Foundation of China (Nos.91843301 and 91543202);National Key Research and Development Program Cooperation on Scientific and Technological Innovation in Hong Kong,Macao and Taiwan (No. 2017YFE0191000)。

摘　　要：Research on pollution characteristics and toxicities of emerging polycyclic aromatic sulfur heterocycles(PASHs) in PM_(2.5) has not been reported due to the lack of analytical method with the needed performance.In the present study,a novel method for the determination of 14 PASHs in PM_(2.5) was developed using atmospheric pressure gas chro matography-tandem mass spectrometry(APGC-MS/MS).Atmospheric pressure chemical ionization was operated with multiple reaction monitoring in positive ionization mode.High sensitivity(method detection limit <1.673 pg/m^(3)),acceptable re coveries(67.6%-120.8%) and precisions(RSD of 2.2%-15.4%) were obtained.The method was successfully applied for analyzing PASHs in 10 PM_(2.5) samples collected from Taiyuan,a typical industrial city in China,in 2016,The total concentrations were from 929 pg/m^(3) to 14,593 pg/m^(3).The determined levels indicated that further investigations on environmental fate and toxicities of PM_(2.5)-bound PASHs may be needed.

关 键 词：Atmospheric pressure gas chromatography-tandem mass spectrometry Multiple reaction monitoring Polycyclic aromatic sulfur heterocycles PM_(2.5) Ambient concentrations 

分 类 号：O657.63[理学—分析化学] X831[理学—化学]