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Determination of 23 perfluorinated alkylated substances in water and suspended particles by ultra-performance liquid chromatography/tandem mass spectrometry

文献类型: 外文期刊

作者: Wang, X. F. 1 ; Wang, Q. 1 ; Li, Z. G. 1 ; Huang, K. 1 ; Li, L. D. 1 ; Zhao, D. H. 1 ;

作者机构: 1.Minist Agr, Key Lab Aquat Prod Proc, Guangzhou, Guangdong, Peoples R China

2.Lab Qual & Safety Risk Assessment Aquat Prod Stor, Guangzhou, Guangdong, Peoples R China

3.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangzhou 510300, Guangdong, Peoples R China

关键词: Perfluorinated alkylated substances; water samples; suspended particle samples; ultra-performance liquid chromatography/tandem mass spectrometry; solid phase extraction; dispersive solid phase extraction; determination

期刊名称:JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING ( 2020影响因子:2.269; 五年影响因子:2.108 )

ISSN: 1093-4529

年卷期: 2018 年 53 卷 14 期

页码:

收录情况: SCI

摘要: A practical multi-residue method based on ultra-performance liquid chromatography/tandem mass spectrometry was developed for the simultaneous determination of 23 perfluorinated alkylated substances (PFASs) in water and suspended particles. Suspended particle samples were extracted with 1% formic acid-acetonitrile and cleaned by matrix solid phase dispersion extraction using a C-18 sorbent and graphitized carbon black. Water samples were filtered through 0.7-mu m glass fiber membranes and enriched utilizing weak anion exchange cartridges. The eluent was dried under a gentle stream of N-2 at 45 degrees C and suspended in 1 mL acetonitrile-5 mM ammonium acetate (1:1, vol:vol). Gradient elution for chromatographic separation utilized acetonitrile and 5 mM ammonium acetate as mobile phases on a reverse phase C-18 column. The compounds were quantified using an internal standard method in multiple reaction-monitoring mode. Limits of detection and quantitation of the 23 PFAS test compounds in water samples were 0.5-10 ng L-1 and 2-20 ng L-1, respectively. Recoveries at three fortified levels of 20, 50, and 200 ng L-1 ranged from 68.5% to 118% with relative standard deviations below 9.6%. We used this method to determine PFAS levels in real water and suspended particle samples and found high sensitivity and good reproducibility.

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