Quantification of perfluorinated compounds in atmospheric particulate shows potential connection with environmental event

作     者：Hua Tang Ying Wang Shengling Si Hongli Li David Da Yong Chen Hua Tang;Ying Wang;Shengling Si;Hongli Li;David Da Yong Chen

作者机构：National Institute of Metrology18 BeisanhuandongluChaoyang DistrictBeijing 100029China School of Chemistry and Materials ScienceNanjing Normal UniversityNanjing 210023China Si Chuan Zhong Ce Biao Wu Technology Co.Ltd.Sichuan 610052China Department of ChemistryUniversity of British ColumbiaVancouver V6T 1Z1BCCanada 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2024年第136卷第2期

页      面：237-247页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 070602[理学-大气物理学与大气环境] 0706[理学-大气科学] 

基　　金：supported by the NQI Project of National key R&D Program of China (No.2016YFF0201102) the project for the“Development of analytical method and certified reference materials for tracing air pollutant source” (No.21AKY1514)from the National Institute of Metrology,Beijing,China 

主　　题：Selective pressurized liquid extraction Liquid chromatography-mass spectrometry Perfluorinated compounds Atmospheric particulate matter Pollution control 

摘      要：A method of quantification of perfluorinated compounds(PFCs)from atmospheric particulate matter(APM)is described.A single step pretreatment method,selective pressurized liquid extraction(SPLE),was developed to reduce the high matrix background and avoid contamination from commonly used multiple sample pretreatment *** effective sorbent was selected to purify the PFCs during SPLE,followed by liquid chromatography-tandem mass spectrometry(LC–MS/MS),for quantification of *** affecting the SPLE efficiency,including temperature,static extraction time,and number of extraction cycles used,were *** optimum conditions were found to be 120℃,10 min,and 3 cycles,***-MS/MS method was developed to obtain the optimal sensitivity specific to *** method detection limits(MDLs)were 0.006 to 0.48 ng/g for the PFCs studied and the linear response range was from 0.1 to 100 ng/*** ensure accurate values were obtained,each step of the experiment was evaluated and controlled to prevent *** optimized method was tested by performing spiking experiments in natural particulate matter matrices and good rates of recovery and reproducibility were obtained for all target ***,the method was successfully used to measure 16 PFCs in the APM samples collected in Beijing over five years from 2015 to *** is observed that some PFCs follow the trend of total PFC changes,and can be attributed to the environment influencing events and policy enforcement,while others don t seem to change as much with time of the year or from year to year.