title: Occurrence investigation of perfluorinated compounds in surface water from East Lake (Wuhan, China) upon rapid and selective magnetic solid-phase extraction.
abstract: Using a novel magnetic nanocomposite as adsorbent, a convenient and effective magnetic solid-phase extraction (MSPE) procedure was established for selective separation and concentration of nine perfluorinated compounds (PFCs) in surface water sample. Then an ultra high-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) system was employed for detection of PFCs. Good linearity of the developed analytical method was in the range of 0.5-100 ng L-1with R2> 0.9917, and the limits of detection (LODs) ranged from 0.029 to 0.099 ng L-1. At three fortified concentrations of 0.5, 5 and 50 ng L-1, the spiked recoveries of PFCs were in the range of 90.05-106.67% with RSDs < 12.62% (n = 3). The proposed analytical method was applied for determination of PFCs in surface water from East Lake (Wuhan, China). The total concentrations of nine PFCs ranged from 30.12 to 125.35 ng L-1, with perfluorooctane sulfonate and perfluoroctanoic acid as the most prevalent PFCs, and the greatest concentrations of PFCs were observed in Niuchao lakelet. The concentrations of the PFCs (C ≥ 11) were mostly less than the limits of quantification (LOQs), attributed to the possibility that the more hydrophobic long-chain PFCs are potential to accumulate in sediment and aquatic biota.
authors.affiliation: Key Laboratory of Environment and Health, Ministry of Education &Ministry of Environmental Protection, and State Key Laboratory of Environment Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China.|Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong, China.
authors.forename: Yusun
authors.initials: Y
authors.lastname: Zhou
authors.affiliation: Key Laboratory of Environment and Health, Ministry of Education &Ministry of Environmental Protection, and State Key Laboratory of Environment Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China.
authors.forename: Yun
authors.initials: Y
authors.lastname: Tao
authors.affiliation: Department of Pharmacy, Jingzhou Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jingzhou 434020, Hubei, China.
authors.forename: Huarong
authors.initials: H
authors.lastname: Li
authors.affiliation: Key Laboratory of Environment and Health, Ministry of Education &Ministry of Environmental Protection, and State Key Laboratory of Environment Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China.
authors.forename: Tingting
authors.initials: T
authors.lastname: Zhou
authors.affiliation: Key Laboratory of Environment and Health, Ministry of Education &Ministry of Environmental Protection, and State Key Laboratory of Environment Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Jing
authors.affiliation: Key Laboratory of Environment and Health, Ministry of Education &Ministry of Environmental Protection, and State Key Laboratory of Environment Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China.
authors.forename: Yikai
authors.initials: Y
authors.lastname: Zhou
authors.affiliation: Key Laboratory of Environment and Health, Ministry of Education &Ministry of Environmental Protection, and State Key Laboratory of Environment Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China.
authors.forename: Surong
authors.initials: S
authors.lastname: Mei