净水技术2024，Vol.43Issue(8)：61-69,166,10.DOI:10.15890/j.cnki.jsjs.2024.08.009
超高效液相色谱-三重四极杆质谱联用仪测定环境水相和沉积物中19种全/多氟烷基化合物
Determination of 19 PFASs Compounds in Environmental Water and Sediments with Ultra-High Performance Liquid Chromatography-Triple Quadrupole Mass Spectrometry
摘要
Abstract
Perfluoro and polyfluoroalkyl substances(PFASs)are known for their ecological toxicity,long-range mobility,and propensity for bioaccumulation through the food chain within aquatic environments.As the exposure risks of PFASs in water environments continue to escalate,the development of PFASs detection techniques has become a focal point for researchers.This study has refined the pre-treatment conditions for the enrichment of water samples using solid-phase extraction and the extraction of sediment samples using an ultrasonic oscillation-extraction method.Additionally,it has optimized the separation and identification conditions for liquid chromatography and triple quadrupole mass spectrometry,integrating an ultra-high-performance liquid chromatography-tandem mass spectrometry(UHPLC-MS/MS)detection method suitable for the quantification of 19 types of PFASs in environmental water and sediment matrices.Experimental results indicated that the recovery rates of 19 PFASs at low,medium,and high concentrations in the aqueous phase and sediment are 60.2％to 120.0％,74.3％to 114.2％,and 65.4％to 107.2％,respectively,with relative standard deviations(RSD)of 2.1％to 12.1％,4.5％to 11.7％,and 4.3％to 9.8％,respectively.In the sediment,the recovery rates of 19 PFASs at the three concentrations of low,medium,and high were 80.3％to 124.1％,89.9％to 104.3％,and 95.1％to 105.7％,with RSD values of 5.0％to 14.3％,3.1％to 10.9％,and 2.6％to 9.9％,respectively.The PFASs in both the aqueous phase and sediment exhibited good linearity within a certain range,with method detection limits of 0.2 ng/L to 0.5 ng/L and 0.1 ng/g to 0.6 ng/g,and method quantification limits of 0.8 to 2.0 ng/L and 0.4 to 2.5 ng/g.This method has a simple pretreatment process,good methodological indicators,and is suitable for high-throughput detection of PFASs in various types of water quality and sediment.关键词
全/多氟化合物/水/沉积物/前处理/检测方法Key words
perfluoro and polyfluoroalkyl substances(PFASs)/water/sediment/pretreatment/analytical method分类
资源环境引用本文复制引用
高珂,辛晓东,刘红,刘莉,宋艳,贾瑞宝..超高效液相色谱-三重四极杆质谱联用仪测定环境水相和沉积物中19种全/多氟烷基化合物[J].净水技术,2024,43(8):61-69,166,10.基金项目
国家重点研发计划项目(2021YFC3200802) （2021YFC3200802）
