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Song XL, Lv H, Liao KC, Wang DD, Li GM, Wu YY, Chen QY, Chen Y. Application of magnetic carbon nanotube composite nanospheres in magnetic solid-phase extraction of trace perfluoroalkyl substances from environmental water samples. Talanta 2023; 253:123930. [PMID: 36113335 DOI: 10.1016/j.talanta.2022.123930] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 09/05/2022] [Accepted: 09/07/2022] [Indexed: 12/13/2022]
Abstract
The layer-by-layer assembly technique was used to synthesize novel multiwalled carbon nanotubes (MWCNTs) on magnetic carbon (Fe3O4@C) nanospheres, which were then used to extract six perfluoroalkyl substances (PFAS) in environmental real water samples using ultra high-performance liquid chromatography coupled to tandem mass spectrometry. The as-synthesized sorbent MWCNTs@Fe3O4@C was employed for magnetic solid-phase extraction (MSPE). The as-prepared MWCNTs@Fe3O4@C was characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and vibrating sample magnetometer (VSM). The main extraction parameters were systematically optimized by Box-Behnken design. Under optimal conditions, excellent results were achieved. The synthesized sorbent showed wide linear ranges (0.1-1000 ng L-1), low detection limits (0.03-0.09 ng L-1) and good repeatability (3.80%-9.52%) for extracting and detecting six PFAS. The developed method was also applied to analyze six PFAS from environmental water samples. This study indicated that MWCNTs@Fe3O4@C composites are promising materials for the extraction and determination of PFAS from water samples.
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Affiliation(s)
- Xin-Li Song
- College of Food Science and Pharmaceutical Engineering, Zaozhuang University, Zaozhuang, 277160, China.
| | - Hui Lv
- College of Food Science and Pharmaceutical Engineering, Zaozhuang University, Zaozhuang, 277160, China
| | - Ke-Chao Liao
- College of Food Science and Pharmaceutical Engineering, Zaozhuang University, Zaozhuang, 277160, China
| | - Dong-Dong Wang
- College of Food Science and Pharmaceutical Engineering, Zaozhuang University, Zaozhuang, 277160, China
| | - Gui-Mei Li
- College of Food Science and Pharmaceutical Engineering, Zaozhuang University, Zaozhuang, 277160, China
| | - Yi-Yao Wu
- College of Food Science and Pharmaceutical Engineering, Zaozhuang University, Zaozhuang, 277160, China
| | - Qian-Yu Chen
- College of Food Science and Pharmaceutical Engineering, Zaozhuang University, Zaozhuang, 277160, China
| | - Yue Chen
- Department of Criminal Science and Technology, Shandong Police College, Jinan, 250014, China.
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2
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Ganesan S, Chawengkijwanich C, Gopalakrishnan M, Janjaroen D. Detection methods for sub-nanogram level of emerging pollutants - Per and polyfluoroalkyl substances. Food Chem Toxicol 2022; 168:113377. [PMID: 35995078 DOI: 10.1016/j.fct.2022.113377] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 07/03/2022] [Accepted: 08/11/2022] [Indexed: 11/24/2022]
Abstract
Per- and polyfluoroalkyl substances (PFAS) are organofluorine compounds has been manufactured for more than five decades and used in different purposes. Among persistent organic pollutants, PFAS are toxic, bioaccumulative in humans, wildlife, and global environment. As per environmental protection agency (EPA) guidelines, the perfluorooctanoate and perfluorooctane sulfonate permissible limit was 0.07 ng/L in drinking water. When the concentration exceeds the acceptable limit, it has negative consequences for humans. In such a case, PFAS monitoring is critical, and a quick detection technique are highly needed. Health departments and regulatory agencies have interests in monitoring of PFAS presences and exposures. For the detection of PFAS, numerous highly precise and sensitive chromatographic methods are available. However, the drawbacks of analytical techniques include timely sample preparations and the lack of on-site applicability. As a result, there is an increasing demand for simple sensor systems for monitoring of PFAS in real field samples. In this review, we first describe the sample pre-treatment and analytical techniques for the detection of PFAS. Second, we broadly discussed available sensor system for the quantification of PFAS in different filed samples. Finally, future trends in PFASs sensor are also presented.
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Affiliation(s)
- Sunantha Ganesan
- Department of Environmental Engineering, Chulalongkorn University, Bangkok, 10330, Thailand.
| | - Chamorn Chawengkijwanich
- Research Network of NANOTEC - CU on Environment, Bangkok, 10330, Thailand; National Nanotechnology Center, National Science and Technology Development Agency (NSTDA), 12120, Pathumthani, Thailand.
| | - Mohan Gopalakrishnan
- Department of Chemical Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Dao Janjaroen
- Department of Environmental Engineering, Chulalongkorn University, Bangkok, 10330, Thailand; National Nanotechnology Center, National Science and Technology Development Agency (NSTDA), 12120, Pathumthani, Thailand.
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3
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Fluorine-functionalized conjugated microporous polymer as adsorbents for solid-phase extraction of nine perfluorinated alkyl substances. J Chromatogr A 2022; 1681:463457. [DOI: 10.1016/j.chroma.2022.463457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 08/11/2022] [Accepted: 08/29/2022] [Indexed: 11/19/2022]
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4
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Huang Z, Liu P, Lin X, Xing Y, Zhou Y, Luo Y, Lee HK. Cucurbit(n)uril-functionalized magnetic composite for the dispersive solid-phase extraction of perfluoroalkyl and polyfluoroalkyl substances in environmental samples with determination by ultra-high performance liquid chromatography coupled to Orbitrap high-resolution mass spectrometry. J Chromatogr A 2022; 1674:463151. [DOI: 10.1016/j.chroma.2022.463151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 05/11/2022] [Accepted: 05/13/2022] [Indexed: 10/18/2022]
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5
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Kholofelo Selahle S, Mpupa A, Nosizo Nomngongo P. Liquid chromatographic determination of per- and polyfluoroalkyl substances in environmental river water samples. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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6
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Jia S, Marques Dos Santos M, Li C, Snyder SA. Recent advances in mass spectrometry analytical techniques for per- and polyfluoroalkyl substances (PFAS). Anal Bioanal Chem 2022; 414:2795-2807. [PMID: 35132477 DOI: 10.1007/s00216-022-03905-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 01/09/2022] [Accepted: 01/14/2022] [Indexed: 11/29/2022]
Abstract
The ubiquitous presence of per- and polyfluoroalkyl substances (PFAS) in various environments has led to increasing concern, and these chemicals have been confirmed as global contaminants. Following the chemical regulatory restrictions imposed, PFAS alternatives that are presumed to be less toxic have been manufactured to replace the traditional ones in the market. However, owing to the original release and alternative usage, continuous accumulation of PFAS has been reported in environmental and human samples, with uncertain consequences for ecosystem and human health. It is crucial to promote and improve existing analytical techniques to facilitate the detection of trace amounts of PFAS in diverse environmental matrices. This review summarizes analytical methods that have been applied to and advanced for targeted detection and suspect screening of PFAS, which mainly include (i) sampling and sample preparation methods for various environment matrices and organisms, and quality assurance/quality control during the analysis process, and (ii) quantitative methods for targeted analysis and automated suspect screening strategies for non-targeted PFAS analysis, together with their applications, advantages, shortcomings, and need for new method development.
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Affiliation(s)
- Shenglan Jia
- Nanyang Environment and Water Research Institute (NEWRI), Nanyang Technological University, 1 Cleantech Loop, CleanTech One, Singapore, 637141, Singapore
| | - Mauricius Marques Dos Santos
- Nanyang Environment and Water Research Institute (NEWRI), Nanyang Technological University, 1 Cleantech Loop, CleanTech One, Singapore, 637141, Singapore
| | - Caixia Li
- Nanyang Environment and Water Research Institute (NEWRI), Nanyang Technological University, 1 Cleantech Loop, CleanTech One, Singapore, 637141, Singapore
| | - Shane A Snyder
- Nanyang Environment and Water Research Institute (NEWRI), Nanyang Technological University, 1 Cleantech Loop, CleanTech One, Singapore, 637141, Singapore.
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Heo DG, Lee DC, Kwon YM, Seol MJ, Sung Moon J, Min Chung S, Kim JH. Simultaneous Determination of Perfluorooctanoic Acid and Perfluorooctanesulfonic Acid in Korean Sera Using LC-MS/MS. J Chromatogr B Analyt Technol Biomed Life Sci 2022; 1192:123138. [DOI: 10.1016/j.jchromb.2022.123138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 01/07/2022] [Accepted: 01/21/2022] [Indexed: 11/26/2022]
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8
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Pilli S, Pandey AK, Pandey V, Pandey K, Muddam T, Thirunagari BK, Thota ST, Varjani S, Tyagi RD. Detection and removal of poly and perfluoroalkyl polluting substances for sustainable environment. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 297:113336. [PMID: 34325368 DOI: 10.1016/j.jenvman.2021.113336] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 07/17/2021] [Accepted: 07/18/2021] [Indexed: 06/13/2023]
Abstract
PFAs (poly and perfluoroalkyl compounds) are hazardous and bioaccumulative chemicals that do not readily biodegrade or neutralize under normal environmental conditions. They have various industrial, commercial, domestic and defence applications. According to the Organization for Economic Co-operation and Development, there are around 4700 PFAs registered to date. They are present in every stream of life, and they are often emerging and are even difficult to be detected by the standard chemical methods. This review aims to focus on the sources of various PFAs and the toxicities they impose on the environment and especially on humankind. Drinking water, food packaging, industrial areas and commercial household products are the primary PFAs sources. Some of the well-known treatment methods for remediation of PFAs presented in the literature are activated carbon, filtration, reverse osmosis, nano filtration, oxidation processes etc. The crucial stage of handling the PFAs occurs in determining and analysing the type of PFA and its remedy. This paper provides a state-of-the-art review of determination & tools, and techniques for remediation of PFAs in the environment. Improving new treatment methodologies that are economical and sustainable are essential for excluding the PFAs from the environment.
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Affiliation(s)
- Sridhar Pilli
- Department of Civil Engineering, National Institute of Technology Warangal, Fathimanagar, Telangana, 506004, India.
| | - Ashutosh Kumar Pandey
- Centre for Energy and Environmental Sustainability-India, Lucknow, 226 029, Uttar Pradesh, India
| | - Vivek Pandey
- Department of Geography, Allahabad Degree College (A.D.C.), Allahabad University, Prayagraj, 211003, Uttar Pradesh, India
| | - Kritika Pandey
- Department of Biotechnology, Dr. Ambedkar Institute of Technology for Handicapped, Kanpur, 208024, Uttar Pradesh, India
| | - Tulasiram Muddam
- Department of Civil Engineering, National Institute of Technology Warangal, Fathimanagar, Telangana, 506004, India
| | - Baby Keerthi Thirunagari
- Department of Civil Engineering, National Institute of Technology Warangal, Fathimanagar, Telangana, 506004, India
| | - Sai Teja Thota
- Department of Civil Engineering, National Institute of Technology Warangal, Fathimanagar, Telangana, 506004, India
| | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar, 382 010, Gujarat, India.
| | - Rajeshwar Dayal Tyagi
- Chief Scientific Officer, BOSK Bioproducts, 399 Rue Jacquard, Suite 100, Quebec, Canada
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Lu YY, Wang XL, Wang LL, Zhang W, Wei J, Lin JM, Zhao RS. Room-temperature synthesis of amino-functionalized magnetic covalent organic frameworks for efficient extraction of perfluoroalkyl acids in environmental water samples. JOURNAL OF HAZARDOUS MATERIALS 2021; 407:124782. [PMID: 33341577 DOI: 10.1016/j.jhazmat.2020.124782] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 11/29/2020] [Accepted: 12/03/2020] [Indexed: 06/12/2023]
Abstract
The novel amino-functionalized magnetic covalent organic framework nanocomposites (Fe3O4@[NH2]-COFs) were fabricated at room temperature, which were explored as a magnetic adsorbent for magnetic solid-phase extraction (MSPE). On the basis of the hydrophobic surfaces of magnetic nanocomposites and introduction of primary amines into the COFs shell, Fe3O4@[NH2]-COFs displayed excellent enrichment capacity in "catching" ultratrace perfluoroalkyl acids (PFAAs) from water samples because of the synergistic combination of hydrophobic and electrostatic interactions between PFAAs and Fe3O4@[NH2]-COFs. Under the optimized pretreatment and instrumental parameters, the proposed pretreatment approach, which hybridized MSPE using Fe3O4@[NH2]-COFs and HPLC-MS/MS, displayed favorable linearity (10-10,000 ng L-1) with R2 (0.9990-0.9999), low limits of detection (0.05-0.38 ng L-1), and excellent repeatability (3.7-9.2%). Moreover, the established approach was successfully utilized to determine PFAAs in real water samples with spiked recoveries ranging from 72.1% to 115.4%. Results indicated that Fe3O4@[NH2]-COFs would be a potential alternative for MSPE of PFAAs at ultra-low levels.
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Affiliation(s)
- Yuan-Yue Lu
- Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Jinan 250014, China.
| | - Xiao-Li Wang
- Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Jinan 250014, China.
| | - Lei-Lei Wang
- Qilu University of Technology (Shandong Academy of Sciences), Ecology Institute of Shandong Academy of Sciences, Shandong Province Key Laboratory of Applied Microbiology, Jinan 250014, China.
| | - Wen Zhang
- Qilu University of Technology (Shandong Academy of Sciences), Ecology Institute of Shandong Academy of Sciences, Shandong Province Key Laboratory of Applied Microbiology, Jinan 250014, China.
| | - Jinjian Wei
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, Jinan 250014, China.
| | - Jin-Ming Lin
- Department of Chemistry, Tsinghua University, Beijing 100084, China.
| | - Ru-Song Zhao
- Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Jinan 250014, China.
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10
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Sim W, Choi S, Choo G, Yang M, Park JH, Oh JE. Organophosphate Flame Retardants and Perfluoroalkyl Substances in Drinking Water Treatment Plants from Korea: Occurrence and Human Exposure. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:2645. [PMID: 33807996 PMCID: PMC7967649 DOI: 10.3390/ijerph18052645] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 02/25/2021] [Accepted: 03/02/2021] [Indexed: 01/27/2023]
Abstract
In this study, the concentrations of organophosphate flame retardants (OPFR) and perfluoroalkyl substances (PFAS) were investigated in raw water and treated water samples obtained from 18 drinking water treatment plants (DWTPs). The ∑13OPFR concentrations in the treated water samples (29.5-122 ng/L; median 47.5 ng/L) were lower than those in the raw water (37.7-231 ng/L; median 98.1 ng/L), which indicated the positive removal rates (0-80%) of ∑13OPFR in the DWTPs. The removal efficiencies of ∑27PFAS in the DWTPs ranged from -200% to 50%, with the ∑27PFAS concentrations in the raw water (4.15-154 ng/L; median 32.0 ng/L) being similar to or lower than those in the treated water (4.74-116 ng/L; median 42.2 ng/L). Among OPFR, tris(chloroisopropyl) phosphate (TCIPP) and tris(2-chloroethyl) phosphate (TCEP) were dominant in both raw water and treated water samples obtained from the DWTPs. The dominant PFAS (perfluorooctanoic acid (PFOA) and perfluorohexanoic acid (PFHxA)) in the raw water samples were slightly different from those in the treated water samples (PFOA, L-perfluorohexane sulfonate (L-PFHxS), and PFHxA). The 95-percentile daily intakes of ∑13OPFR and ∑27PFAS via drinking water consumption were estimated to be up to 4.9 ng/kg/d and 0.22 ng/kg/d, respectively. The hazard index values of OPFR and PFAS were lower than 1, suggesting the risks less than known hazardous levels.
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Affiliation(s)
- Wonjin Sim
- Education & Research Center for Infrastructure of Smart Ocean City (i-SOC Center), Pusan National University, Busan 46241, Korea;
| | - Sol Choi
- Department of Civil and Environmental Engineering, Pusan National University, Busan 46241, Korea; (S.C.); (G.C.)
| | - Gyojin Choo
- Department of Civil and Environmental Engineering, Pusan National University, Busan 46241, Korea; (S.C.); (G.C.)
- National Fishery Products Quality Management Service, Busan 48943, Korea
| | - Mihee Yang
- Department of Environmental Infrastructure Research, National Institute of Environmental Research, Ministry of Environment, Incheon 22689, Korea; (M.Y.); (J.-H.P.)
| | - Ju-Hyun Park
- Department of Environmental Infrastructure Research, National Institute of Environmental Research, Ministry of Environment, Incheon 22689, Korea; (M.Y.); (J.-H.P.)
| | - Jeong-Eun Oh
- Department of Civil and Environmental Engineering, Pusan National University, Busan 46241, Korea; (S.C.); (G.C.)
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Rodriguez KL, Hwang JH, Esfahani AR, Sadmani AHMA, Lee WH. Recent Developments of PFAS-Detecting Sensors and Future Direction: A Review. MICROMACHINES 2020; 11:E667. [PMID: 32650577 PMCID: PMC7407801 DOI: 10.3390/mi11070667] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 07/06/2020] [Accepted: 07/06/2020] [Indexed: 01/01/2023]
Abstract
Per- and poly-fluoroalkyl substances (PFASs) have recently been labeled as toxic constituents that exist in many aqueous environments. However, traditional methods used to determine the level of PFASs are often not appropriate for continuous environmental monitoring and management. Based on the current state of research, PFAS-detecting sensors have surfaced as a promising method of determination. These sensors are an innovative solution with characteristics that allow for in situ, low-cost, and easy-to-use capabilities. This paper presents a comprehensive review of the recent developments in PFAS-detecting sensors, and why the literature on determination methods has shifted in this direction compared to the traditional methods used. PFAS-detecting sensors discussed herein are primarily categorized in terms of the detection mechanism used. The topics covered also include the current limitations, as well as insight on the future direction of PFAS analyses. This paper is expected to be useful for the smart sensing technology development of PFAS detection methods and the associated environmental management best practices in smart cities of the future.
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Affiliation(s)
| | | | | | | | - Woo Hyoung Lee
- Department of Civil, Environmental, and Construction Engineering, University of Central Florida, Orlando, FL 32816, USA; (K.L.R.); (J.-H.H.); (A.R.E.); (A.H.M.A.S.)
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Lees H, Jõul P, Siilak K, Vaher M. Separation of perfluoroalkyl substances by using nonaqueous capillary electrophoresis with conductivity detection. SEPARATION SCIENCE PLUS 2020. [DOI: 10.1002/sscp.202000016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Heidi Lees
- Department of Chemistry and BiotechnologyTallinn University of Technology Tallinn Estonia
- Department of Energy TechnologyTallinn University of Technology Tallinn Estonia
| | - Piia Jõul
- Department of Chemistry and BiotechnologyTallinn University of Technology Tallinn Estonia
| | - Kristjan Siilak
- Department of Chemistry and BiotechnologyTallinn University of Technology Tallinn Estonia
| | - Merike Vaher
- Department of Chemistry and BiotechnologyTallinn University of Technology Tallinn Estonia
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Hu Z, Li Q, Xu L, Zhang W, Zhang Y. Determination of perfluoroalkyl carboxylic acids in environmental water samples by dispersive liquid–liquid microextraction with GC-MS analysis. J LIQ CHROMATOGR R T 2020. [DOI: 10.1080/10826076.2020.1728311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Zhixiong Hu
- Key Laboratory for Deep Processing of Major Grain and Oil (Wuhan Polytechnic University), Ministry of Education, Wuhan, China
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Qian Li
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, China
| | - Li Xu
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, China
| | - Weinong Zhang
- Key Laboratory for Deep Processing of Major Grain and Oil (Wuhan Polytechnic University), Ministry of Education, Wuhan, China
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Yanpeng Zhang
- Key Laboratory for Deep Processing of Major Grain and Oil (Wuhan Polytechnic University), Ministry of Education, Wuhan, China
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
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14
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Worldwide trends in tracing poly- and perfluoroalkyl substances (PFAS) in the environment. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.02.011] [Citation(s) in RCA: 149] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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