Citation: CHEN Yong-Jie, ZHANG Bei-Bei, CHEN Guo-Song, ZHAO Yong-Gang, WANG Ji-Kui. Analysis of 20 Kinds of Perfluoroalkyl and Polyfluoroalkyl Substances in Wastewater and Sludge Samples with Ultra-High Performance Liquid Chromatography-Tandem Mass Spectrometry[J]. Chinese Journal of Analytical Chemistry, ;2019, 47(4): 533-540. doi: 10.19756/j.issn.0253-3820.181766 shu

Analysis of 20 Kinds of Perfluoroalkyl and Polyfluoroalkyl Substances in Wastewater and Sludge Samples with Ultra-High Performance Liquid Chromatography-Tandem Mass Spectrometry

1.
School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China;
2.
State Environmental Protection Key Laboratory of Monitoring and Analysis for Organic Pollutants in Surface Water, Jiangsu Provincial Environmental Monitoring Center, Nanjing 210036, China

Received Date: 9 December 2018
Revised Date: 16 January 2019

To evaluate PFASs (Per- and polyfluoroalkyl substances) in the environment comprehensively, two trace analytical methods were developed for the determination of 12 kinds of perfluoroalkyl acids (PFAAs) and 8 kinds of associated precursor substances. The first ultra-high-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method was applied to analysis of 9 perfluorooalkyl carboxylates (PFCAs) and 3 perfluorooalkyl sulfonates (PFSAs). Two perfluoroalkane sulfonamidoethanols (FOSEs), 2 perfluoro-1-octanesulfonamides (FOSAs), and 4 fluorotelomer alcohols (FTOHs) were detected with the second UPLC-MS/MS method because these compounds have different physicochemical properties from those of previous ones. The wastewater samples were extracted and cleaned with WAX solid-phase extraction cartridges. The sludge samples were extracted with accelerated solvent extraction (ASE) with acetonitrile. With the use of UPLC-MS/MS, the limits of quantification were in the range of 0.24-4.32 ng/L in wastewater samples and 0.04-0.12 ng/g in sludge samples. The recoveries were in the range of 62%-130% in wastewater samples and 71%-126% in sludge samples, and the RSDs were 0.9%-12.7% and 0.4%-15.2%, respectively. The method was sensitive and accurate, and also suitable for simultaneous determination of 20 kinds of PFASs in wastewater and sludge samples.
- Per- and polyfluoroalkyl substances,
- Perfluoroalkane sulfonamidoethanols,
- Perfluoro-1-octanesulfonamides,
- Fluorotelomer alcohols,
- Wastewater,
- Sludge
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沈阳化工大学材料科学与工程学院沈阳 110142