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He Y, Hua MZ, Feng S, Lu X. Development of a smartphone-integrated microfluidic paper-based optosensing platform coupled with molecular imprinting technique for in-situ determination of histamine in canned tuna. Food Chem 2024; 451:139446. [PMID: 38685180 DOI: 10.1016/j.foodchem.2024.139446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 04/08/2024] [Accepted: 04/20/2024] [Indexed: 05/02/2024]
Abstract
We reported the development of a smartphone-integrated microfluidic paper-based optosensing platform for in-situ detection and quantification of histamine in canned tuna. Molecularly imprinted polymers were synthesized via precipitation polymerization and utilized as dispersive solid phase extraction sorbent to selectively extract histamine from canned tuna. Carbon quantum dots functioning as a fluorescent probe were synthesized and introduced onto the microzones of the microfluidic paper device. This facilitated a noticeable fluorescence color change from dark red to vivid blue upon the addition of histamine. The change in fluorescence on the paper device was converted into specific RGB values using a portable UV light box combined with a smartphone. This assay achieved the limit of detection of 14.04 mg/kg with the linear range from 20 to 100 mg/kg of histamine in canned tuna. The entire molecular imprinting-microfluidic optosensing test could be completed in 45 min including sample preparation.
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Affiliation(s)
- Yihan He
- Department of Food Science and Agricultural Chemistry, Faculty of Agricultural and Environmental Sciences, McGill University, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada
| | - Marti Z Hua
- Department of Food Science and Agricultural Chemistry, Faculty of Agricultural and Environmental Sciences, McGill University, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada
| | - Shaolong Feng
- Department of Food Science and Agricultural Chemistry, Faculty of Agricultural and Environmental Sciences, McGill University, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada
| | - Xiaonan Lu
- Department of Food Science and Agricultural Chemistry, Faculty of Agricultural and Environmental Sciences, McGill University, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada.
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Lu W, Fu S, Lang X, Zhao H, Zhu D, Cao S, Chen L, Li J. Magnetic multi-template molecularly imprinted polymers for selective simultaneous extraction of chlorophenols followed by determination using HPLC. J Chromatogr A 2024; 1731:465196. [PMID: 39047444 DOI: 10.1016/j.chroma.2024.465196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 07/04/2024] [Accepted: 07/18/2024] [Indexed: 07/27/2024]
Abstract
Magnetic multi-template molecularly imprinted polymers (M-mt-MIPs) were successfully synthesized by surface imprinting and multi-template imprinting strategy, using polydopamine coated magnetic multi-walled carbon nanotubes as supporting materials, five typical chlorophenols (CPs) as templates, methacrylic acid as functional monomer and ethylene glycol dimethacrylate as cross-linker. Compared to non-imprinted polymers (NIPs), the as-prepared M-mt-MIPs showed high adsorption capacity (32.58‒80.63 mg g-1), rapid mass transfer and specific selectivity for the five targeted CPs, which were applied as magnetic solid-phase extraction (MSPE) adsorbents. Parameters affecting MSPE efficiency were detailed investigated, such as adsorbents dosage, sample pH, extraction time, type and volume of desorption solvent and salt effect. Combined with HPLC-DAD, a simple, rapid and sensitive method was established, showing good linearity (2‒200 μg L-1), low limits of detection (0.32‒0.49 μg L-1), and high enrichment factors (35.2‒108). The developed M-mt-MIPs-MSPE-HPLC method was applied to enrich and determine CPs in tannery wastewater, wet-blue and crust leather, and satisfactory spiking recoveries were attained in the range of 73.95‒109.7% with relative standard deviations (RSDs) of 2.13-8.48%. This study provided a new alternative material and method to rapid simultaneously extract and analyze low concentration of typical CPs in complicated matrices.
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Affiliation(s)
- Wenhui Lu
- Faculty of Light Industry, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; Key Laboratory for Green Technology of Leather Manufacture, China National Light Industry Council, Jinan 250353, China.
| | - Shanchao Fu
- Faculty of Light Industry, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Xiuqi Lang
- Faculty of Light Industry, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Huizhen Zhao
- Faculty of Light Industry, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Deyi Zhu
- Faculty of Light Industry, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; Key Laboratory for Green Technology of Leather Manufacture, China National Light Industry Council, Jinan 250353, China
| | - Shan Cao
- Faculty of Light Industry, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; Key Laboratory for Green Technology of Leather Manufacture, China National Light Industry Council, Jinan 250353, China
| | - Lingxin Chen
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.
| | - Jinhua Li
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.
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Safari E, Seyfinejad B, Farajzadeh MA, Afshar Mogaddam MR, Nemati M. Acid-base reaction-based dispersive solid phase extraction of favipiravir using biotin from biological samples prior to capillary electrophoresis analysis. RSC Adv 2024; 14:19612-19618. [PMID: 38903417 PMCID: PMC11188667 DOI: 10.1039/d3ra07356d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Accepted: 05/14/2024] [Indexed: 06/22/2024] Open
Abstract
In this study, an acid-base reaction-based dispersive solid-phase extraction method was developed for the extraction of favipiravir from deionized water, plasma and urine samples prior to its determination using a capillary electrophoresis-diode array detector. The target analyte was extracted from the samples using biotin as a green adsorbent. To reach this goal, the pH of the solution was first adjusted to 9.0 (using borate buffer), and the ionic strength of the solution was enhanced by adding sodium chloride (2.5%, w/v). Thereafter, an appropriate amount of biotin was dissolved in the solution and a homogenous phase was obtained. By adding hydrochloric acid to the solution, an acid-base reaction occurs via protonation of biotin, which decreases its solubility. During this procedure, the analyte was adsorbed onto the tiny particles of the produced adsorbent dispersed into the solution. The resulting mixture was sonicated to facilitate the adsorption of the analyte onto the adsorbent surface. After the collection of biotin particles through centrifugation, the analyte was eluted using acetonitrile and then used in the determination stage. Under the optimal extraction conditions, the calibration curve was linear from 250 to 3000 ng mL-1 with a coefficient of determination of 0.9968. Low limit of detection, and quantification, good repeatability on the same day and different days (relative standard deviation ≤ 8.2%), and acceptable extraction recovery were accessed. The applicability of the method was examined by performing it on spiked plasma and urine samples, and its performance was verified.
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Affiliation(s)
- Elnaz Safari
- Pharmaceutical and Food Control Department, Faculty of Pharmacy, Tabriz University of Medical Sciences Tabriz Iran
| | - Behrouz Seyfinejad
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences Tabriz Iran
- Food and Drug Safety Research Center, Tabriz University of Medical Sciences Tabriz Iran +98 4133344798 +98 4133372250
| | - Mir Ali Farajzadeh
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz Tabriz Iran
- Engineering Faculty, Near East University 99138 Nicosia Mersin 10 North Cyprus Turkey
| | - Mohammad Reza Afshar Mogaddam
- Food and Drug Safety Research Center, Tabriz University of Medical Sciences Tabriz Iran +98 4133344798 +98 4133372250
| | - Mahboob Nemati
- Pharmaceutical and Food Control Department, Faculty of Pharmacy, Tabriz University of Medical Sciences Tabriz Iran
- Food and Drug Safety Research Center, Tabriz University of Medical Sciences Tabriz Iran +98 4133344798 +98 4133372250
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Xiong H, Wan Y, Fan Y, Xu M, Yan A, Zhang Y, Jiang Q, Wan H. Reshaping the imprinting strategy through the thermo-responsive moiety-derived “deep eutectic solvents” effect. CHINESE CHEM LETT 2023. [DOI: 10.1016/j.cclet.2023.108382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
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Hassan AA, Tanimu A, Alhooshani K. Dispersive Micro-Solid Phase Extraction of Pharmaceutical Drugs from Wastewater and Human Urine Using (Z)-Octadec-9-en-1-aminium tetrachloroferrate (III) Ionic Liquid and Analysis by High-Performance Liquid Chromatography. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2022. [DOI: 10.1007/s13369-021-06034-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abstract
The review describes the development of batch solid phase extraction procedures based on dispersive (micro)solid phase extraction with molecularly imprinted polymers (MIPs) and magnetic MIPs (MMIPs). Advantages and disadvantages of the various MIPs for dispersive solid phase extraction and dispersive (micro)solid phase extraction are discussed. In addition, an effort has also been made to condense the information regarding MMIPs since there are a great variety of supports (magnetite and magnetite composites with carbon nanotubes, graphene oxide, or organic metal framework) and magnetite surface functionalization mechanisms for enhancing MIP synthesis, including reversible addition-fragmentation chain-transfer (RAFT) polymerization. Finally, drawbacks and future prospects for improving molecularly imprinted (micro)solid phase extraction (MIMSPE) are also appraised.
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Mumcu T, Seyhan Bozkurt S. Simultaneous extraction of five phenolic acids in fruits using ultrasound assisted aqueous two phase system based on polyethylene glycol-ionic liquid-sodium carbonate. SEP SCI TECHNOL 2021. [DOI: 10.1080/01496395.2021.1912765] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Taşkın Mumcu
- Dokuz Eylul University, Graduate School of Natural and Applied Science, Tınaztepe Campus, Izmir, Turkey
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Gubin A, Sukhanov P, Kushnir A, Sannikova N, Konopleva V, Nikulina A. Determination of phenols in natural and waste waters by capillary electrophoresis after preconcentration on magnetic nanoparticles coated with aminated hypercrosslinked polystyrene. J Sep Sci 2021; 44:1978-1988. [PMID: 33605527 DOI: 10.1002/jssc.202001177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 02/12/2021] [Accepted: 02/15/2021] [Indexed: 12/23/2022]
Abstract
An efficient sorbent for magnetic solid-phase extraction was developed from Fe3 O4 nanoparticles covered with aminated hypercrosslinked polystyrene. The sorbent has a saturation magnetization of 47 emu/g and a surface area of 509 mg/g and was tested for the extraction of 11 phenols from aqueous media. The optimum conditions were as follows: pH 3; adsorbent mass, 20.0 mg; adsorption time, 30 min; eluent (acetone) volume, 0.5 mL; and desorption time, 5 min. The enrichment factor after desorption reached 1595-1716 and the maximum adsorption capacity was 501-909 mg/g. Capillary electrophoresis was applied successively to separate 11 phenols after solid-phase extraction. The best separation was achieved using a fused silica capillary and borate buffer (pH 10.7) as a supporting electrolyte. After optimization, the linearity range was from 0.2 to 950 μg/L, and the limits of detection were 0.05-0.2 μg/L. The relative standard deviation varied from 6.1 to 8.7% (C = 1 μg/L) and from 2.9 to 3.5% (C = 500 μg/L). The determination of phenols is complicated in eutrophic water and spring water with a high content of humic and fulvic acids.
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Affiliation(s)
- Alexander Gubin
- Faculty of Ecology and Chemical Technology, Voronezh State University of Engineering Technologies, Voronezh, 394036, Russia
| | - Pavel Sukhanov
- Faculty of Ecology and Chemical Technology, Voronezh State University of Engineering Technologies, Voronezh, 394036, Russia
| | - Aleksei Kushnir
- Faculty of Ecology and Chemical Technology, Voronezh State University of Engineering Technologies, Voronezh, 394036, Russia
| | - Natalia Sannikova
- Faculty of Ecology and Chemical Technology, Voronezh State University of Engineering Technologies, Voronezh, 394036, Russia
| | - Victoria Konopleva
- Faculty of Ecology and Chemical Technology, Voronezh State University of Engineering Technologies, Voronezh, 394036, Russia
| | - Alla Nikulina
- Faculty of Ecology and Chemical Technology, Voronezh State University of Engineering Technologies, Voronezh, 394036, Russia
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9
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Combining capillary electromigration with molecular imprinting techniques towards an optimal separation and determination. Talanta 2021; 221:121546. [DOI: 10.1016/j.talanta.2020.121546] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 08/19/2020] [Accepted: 08/20/2020] [Indexed: 01/24/2023]
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10
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Laser scribed graphene: A novel platform for highly sensitive detection of electroactive biomolecules. Biosens Bioelectron 2020; 168:112509. [DOI: 10.1016/j.bios.2020.112509] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 08/03/2020] [Accepted: 08/09/2020] [Indexed: 01/05/2023]
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Gopal K, Al deeb I, Raaov M, Suah F, Samad N, Yahaya N, Lim V, Zain N. Supramolecular solvent combined with dispersive solid phase extraction based magnetic silicone surfactant activated charcoal adsorbent for extraction of phenolic compounds from industrial wastewater. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105110] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Wang X, Liu H, Sun Z, Zhao S, Zhou Y, Li J, Cai T, Gong B. Monodisperse restricted access material with molecularly imprinted surface for selective solid‐phase extraction of 17β‐estradiol from milk. J Sep Sci 2020; 43:3520-3533. [DOI: 10.1002/jssc.202000449] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 06/19/2020] [Accepted: 06/22/2020] [Indexed: 01/10/2023]
Affiliation(s)
- Xiaoxiao Wang
- School of Chemistry and Chemical EngineeringNorth Minzu University Yinchuan P. R. China
| | - Huachun Liu
- School of Chemistry and Chemical EngineeringNorth Minzu University Yinchuan P. R. China
| | - Zhian Sun
- School of Chemistry and Materials ScienceNorthwest University Xi'an P. R. China
| | - Shanwen Zhao
- School of Chemistry and Chemical EngineeringNorth Minzu University Yinchuan P. R. China
| | - Yanqiang Zhou
- School of Chemistry and Chemical EngineeringNorth Minzu University Yinchuan P. R. China
| | - Jianmin Li
- School of Chemistry and Chemical EngineeringNorth Minzu University Yinchuan P. R. China
| | - Tianpei Cai
- School of Chemistry and Chemical EngineeringNorth Minzu University Yinchuan P. R. China
| | - Bolin Gong
- School of Chemistry and Chemical EngineeringNorth Minzu University Yinchuan P. R. China
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Mehraban M, Manoochehri M. Determination of chlorophenols in water by liquid chromatography method after magnetic solid phase extraction based on SiO
2
/MIL‐101@Fe
3
O
4
nanoadsorbent. SEPARATION SCIENCE PLUS 2020. [DOI: 10.1002/sscp.201900076] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Masoomeh Mehraban
- Department of ChemistryCentral Tehran BranchIslamic Azad University Tehran 1467686831 Iran
| | - Mahboobeh Manoochehri
- Department of ChemistryCentral Tehran BranchIslamic Azad University Tehran 1467686831 Iran
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14
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Wang Q, Li G, Wang C, Wu Q, Wang Z. Layered porous organic frameworks as a novel adsorbent for the solid phase extraction of chlorophenols prior to their determination by HPLC-DAD. Mikrochim Acta 2020; 187:211. [PMID: 32152748 DOI: 10.1007/s00604-020-4195-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 02/25/2020] [Indexed: 11/29/2022]
Abstract
A layered porous organic framework (L-POF) with high surface area and porous volume was used as a novel adsorbent for adsorption of chlorophenols (CPs). The L-POF showed much higher adsorption capacity for four CPs (2-CP, 3-CP, 2,3-CP, 2,4-CP) compared with corresponding amorphous POF and some commercial adsorbents. Then, an L-POF-based solid-phase extraction method combined with high-performance liquid chromatography for analyzing CPs at the wavelength of 280 nm in water and honey samples was established. Under the optimum conditions, four CPs exhibited good linearity in the range 0.10-80.0 ng mL-1 for water and 2-400 ng g-1 for honey samples with determination coefficient r2 > 0.996. The method has low limits of detection of 0.03-0.10 ng mL-1 for water and 0.5-1.0 ng g-1 for honey samples. The method presented satisfactory precision and accuracy with relative standard deviations ≤ 7.8% and recoveries of 80-115%. High enrichment factors of 123-190 for water and 63-97 for honey were obtained. The validated method was successfully used to determine CPs in water and honey samples. The L-POF also displayed prominent adsorption performance for many other dyes and organic contaminants. This suggests that it can be an ideal candidate as adsorbent for wide application in separation and analysis. Graphical Abstract.
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Affiliation(s)
- Qianqian Wang
- College of Science, Hebei Agricultural University, Baoding, 071001, China
| | - Gaigai Li
- College of Science, Hebei Agricultural University, Baoding, 071001, China
| | - Chun Wang
- College of Science, Hebei Agricultural University, Baoding, 071001, China.
| | - Qiuhua Wu
- College of Science, Hebei Agricultural University, Baoding, 071001, China.
| | - Zhi Wang
- College of Science, Hebei Agricultural University, Baoding, 071001, China
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Farooq S, Nie J, Cheng Y, Bacha SAS, Chang W. Selective extraction of fungicide carbendazim in fruits using β‐cyclodextrin based molecularly imprinted polymers. J Sep Sci 2020; 43:1145-1153. [DOI: 10.1002/jssc.201901029] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 12/16/2019] [Accepted: 12/18/2019] [Indexed: 12/16/2022]
Affiliation(s)
- Saqib Farooq
- Research Institute of PomologyChinese Academy of Agricultural Sciences (CAAS) Liaoning P. R. China
- Laboratory of Quality and Safety Risk Assessment for Fruit (Xingcheng)Ministry of Agriculture and Rural Affairs P. R. China
- Quality Inspection and Test Center for Fruit and Nursery Stocks (Xingcheng)Ministry of Agriculture and Rural Affairs P. R. China
| | - Jiyun Nie
- Research Institute of PomologyChinese Academy of Agricultural Sciences (CAAS) Liaoning P. R. China
- College of HorticultureQingdao Agricultural University Qingdao P. R. China
- Laboratory of Quality and Safety Risk Assessment for Fruit (Xingcheng)Ministry of Agriculture and Rural Affairs P. R. China
- Quality Inspection and Test Center for Fruit and Nursery Stocks (Xingcheng)Ministry of Agriculture and Rural Affairs P. R. China
| | - Yang Cheng
- Research Institute of PomologyChinese Academy of Agricultural Sciences (CAAS) Liaoning P. R. China
- Laboratory of Quality and Safety Risk Assessment for Fruit (Xingcheng)Ministry of Agriculture and Rural Affairs P. R. China
- Quality Inspection and Test Center for Fruit and Nursery Stocks (Xingcheng)Ministry of Agriculture and Rural Affairs P. R. China
| | - Syed Asim Shah Bacha
- Research Institute of PomologyChinese Academy of Agricultural Sciences (CAAS) Liaoning P. R. China
- Laboratory of Quality and Safety Risk Assessment for Fruit (Xingcheng)Ministry of Agriculture and Rural Affairs P. R. China
- Quality Inspection and Test Center for Fruit and Nursery Stocks (Xingcheng)Ministry of Agriculture and Rural Affairs P. R. China
| | - Weixia Chang
- Research Institute of PomologyChinese Academy of Agricultural Sciences (CAAS) Liaoning P. R. China
- Laboratory of Quality and Safety Risk Assessment for Fruit (Xingcheng)Ministry of Agriculture and Rural Affairs P. R. China
- Quality Inspection and Test Center for Fruit and Nursery Stocks (Xingcheng)Ministry of Agriculture and Rural Affairs P. R. China
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Gao F, Chen X, Li X, Li J, Liu H, Chen L. Field-amplified sample injection combined with capillary electrophoresis for the simultaneous determination of five chlorophenols in water samples. Electrophoresis 2019; 40:1771-1778. [PMID: 31090073 DOI: 10.1002/elps.201800532] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 05/11/2019] [Accepted: 05/11/2019] [Indexed: 11/06/2022]
Abstract
A sensitive method of CZE-ultraviolet (UV) detection based on the on-line preconcentration strategy of field-amplified sample injection (FASI) was developed for the simultaneous determination of five kinds of chlorophenols (CPs) namely 4-chlorophenol (4-CP), 2-chlorophenol (2-CP), 2,4-dichlorophenol (2,4-DCP), 2,4,6-trichlorophenol (2,4,6-TCP), and 2,6-dichlorophenol (2,6-DCP) in water samples. Several parameters affecting CZE and FASI conditions were systematically investigated. Under the optimal conditions, sensitivity enhancement factors for 4-CP, 2-CP, 2,4-DCP, 2,4,6-TCP, and 2,6-DCP were 9, 27, 35, 43, and 43 folds, respectively, compared with the direct CZE, and the baseline separation was achieved within 5 min. Then, the developed FASI-CZE-UV method was applied to tap and lake water samples for the five CPs determination. The LODs (S/N = 3) were 0.0018-0.019 µg/mL and 0.0089-0.029 µg/mL in tap water and lake water, respectively. The values of LOQs in tap water (0.006-0.0074 µg/mL) were much lower than the maximum permissible concentrations of 2,4,6-TCP, 2,4-DCP, and 2-CP in drinking water stipulated by World Health Organization (WHO) namely 0.3, 0.04, and 0.01 µg/mL, respectively, and thereby the method was suitable to detect the CPs according to WHO guidelines. Furthermore, the method attained high recoveries in the range of 83.0-119.0% at three spiking levels of five CPs in the two types of water samples, with relative standard deviations of 0.37-8.58%. The developed method was proved to be a simple, sensitive, highly automated, and efficient alternative to CPs determination in real water samples.
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Affiliation(s)
- Fangfang Gao
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, P. R. China.,CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering and Technology, Chinese Academy of Sciences, Yantai Institute of Coastal Zone Research, Yantai, P. R. China
| | - Xiaoxia Chen
- Hebei Research Centre of Analysis and Testing, Hebei University of Science and Technology, Shijiazhuang, P. R. China
| | - Xiaobin Li
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, P. R. China
| | - Jinhua Li
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering and Technology, Chinese Academy of Sciences, Yantai Institute of Coastal Zone Research, Yantai, P. R. China
| | - Huitao Liu
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, P. R. China
| | - Lingxin Chen
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering and Technology, Chinese Academy of Sciences, Yantai Institute of Coastal Zone Research, Yantai, P. R. China
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17
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Recent Advances and Trends in Applications of Solid-Phase Extraction Techniques in Food and Environmental Analysis. Chromatographia 2019. [DOI: 10.1007/s10337-019-03726-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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18
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Chen X, Guo Z, Wang Y, Liu Y, Xu Y, Liu J, Li Z, Zhao J. Temperature sensitive polymer-dispersive liquid–liquid microextraction with gas chromatography–mass spectrometry for the determination of phenols. J Chromatogr A 2019; 1592:183-187. [DOI: 10.1016/j.chroma.2019.01.052] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 01/18/2019] [Accepted: 01/22/2019] [Indexed: 12/13/2022]
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19
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Ma S, Gao F, Lu W, Zhou N, You H, Li J, Chen L. Dispersive liquid-liquid microextraction coupled with pressure-assisted electrokinetic injection for simultaneous enrichment of seven phenolic compounds in water samples followed by determination using capillary electrophoresis. J Sep Sci 2019; 42:2263-2271. [PMID: 30997953 DOI: 10.1002/jssc.201900106] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 04/15/2019] [Accepted: 04/15/2019] [Indexed: 11/09/2022]
Abstract
Offline dispersive liquid-liquid microextraction combined with online pressure-assisted electrokinetic injection was developed to simultaneously enrich seven phenolic compounds in water samples, followed by determination using capillary electrophoresis, namely phenol, 4-chlorophenol, pentachlorophenol, 2,4,6-trichlorophenol, 2,4-dichlorophenol, 2-chlorophenol, and 2,6-dichlorophenol. Several parameters affecting separation performance of capillary electrophoresis and the enrichment efficiency of pressure-assisted electrokinetic injection and dispersive liquid-liquid microextraction were systematically investigated. Under the optimal conditions, seven phenolic compounds were completely separated within 14 min and good enrichment factors were obtained of 61, 236, 3705, 3288, 920, 86, and 1807 for phenol, 4-chlorophenol, pentachlorophenol, 2,4,6-trichlorophenol, 2,4-dichlorophenol, 2-chlorophenol, and 2,6-dichlorophenol, respectively. Good linearity was attained in the range of 0.1-200 μg/L for 2,4-dichlorophenol, 0.5-200 μg/L for 4-chlorophenol, pentachlorophenol, 2,4,6-trichlorophenol, 2-chlorophenol, and 2,6-dichlorophenol, as well as 1-200 μg/L for phenol, with correlation coefficients (r) over 0.9905. The limits of detection and quantification ranging from 0.03-0.28 and 0.07-0.94 μg/L were attained. This two step enrichment method was potentially applicable for the rapid and simultaneous determination of phenolic compounds in water samples.
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Affiliation(s)
- Suya Ma
- School of Environment and Chemical Engineering, Dalian University, Dalian, P. R. China.,CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering and Technology, Chinese Academy of Sciences, Yantai Institute of Coastal Zone Research, Yantai, P. R. China
| | - Fangfang Gao
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering and Technology, Chinese Academy of Sciences, Yantai Institute of Coastal Zone Research, Yantai, P. R. China
| | - Wenhui Lu
- School of Light Industry and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P. R. China
| | - Na Zhou
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering and Technology, Chinese Academy of Sciences, Yantai Institute of Coastal Zone Research, Yantai, P. R. China
| | - Huiyan You
- School of Environment and Chemical Engineering, Dalian University, Dalian, P. R. China
| | - Jinhua Li
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering and Technology, Chinese Academy of Sciences, Yantai Institute of Coastal Zone Research, Yantai, P. R. China
| | - Lingxin Chen
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering and Technology, Chinese Academy of Sciences, Yantai Institute of Coastal Zone Research, Yantai, P. R. China
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20
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Lu W, Liu J, Li J, Wang X, Lv M, Cui R, Chen L. Dual-template molecularly imprinted polymers for dispersive solid-phase extraction of fluoroquinolones in water samples coupled with high performance liquid chromatography. Analyst 2019; 144:1292-1302. [DOI: 10.1039/c8an02133c] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Dual-template molecularly imprinted polymers were synthesized using norfloxacin and enrofloxacin as templates by precipitation polymerization with a multi-template imprinting strategy.
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Affiliation(s)
- Wenhui Lu
- School of Light Industry Science and Technology
- Qilu University of Technology (Shandong Academy of Sciences)
- Jinan 250353
- China
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation
| | - Jie Liu
- School of Environment and Materials Engineering
- Yantai University
- Yantai 264005
- China
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation
| | - Jinhua Li
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation
- Research Center for Coastal Environmental Engineering and Technology
- Yantai Institute of Coastal Zone Research
- Chinese Academy of Sciences
- Yantai 264003
| | - Xiaoyan Wang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation
- Research Center for Coastal Environmental Engineering and Technology
- Yantai Institute of Coastal Zone Research
- Chinese Academy of Sciences
- Yantai 264003
| | - Min Lv
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation
- Research Center for Coastal Environmental Engineering and Technology
- Yantai Institute of Coastal Zone Research
- Chinese Academy of Sciences
- Yantai 264003
| | - Rong Cui
- School of Environment and Materials Engineering
- Yantai University
- Yantai 264005
- China
| | - Lingxin Chen
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation
- Research Center for Coastal Environmental Engineering and Technology
- Yantai Institute of Coastal Zone Research
- Chinese Academy of Sciences
- Yantai 264003
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21
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Chai M, Chen Y, Xuan R, Ma J, Jin Z, Wang T, Qiu D, Zhang L, Zhang Y. Application of polyethyleneimine-modified attapulgite for the solid-phase extraction of chlorophenols at trace levels in environmental water samples. Anal Bioanal Chem 2018; 410:6643-6651. [PMID: 30076461 DOI: 10.1007/s00216-018-1271-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 06/25/2018] [Accepted: 07/13/2018] [Indexed: 01/12/2023]
Abstract
A polyethyleneimine (PEI)-modified attapulgite was employed as a new adsorbent for solid-phase extraction (SPE) of chlorophenols (CPs) from environmental water samples. Key factors pivotal to extraction efficiency, such as organic additive, pH, salt, sample loading volume, elution volume, and sample loading flow rate, were investigated. The maximum adsorption capacity of CPs reached 38 mg/g, and the adsorption behavior could be described with the Langmuir isotherm model. The developed SPE procedure was then tested on river water samples. Of this cartridge, 0.4 g could be used to treat up to 100 mL of the water sample, with high recoveries achieved. The limit of detection (S/N = 3) and the limit of quantification (S/N = 10) were in range of 0.08-0.56 and 0.27-1.88 ng/mL, respectively. The mean recoveries of CPs spiked in river water samples ranged from 84.4 to 96.8% with relative standard deviations for the intra-day and inter-day less than 6.30%. The developed SPE method exhibited high sensitivity, high selectivity, excellent accuracy, and good repeatability to the analysis of trace CPs in complicated aqueous matrices. Graphical abstract Graphical abstract contains poor quality and small text inside the artwork. Please do not re-use the file that we have rejected or attempt to increase its resolution and re-save. It is originally poor, therefore, increasing the resolution will not solve the quality problem. We suggest that you provide us the original format. We prefer replacement figures containing vector/editable objects rather than embedded images. Preferred file formats are eps, ai, tiff and pdf.The separated figures were attached, which named Graphical abstract. ᅟ.
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Affiliation(s)
- Mengsa Chai
- School of Materials and Chemical Engineering, Ningbo University of Technology, Ningbo, 315211, China
| | - Yihui Chen
- Xiangshan Entry-Exit Inspection and Quarantine Bureau, Xiangshan, 310014, China
| | - Rongrong Xuan
- Obstetrical Department, Affiliated Hospital of Medical School Ningbo University and Ningbo City Third Hospital, Ningbo, 315016, China
| | - Junfeng Ma
- Proteomics and Metabolomics Shared Resource, Georgetown University Medical Center, Washington, DC, 20057, USA
| | - Zhenfeng Jin
- School of Materials and Chemical Engineering, Ningbo University of Technology, Ningbo, 315211, China
| | - Tingting Wang
- School of Materials and Chemical Engineering, Ningbo University of Technology, Ningbo, 315211, China.
| | - Dan Qiu
- School of Materials and Chemical Engineering, Ningbo University of Technology, Ningbo, 315211, China
| | - Lihua Zhang
- Key Laboratory of Separation Science for Analytical Chemistry, National Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Yukui Zhang
- Key Laboratory of Separation Science for Analytical Chemistry, National Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
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22
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Gao F, Lu W, Liu H, Li J, Chen L. Dispersive liquid-liquid microextraction of five chlorophenols in water samples followed by determination using capillary electrophoresis. Electrophoresis 2018; 39:2431-2438. [PMID: 30004131 DOI: 10.1002/elps.201800205] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 06/29/2018] [Accepted: 07/03/2018] [Indexed: 12/22/2022]
Abstract
Dispersive liquid-liquid microextraction (DLLME) coupled with CE was developed for simultaneous determination of five types of chlorophenols (CPs), namely 2-chlorophenol (2-CP), 4-chlorophenol (4-CP), 2,4-dichlorophenol (2,4-DCP), 2,6-dichlorophenol (2,6-DCP), and 2,4,6-trichlorophenol (2,4,6-TCP) in water samples. Several parameters affecting DLLME and CE conditions were systematically investigated. Under the optimized DLLME-CE conditions, the five CPs were separated completely within 7.5 min and good enrichment factors were obtained of 40, 193, 102, 15, and 107 for 4-CP, 2,4,6-TCP, 2,4-DCP, 2-CP, and 2,6-DCP, respectively. Good linearity was attained in the range of 1-200 μg/L for 2,4,6-TCP, 2,4-DCP, 2-300 μg/L for 4-CP and 2-CP, and 1-300 μg/L for 2,6-DCP, with correlation coefficients (r) over 0.99. The LOD (S/N = 3) and the LOQ (S/N = 10) were 0.31-0.75 μg/L and 1.01-2.43 μg/L, respectively. Recoveries ranging from 60.85 to 112.36% were obtained with tap, lake, and river water spiked at three concentration levels and the RSDs (for n = 3) were 1.31-11.38%. With the characteristics of simplicity, cost-saving, and environmental friendliness, the developed DLLME-CE method proved to be potentially applicable for the rapid, sensitive, and simultaneous determination of trace CPs in complicated water samples.
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Affiliation(s)
- Fangfang Gao
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, P. R. China.,CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering Technology of Shandong Province, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, P. R. China
| | - Wenhui Lu
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering Technology of Shandong Province, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, P. R. China
| | - Huitao Liu
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, P. R. China
| | - Jinhua Li
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering Technology of Shandong Province, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, P. R. China
| | - Lingxin Chen
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, P. R. China.,CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering Technology of Shandong Province, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, P. R. China
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23
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Switchable zipper-like thermoresponsive molecularly imprinted polymers for selective recognition and extraction of estradiol. Talanta 2018; 176:187-194. [DOI: 10.1016/j.talanta.2017.08.019] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Revised: 07/30/2017] [Accepted: 08/05/2017] [Indexed: 11/22/2022]
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24
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Asfaram A, Arabi M, Ostovan A, Sadeghi H, Ghaedi M. Simple and selective detection of quercetin in extracts of plants and food samples by dispersive-micro-solid phase extraction based on core–shell magnetic molecularly imprinted polymers. NEW J CHEM 2018. [DOI: 10.1039/c8nj03349h] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In the present study, a D-μ-SPE clean-up method was established for the analysis of quercetin in extracts of plants and food samples using a magnetic molecularly imprinted polymer as the sorbent by HPLC-UV detection.
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Affiliation(s)
- Arash Asfaram
- Medicinal Plants Research Center
- Yasuj University of Medical Sciences
- Yasuj
- Iran
| | - Maryam Arabi
- Chemistry Department
- Yasouj University
- Yasouj 75914-35
- Iran
| | - Abbas Ostovan
- Chemistry Department
- Yasouj University
- Yasouj 75914-35
- Iran
| | - Hossein Sadeghi
- Medicinal Plants Research Center
- Yasuj University of Medical Sciences
- Yasuj
- Iran
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25
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Baeza-Fonte AN, Garcés-Lobo I, Luaces-Alberto MD, Gonçalves LM, Sotomayor MDPT, Valdés-González AC. Determination of Cephalosporins by UHPLC-DAD Using Molecularly Imprinted Polymers. J Chromatogr Sci 2017; 56:187-193. [DOI: 10.1093/chromsci/bmx099] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 11/07/2017] [Indexed: 11/14/2022]
Affiliation(s)
- Alen N Baeza-Fonte
- Universitary Laboratory for Characterization of the Structure of Substances, Institute of Sciences and Technology of Materials, University of Havana, Calle Zapata y G, s/n, 10400 Habana, Cuba
| | - Idenia Garcés-Lobo
- Department of Analytical Chemistry, Faculty of Chemistry, University of Havana, Calle Zapata y G, s/n, 10400 Habana, Cuba
| | - Markel D Luaces-Alberto
- Department of Analytical Chemistry, Faculty of Chemistry, University of Havana, Calle Zapata y G, s/n, 10400 Habana, Cuba
| | - Luís Moreira Gonçalves
- REQUIMTE/LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto (FCUP), Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo (USP), Av. Prof. Lineu Prestes 748, 05508-000 São Paulo, SP, Brazil
| | - Maria D P T Sotomayor
- Instituto de Química, UNESP-Univ Estadual Paulista, Departamento de Química Analítica, Av. Prof. Francisco Degni, 55, Jardim Quitandinha, 14800-900 Araraquara, SP, Brazil
| | - Arístides C Valdés-González
- Universitary Laboratory for Characterization of the Structure of Substances, Institute of Sciences and Technology of Materials, University of Havana, Calle Zapata y G, s/n, 10400 Habana, Cuba
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26
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Wang X, Ye N. Recent advances in metal-organic frameworks and covalent organic frameworks for sample preparation and chromatographic analysis. Electrophoresis 2017; 38:3059-3078. [PMID: 28869768 DOI: 10.1002/elps.201700248] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 08/06/2017] [Accepted: 08/22/2017] [Indexed: 12/13/2022]
Abstract
In the field of analytical chemistry, sample preparation and chromatographic separation are two core procedures. The means by which to improve the sensitivity, selectivity and detection limit of a method have become a topic of great interest. Recently, porous organic frameworks, such as metal-organic frameworks (MOFs) and covalent organic frameworks (COFs), have been widely used in this research area because of their special features, and different methods have been developed. This review summarizes the applications of MOFs and COFs in sample preparation and chromatographic stationary phases. The MOF- or COF-based solid-phase extraction (SPE), solid-phase microextraction (SPME), gas chromatography (GC), high-performance liquid chromatography (HPLC) and capillary electrochromatography (CEC) methods are described. The excellent properties of MOFs and COFs have resulted in intense interest in exploring their performance and mechanisms for sample preparation and chromatographic separation.
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Affiliation(s)
- Xuan Wang
- Department of Chemistry, Capital Normal University, Beijing, P. R. China
| | - Nengsheng Ye
- Department of Chemistry, Capital Normal University, Beijing, P. R. China
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27
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Shi L, Wang J, Feng J, Zhao S, Wang Z, Tao H, Liu S. Determination of chlorophenols in water using dispersive liquid-liquid microextraction coupled with water-in-oil microemulsion electrokinetic chromatography in normal stacking mode. J Sep Sci 2017; 40:2662-2670. [DOI: 10.1002/jssc.201700175] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 04/11/2017] [Accepted: 04/15/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Ludi Shi
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy; Northwest A and F University; Yangling Shaanxi China
| | - Jin Wang
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy; Northwest A and F University; Yangling Shaanxi China
| | - Jing Feng
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy; Northwest A and F University; Yangling Shaanxi China
| | - Sihan Zhao
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy; Northwest A and F University; Yangling Shaanxi China
| | - Zhengmeng Wang
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy; Northwest A and F University; Yangling Shaanxi China
| | - Hu Tao
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy; Northwest A and F University; Yangling Shaanxi China
| | - Shuhui Liu
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy; Northwest A and F University; Yangling Shaanxi China
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28
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Speltini A, Scalabrini A, Maraschi F, Sturini M, Profumo A. Newest applications of molecularly imprinted polymers for extraction of contaminants from environmental and food matrices: A review. Anal Chim Acta 2017; 974:1-26. [PMID: 28535878 DOI: 10.1016/j.aca.2017.04.042] [Citation(s) in RCA: 175] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 04/26/2017] [Accepted: 04/27/2017] [Indexed: 01/12/2023]
Abstract
This paper presents an overview of the recent applications of molecularly imprinted polymers (MIPs) to sample preparation. The review is thought to cover analytical procedures for extraction of contaminants (mainly illegal/noxious organic compounds) from food and environmental matrices, with a particular focus on the various pre-concentration/cleanup techniques, that is offline and online solid-phase extraction (SPE), dispersive SPE (d-SPE), magnetic SPE (MSPE), solid-phase microextraction (SPME) and stir-bar sorptive extraction (SBSE), applied before instrumental quantification. The selectivity and extraction efficiency of MIP-based sorbent phases are critically discussed, also in relation to the physical-chemical properties resulting from the synthetic procedures. A variety of molecularly imprinted sorbents is presented, including hybrid composites embedding carbon nanomaterials and ionic liquids. The analytical performance of MIP materials in sample preparation is commented as function of the complexity of the matrix, and it is compared to that exhibited by (commercial) aspecific and/or immunosorbent phases.
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Affiliation(s)
- Andrea Speltini
- Department of Chemistry, University of Pavia, via Taramelli 12, 27100 Pavia, Italy.
| | - Andrea Scalabrini
- Department of Chemistry, University of Pavia, via Taramelli 12, 27100 Pavia, Italy
| | - Federica Maraschi
- Department of Chemistry, University of Pavia, via Taramelli 12, 27100 Pavia, Italy
| | - Michela Sturini
- Department of Chemistry, University of Pavia, via Taramelli 12, 27100 Pavia, Italy
| | - Antonella Profumo
- Department of Chemistry, University of Pavia, via Taramelli 12, 27100 Pavia, Italy
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29
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Chen X, Ye N. A graphene oxide surface–molecularly imprinted polymer as a dispersive solid-phase extraction adsorbent for the determination of cefadroxil in water samples. RSC Adv 2017. [DOI: 10.1039/c7ra02985c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Graphene oxide–functionalized molecularly imprinted polymer particles have been prepared for specific selective extraction and determination of cefadroxil in environmental water samples.
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Affiliation(s)
- Xinwei Chen
- Department of Chemistry
- Capital Normal University
- Beijing 100048
- P. R. China
| | - Nengsheng Ye
- Department of Chemistry
- Capital Normal University
- Beijing 100048
- P. R. China
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30
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Liquid-Phase Separation Methods for Environmental Analysis. Electrophoresis 2016; 37:2447-2448. [PMID: 27717076 DOI: 10.1002/elps.201670154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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