1
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Sun X, Fu Q, Ren J, Sun-Waterhouse D, Waterhouse GIN, Qiao X. Defective copper-based metal-organic frameworks for the efficient extraction of organosulfur compounds from garlic-processing wastewater. Food Chem 2024; 435:137628. [PMID: 37804731 DOI: 10.1016/j.foodchem.2023.137628] [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: 07/31/2023] [Revised: 09/24/2023] [Accepted: 09/27/2023] [Indexed: 10/09/2023]
Abstract
Organosulfur compounds (OSCs) in garlic-processing wastewater are decomposed and generated to toxic and harmful substances with unpleasant odors under anaerobic conditions. Herein, were report the successful development of novel copper-based metal organic framework (Cu-MOF) adsorbents with high adsorption capacities for OSCs in aqueous media. Defect-rich Cu-MOF-X samples, with particle sizes between 360 and 750 nm, synthesized hydrothermal in the presence of acetic acid (where X denotes the molar ratio of acetic acid relative to the pentadentate MOF linker H4PPYD). OSC adsorption experiments using allicin, ajoene and 2-ethenyl-4H-1,3-dithiine (2-VDT) showed that Cu-MOF-200 delivered fast adsorption kinetics and high OSC adsorption capacities (149.02-171.33 mg g-1) owing to the pore accessibility and range of adsorption sites in the MOF. FT-IR, Raman, and XPS analyses, together with density functional theory (DFT) calculations, verified the strong yet reversible adsorption of OSCs in Cu-MOF-200. Results guide the development of improved adsorbents for OSC capture from garlic-processing wastewater.
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Affiliation(s)
- Xin Sun
- College of Food Science and Engineering, Shandong Agricultural University, Key Laboratory of Food Nutrition and Human Health in Universities of Shandong, Taian 271018, PR China
| | - Quanbin Fu
- College of Food Science and Engineering, Shandong Agricultural University, Key Laboratory of Food Nutrition and Human Health in Universities of Shandong, Taian 271018, PR China
| | - Jun Ren
- School of Chemical Engineering and Technology, Shanxi Key Laboratory of High Performance Battery Materials and Devices, North University of China, Taiyuan 030051, PR China
| | | | | | - Xuguang Qiao
- College of Food Science and Engineering, Shandong Agricultural University, Key Laboratory of Food Nutrition and Human Health in Universities of Shandong, Taian 271018, PR China.
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2
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Jiao H, Bi R, Li F, Chao J, Zhang G, Zhai L, Hu L, Wang Z, Dai C, Li B. Rapid, easy and catalyst-free preparation of magnetic thiourea-based covalent organic frameworks at room temperature for enrichment and speciation of mercury with HPLC-ICP-MS. J Chromatogr A 2024; 1717:464683. [PMID: 38295741 DOI: 10.1016/j.chroma.2024.464683] [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: 11/24/2023] [Revised: 01/14/2024] [Accepted: 01/25/2024] [Indexed: 02/23/2024]
Abstract
The complex and cumbersome preparation of magnetic covalent organic frameworks (COFs) nanocomposites on a small scale limits their application. Herein, a rapid and easy route was employed for the preparation of magnetic thiourea-based COFs nanocomposites. COFs were coated on Fe3O4 nanoparticles at room temperature without a catalyst within approximately 30 min. This method is suitable for the large-scale preparation of magnetic adsorbent. Using the as-prepared magnetic adsorbent (Fe3O4@COF-TpTU), we developed a simple, efficient, and sensitive magnetic solid-phase extraction-high performance liquid chromatography-inductively coupled plasma-mass spectrometry (MSPE-HPLC-ICP-MS) for the enrichment and determination of mercury species, including Hg2+, methylmercury (MeHg), and ethylmercury (EtHg). The effects of the experimental parameters on the extraction efficiency, including solution pH, adsorption and desorption time, composition and volume of the elution solvent, salinity, coexisting ions, and dissolved organic matter, were comprehensively investigated. Under optimised conditions, the limits of detection in the developed method were 0.56, 0.34, and 0.47 ng L-1 with enrichment factors of 190, 195, and 180-fold for Hg2+, MeHg, and EtHg, respectively. The satisfactory spiked recoveries (97.0-103%) in real water samples and high consistency between the certified and determined values in a certified reference material demonstrate the high accuracy and reproducibility of the developed method. The as-proposed method with simple operation, high sensitivity, and excellent anti-matrix interference performance was successfully applied to the enrichment and determination of trace levels of mercury species in the natural samples with complicated matrices, such as underground water, surface water, seawater and biological samples.
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Affiliation(s)
- Heping Jiao
- Shandong Analysis and Tester Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Ruixiang Bi
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Fangli Li
- Shandong Public Health Clinic Center, Jinan 266075, China
| | - Jingbo Chao
- Division of Chemical Metrology and Analytical Science, National Institute of Metrology, Beijing 100029, China
| | - Guimin Zhang
- National Engineering and Technology Research Centre of Chirality Pharmaceutical, Lunan Pharmaceutical Group Co., Ltd., Linyi 276005, China
| | - Lihai Zhai
- National Engineering and Technology Research Centre of Chirality Pharmaceutical, Lunan Pharmaceutical Group Co., Ltd., Linyi 276005, China
| | - Ligang Hu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Zhenhua Wang
- Shandong Analysis and Tester Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China.
| | - Caifeng Dai
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, China.
| | - Bing Li
- Shandong Analysis and Tester Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; Shandong Key Laboratory for Adhesive Materials, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China.
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3
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Dakova I, Yordanova T, Karadjova I. Polymeric Materials in Speciation Analysis Based on Solid-Phase Extraction. Molecules 2023; 29:187. [PMID: 38202769 PMCID: PMC10780835 DOI: 10.3390/molecules29010187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/23/2023] [Accepted: 12/26/2023] [Indexed: 01/12/2024] Open
Abstract
Speciation analysis is a relevant topic since the (eco)toxicity, bioavailability, bio (geo)chemical cycles, and mobility of a given element depend on its chemical forms (oxidation state, organic ligands, etc.). The reliability of analytical results for chemical species of elements depends mostly on the maintaining of their stability during the sample pretreatment step and on the selectivity of further separation step. Solid-phase extraction (SPE) is a matter of choice as the most suitable and widely used procedure for both enrichment of chemical species of elements and their separation. The features of sorbent material are of great importance to ensure extraction efficiency from one side and selectivity from the other side of the SPE procedure. This review presents an update on the application of polymeric materials in solid-phase extraction used in nonchromatographic methods for speciation analysis.
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Affiliation(s)
| | | | - Irina Karadjova
- Faculty of Chemistry and Pharmacy, University of Sofia “St. Kliment Ohridski”, 1, James. Bourchier Blvd.1, 1164 Sofia, Bulgaria; (I.D.); (T.Y.)
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4
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Soylak M, Uzcan F, Goktas O, Gumus ZP. Fe 3O 4-SiO 2-MIL-53 (Fe) nanocomposite for magnetic dispersive micro-solid phase extraction of cadmium (II) at trace levels prior to HR-CS-FAAS detection. Food Chem 2023; 429:136855. [PMID: 37478612 DOI: 10.1016/j.foodchem.2023.136855] [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: 03/09/2023] [Revised: 06/29/2023] [Accepted: 07/09/2023] [Indexed: 07/23/2023]
Abstract
A magnetic metal-organic framework Fe3O4-SiO2-MIL-53 (Fe) nanocomposite was synthesized for magnetic dispersion micro-solid phase extraction (M-d-µSPE) of cadmium in water, spice, chocolate, tea, and tobacco samples prior to the detection by flame atomic absorption spectrometry. Fe3O4-SiO2-MIL-53 (Fe) nanocomposite fabricated using the solvothermal technique was characterized using a field emission scanning electron microscope and X-ray diffraction. The extraction efficiency of the method was improved by optimizing the experimental factors. After optimization, the linearity range for Cd (II) was 4.3-500 µgL-1. The limits of detection and quantification were 1.3 and 4.3 µgL-1, respectively. The presented magnetic dispersion-micro solid phase extraction method was applied to Cd (II) analysis in food and some environmental samples.
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Affiliation(s)
- Mustafa Soylak
- Erciyes University, Faculty of Science, Department of Chemistry, Kayseri, Turkey; Technology Research and Application Center (TAUM), Erciyes University, Kayseri, Turkey; Turkish Academy of Sciences (TUBA), Ankara, Turkey.
| | - Furkan Uzcan
- Erciyes University, Faculty of Science, Department of Chemistry, Kayseri, Turkey; Technology Research and Application Center (TAUM), Erciyes University, Kayseri, Turkey
| | - Oguzhan Goktas
- Erciyes University, Faculty of Science, Department of Chemistry, Kayseri, Turkey; Technology Research and Application Center (TAUM), Erciyes University, Kayseri, Turkey
| | - Zinar Pinar Gumus
- Ege University, Central Research Test and Analysis Laboratory Application and Research Center (EGE-MATAL), İzmir, Turkey
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5
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Chen Y, Zhang Q, Zhang L, Wang Y, Song Y, Li Y, Yin Y, Cai Y. An improved method for rapid and safe preparation and measurement of dimethylmercury using gas chromatography-atomic fluorescence spectrometry. J Chromatogr A 2023; 1712:464472. [PMID: 37924619 DOI: 10.1016/j.chroma.2023.464472] [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: 09/08/2023] [Revised: 10/17/2023] [Accepted: 10/22/2023] [Indexed: 11/06/2023]
Abstract
Transformations between dimethylmercury (DMHg) and other mercury (Hg) species have been one of the critical knowledge gaps in the Hg global biogeochemical cycle due to the lack of detailed studies. The preparation and measurement of DMHg are challenging due to the high toxicity and volatility of DMHg. In this work, we invented a new DMHg generator for successfully preparing high-purity DMHg in a highly controllable and safe way. The DMHg could be spontaneously volatilized and diffused from the original preparation solution to the solution to be studied. The parameters for generating DMHg were optimized to be the pH value of 4.0 with a MeCo/Hg2+ molar ratio of 10 at 20 °C. The following measurement method of DMHg in the presence of various species of Hg was also investigated and optimized. Hg0 and DMHg could be separated effectively with the carrier gas flow rate of 15 mL min-1 and the gas chromatography column temperature of 30 °C. The interferences of Hg0, monomethylmercury and other species were excluded by systematic control experiments. A sensitive and reliable approach for quantifying trace DMHg in water was developed. Under the optimal conditions, the limits of detection for Hg0, MMHg and DMHg were 0.03, 0.002 and 0.024 ng L-1, respectively, with the relative standard deviation below 8.2%. The developed method was validated by the determination Hg species of different natural water samples. This work is expected to provide a new and safe strategy for DMHg preparation and a verified method for DMHg measurement.
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Affiliation(s)
- Yingying Chen
- Shandong Key Laboratory of Environmental Processes and Health, Qingdao Key Laboratory of Marine Pollutant Prevention, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Qingzhe Zhang
- Shandong Key Laboratory of Environmental Processes and Health, Qingdao Key Laboratory of Marine Pollutant Prevention, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China.
| | - Lian Zhang
- Shandong Key Laboratory of Environmental Processes and Health, Qingdao Key Laboratory of Marine Pollutant Prevention, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Yingjun Wang
- Shandong Key Laboratory of Environmental Processes and Health, Qingdao Key Laboratory of Marine Pollutant Prevention, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Yue Song
- Shandong Key Laboratory of Environmental Processes and Health, Qingdao Key Laboratory of Marine Pollutant Prevention, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Yanbin Li
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, and Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China
| | - Yongguang Yin
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yong Cai
- Shandong Key Laboratory of Environmental Processes and Health, Qingdao Key Laboratory of Marine Pollutant Prevention, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China; Department of Chemistry & Biochemistry, Florida International University, Miami, FL 33199, United States.
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6
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Zhao Q, Zhang H, Zhao H, Zhu H, Liu J, Li B, Li M, Yang X. Construction of a Biomimetic Receptor Based on Hydrophilic Multifunctional Monomer Covalent Organic Framework Molecularly Imprinted Polymers for Molecular Recognition of Cyanidin-3- O-Glucoside. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:18024-18036. [PMID: 37939378 DOI: 10.1021/acs.jafc.3c04391] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
Anthocyanins (AOCs) are phenols that are readily soluble in water and are commonly present in plants. The chemical instability of AOC, however, causes it to be severely limited in terms of extraction and purification. Hence, in order to obtain efficient and stable extraction of AOC, we designed hydrophilic multifunctional monomer covalent organic framework molecularly imprinted polymers (HMCMIPs) as adsorbents. The functional reagent, p-aminobenzenesulfonic acid (ASA), was added to this material during synthesis to facilitate the sulfonation modification of covalent organic frameworks (COFs), which enhanced its affinity for hydrophilic guests (cyanidin-3-O-glucoside, the representative nutritional and functional ingredient in AOC). With ASA serving as a terminator, overextension of the material to form micron-level cross-linked structures is prevented, thereby increasing its surface area and mass transfer efficiency. The biomimetic receptors were then created by integrating MIPs into sulfonated COFs in order to create multiple binding sites specific for C3G recognition. HMCMIPs exhibited excellent adsorption capacity (1566 mg/g) and superior selectivity (selectivity coefficient >12) for C3G. It has been demonstrated that high purity (93.72%) C3G can be obtained rapidly and efficiently by utilizing HMCMIPs. There may be a potential benefit to the synthesis strategy of HMCMIPs for the extraction of specific active ingredients in the future.
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Affiliation(s)
- Qianyu Zhao
- School of Medicine and Health, Harbin Institute of Technology, Harbin 150001, China
- Key Laboratory of Dairy Science, Ministry of Education, Department of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Hua Zhang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Haitian Zhao
- School of Medicine and Health, Harbin Institute of Technology, Harbin 150001, China
- Chongqing Research Institute, Harbin Institute of Technology, Chongqing 401135, China
| | - Hongwei Zhu
- School of Medicine and Health, Harbin Institute of Technology, Harbin 150001, China
| | - Jia Liu
- School of Medicine and Health, Harbin Institute of Technology, Harbin 150001, China
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
- Internal Trade Food Science Research Institute Co., Ltd, Beijing 102209, China
| | - Bin Li
- Academician Workstation, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Minjie Li
- Internal Trade Food Science Research Institute Co., Ltd, Beijing 102209, China
- Nutrition & Health Research Institute, COFCO Corporation, Beijing 102209, China
| | - Xin Yang
- School of Medicine and Health, Harbin Institute of Technology, Harbin 150001, China
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
- Chongqing Research Institute, Harbin Institute of Technology, Chongqing 401135, China
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7
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Azadi E, Dinari M. Green and Facile Preparation of Covalent Organic Frameworks Based on Reaction Medium for Advanced Applications. Chemistry 2023; 29:e202301837. [PMID: 37640690 DOI: 10.1002/chem.202301837] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 08/26/2023] [Accepted: 08/28/2023] [Indexed: 08/31/2023]
Abstract
Covalent organic frameworks (COFs), as a new class of crystalline, well-ordered, and porous materials with intermittent constructions, are formed via organic structural parts connected through covalent bonds. These materials have been employed in several fields comprising pollutant adsorption and separation, catalysis, electrical conductivity, gas storage, etc. The preparation of COFs is mainly applied in tubes with high temperatures and degassing treatment. Furthermore, the reaction medium is involved in toxic organic solvents like toluene, dioxane, mesitylene, acetonitrile, and so on. Hence, discovering clean medium and green approaches has attracted wide attention. Recently, facile, less dangerous, and greener methods have been developed for COFs synthesis in diverse applications like performing the reaction at ambient temperature or employing aqueous solvents, ionic liquids, and a mixture of organic solvents/water. This review article summarizes the eco-friendly production approaches of COFs for diverse applications.
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Affiliation(s)
- Elham Azadi
- Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - Mohammad Dinari
- Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111, Iran
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8
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Yang J, Huang L, You J, Yamauchi Y. Magnetic Covalent Organic Framework Composites for Wastewater Remediation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2301044. [PMID: 37156746 DOI: 10.1002/smll.202301044] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 04/03/2023] [Indexed: 05/10/2023]
Abstract
Covalent organic frameworks (COFs) with high specific surface area, tailored structure, easy functionalization, and excellent chemical stability have been extensively exploited as fantastic materials in various fields. However, in most cases, COFs prepared in powder form suffer from the disadvantages of tedious operation, strong tendency to agglomerate, and poor recyclability, greatly limiting their practical application in environmental remediation. To tackle these issues, the fabrication of magnetic COFs (MCOFs) has attracted tremendous attention. In this review, several reliable strategies for the fabrication of MCOFs are summarized. In addition, the recent application of MCOFs as outstanding adsorbents for the removal of contaminants including toxic metal ions, dyes, pharmaceuticals and personal care products, and other organic pollutants is discussed. Moreover, in-depth discussions regarding the structural parameters affecting the practical potential of MCOFs are highlighted in detail. Finally, the current challenges and future prospects of MCOFs in this field are provided with the expectation to boost their practical application.
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Affiliation(s)
- Juan Yang
- Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Lab of Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, LiuFang Campus, No. 206, Donghu New & High Technology Development Zone Wuhan, Guanggu 1st Road, Wuhan, Hubei, 430205, P. R. China
| | - Lijin Huang
- State Key Laboratory of Biogeology and Environmental Geology, Faculty of Materials Science and Chemistry, China University of Geosciences, No. 388 Lumo Road, Hongshan District, Wuhan, 430074, P. R. China
| | - Jungmok You
- Department of Plant & Environmental New Resources, College of Life Sciences, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do, 17104, South Korea
| | - Yusuke Yamauchi
- Department of Plant & Environmental New Resources, College of Life Sciences, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do, 17104, South Korea
- School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD 4072, Australia
- Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8603, Japan
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9
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GAO Y, DING Y, CHEN L, DU F, XIN X, FENG J, SUN M, FENG Y, SUN M. [Recent application advances of covalent organic frameworks for solid-phase extraction]. Se Pu 2023; 41:545-553. [PMID: 37387275 PMCID: PMC10311619 DOI: 10.3724/sp.j.1123.2022.12021] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Indexed: 07/01/2023] Open
Abstract
Covalent organic frameworks (COFs) are a type of crystalline porous polymers. It firstly prepared by thermodynamically controlled reversible polymerization to obtain chain units and connecting small organic molecular building units with a certain symmetry. These polymers are widely used in gas adsorption, catalysis, sensing, drug delivery, and many other fields. Solid-phase extraction (SPE) is a fast and simple sample pretreatment technology that can enrich analytes and improve the accuracy and sensitivity of analysis and detection; it is extensively employed in food safety detection, environmental pollutant analysis, and several other fields. How to improve the sensitivity, selectivity, and detection limit of the method during sample pretreatment have become a topic of great interest. COFs have recently been applied to sample pretreatment owing to their low skeleton density, large specific surface area, high porosity, good stability, facile design and modification, simple synthesis, and high selectivity. At present, COFs have also attracted extensive attention as new extraction materials in the field of SPE. These materials have been applied to the extraction and enrichment of diverse types of pollutants in food, environmental, and biological samples, such as heavy metal ions, polycyclic aromatic hydrocarbons, phenol, chlorophenol, chlorobenzene, polybrominated diphenyl ethers, estrogen, drug residues, pesticide residues, etc. COFs can be synthesized from different materials and exert different effects on different extracts. New types of COFs can also be synthesized via modification to achieve better extraction effects. In this work, the main types and synthesis methods of COFs are introduced, and the most important applications of COFs in the fields of food, environment and biology in recent years are highlighted. The development prospects of COFs in the field of SPE are also discussed.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Min SUN
- Tel:(0531)82765475,E-mail:(孙敏)
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10
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A novel modified magnetic Co-MOF-71 for magnetic solid phase extraction of Hg(II) ions in food samples. RESEARCH ON CHEMICAL INTERMEDIATES 2023. [DOI: 10.1007/s11164-023-04976-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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11
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Favilli L, Giacomino A, Malandrino M, Inaudi P, Diana A, Abollino O. Strategies for mercury speciation with single and multi-element approaches by HPLC-ICP-MS. Front Chem 2022; 10:1082956. [PMID: 36531326 PMCID: PMC9754325 DOI: 10.3389/fchem.2022.1082956] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 11/18/2022] [Indexed: 08/21/2023] Open
Abstract
Mercury (Hg) and its compounds are highly toxic for humans and ecosystems, and their chemical forms determine both their behavior and transportation as well as their potential toxicity for human beings. Determining the various species of an element is therefore more crucial than understanding its overall concentration in samples. For this reason, several studies focus on the development of new analytical techniques for the identification, characterization, and quantification of Hg compounds. Commercially available, hyphenated technology, such as HPLC-ICP-MS, supports the rapid growth of speciation analysis. This review aims to summarize and critically examine different approaches for the quantification of mercury species in different samples using HPLC-ICP-MS. The steps preceding the quantification of the analyte, namely sampling and pretreatment, will also be addressed. The scenarios evaluated comprehend single and multi-element speciation analysis to create a complete guide about mercury content quantification.
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Affiliation(s)
- Laura Favilli
- Department of Drug Science and Technology, University of Torino, Turin, Italy
| | - Agnese Giacomino
- Department of Drug Science and Technology, University of Torino, Turin, Italy
| | - Mery Malandrino
- Department of Chemistry, University of Torino, Torino, Italy
| | - Paolo Inaudi
- Department of Drug Science and Technology, University of Torino, Turin, Italy
| | - Aleandro Diana
- Department of Chemistry, University of Torino, Torino, Italy
| | - Ornella Abollino
- Department of Drug Science and Technology, University of Torino, Turin, Italy
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12
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Hassan B, Hadi H. Magnetic solid-phase extraction based on benzalkonium chloride-coated Fe3O4@SiO2 nanoparticles for spectrophotometric determination of ritodrine hydrochloride and salbutamol sulfate in water and urine samples. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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13
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A critical review of covalent organic frameworks-based sorbents in extraction methods. Anal Chim Acta 2022; 1224:340207. [DOI: 10.1016/j.aca.2022.340207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 07/24/2022] [Accepted: 07/25/2022] [Indexed: 12/15/2022]
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14
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Liu J, Su Z, Xu Q, Shi Y, Wu D, Li L, Wu Y, Li G. Facile synthesis of boric acid-functionalized magnetic covalent organic frameworks and application to magnetic solid-phase extraction of trace endocrine disrupting compounds from meat samples. Food Chem 2022; 399:133843. [DOI: 10.1016/j.foodchem.2022.133843] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 07/24/2022] [Accepted: 07/31/2022] [Indexed: 12/07/2022]
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15
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Bagheri AR, Aramesh N, Liu Z, Chen C, Shen W, Tang S. Recent Advances in the Application of Covalent Organic Frameworks in Extraction: A Review. Crit Rev Anal Chem 2022; 54:565-598. [PMID: 35757859 DOI: 10.1080/10408347.2022.2089838] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Covalent organic frameworks (COFs) are a class of emerging materials that are synthesized based on the covalent bonds between different building blocks. COFs possess unique attributes in terms of high porosity, tunable structure, ordered channels, easy modification, large surface area, and great physical and chemical stability. Due to these features, COFs have been extensively applied as adsorbents in various extraction modes. Enhanced extraction performance could be reached with modified COFs, where COFs are presented as composites with other materials including nanomaterials, carbon and its derivatives, silica, metal-organic frameworks, molecularly imprinted polymers, etc. This review article describes the recent advances, developments, and applications of COF-based materials being utilized as adsorbents in the extraction methods. The COFs, their properties, their synthesis approaches as well as their composite structures are reviewed. Most importantly, suggested mechanisms for the extraction of analyte(s) by COF-based materials are also discussed. Finally, the current challenges and future prospects of COF-based materials in extraction methods are summarized and considered in order to provide more insights into this field.
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Affiliation(s)
| | - Nahal Aramesh
- Department of Chemistry, University of Isfahan, Isfahan, Iran
| | - Zhiqiang Liu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu Province, China
| | - Chengbo Chen
- Department of Medicinal Chemistry, University of Washington, Seattle, WA, USA
| | - Wei Shen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu Province, China
| | - Sheng Tang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu Province, China
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16
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Song L, Li H, Li T, Xu J, Chen H. Sequential Speciation Analysis of Heavy Metals in Drinking Water Pipe Scales by Mass Spectrometry. Chem Res Chin Univ 2022. [DOI: 10.1007/s40242-022-2131-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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He M, Liang Q, Tang L, Liu Z, Shao B, He Q, Wu T, Luo S, Pan Y, Zhao C, Niu C, Hu Y. Advances of covalent organic frameworks based on magnetism: Classification, synthesis, properties, applications. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214219] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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18
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Tian X, Dai Y, Cheng Y, Zhang L, Kong RM, Xia L, Kong C, Li G. Combination of pipette tip solid phase extraction and high performance liquid chromatography for determination of plant growth regulators in food samples based on the electrospun covalent organic framework/polyacrylonitrile nanofiber as highly efficient sorbent. J Chromatogr A 2021; 1661:462692. [PMID: 34883355 DOI: 10.1016/j.chroma.2021.462692] [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: 09/01/2021] [Revised: 10/27/2021] [Accepted: 11/16/2021] [Indexed: 12/20/2022]
Abstract
Facile and sensitive determination of plant growth regulators (PGRs) in food samples is important but still remains great challenge. Herein, a pipette tip solid phase extraction (PT-SPE) method was developed for fast and sensitively detecting PGRs. The PT-SPE adsorbent was prepared by integrating a novel covalent organic framework (COF) of schiff base network 3 (SNW-3) and polyacrylonitrile (PAN) through electrospinning. The SNW-3 can easily adsorb PGRs with high special affinity through electrovalent bands between the ammonium ions of SNW-3 and the carboxy groups of PGRs. The polymer of PAN acts as scaffold material for SNW-3, which can lower seepage pressure hence accelerates adsorption/desorption kinetics. By combination with HPLC-DAD, a satisfactory method was successfully developed for simultaneous determination of ten PGRs in watermelon. Good analytical performances were achieved with this proposed method, including good linearity (5-500 ng/mL) with high correlation coefficients (R ≥ 0.9981), low limits of detection (S/N = 3, 0.24-3.19 ng/mL) and limits of quantification (S/N = 10, 1.65-5.72 ng/mL), satisfactory precision (intra-day RSDs ≤ 2.7%, inter-day RSDs ≤ 3.7%), and high accuracy (recovery: 82.8-113.0%). The method developed in this study shows high potential for design of high target-affinity adsorbents for food sample preparing.
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Affiliation(s)
- Xiaoxia Tian
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, PR China
| | - Yue Dai
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, PR China
| | - Yuanyuan Cheng
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, PR China
| | - Lingdong Zhang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, PR China
| | - Rong-Mei Kong
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, PR China
| | - Lian Xia
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, PR China.
| | - Cong Kong
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, PR China.
| | - Guoliang Li
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an 710021, PR China
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19
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Li C, Yu G. Controllable Synthesis and Performance Modulation of 2D Covalent-Organic Frameworks. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2100918. [PMID: 34288393 DOI: 10.1002/smll.202100918] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 03/29/2021] [Indexed: 06/13/2023]
Abstract
Covalent-organic frameworks (COFs) are especially interesting and unique as their highly ordered topological structures entirely built from plentiful π-conjugated units through covalent bonds. Arranging tailorable organic building blocks into periodically reticular skeleton bestows predictable lattices and various properties upon COFs in respect of topology diagrams, pore size, properties of channel wall interfaces, etc. Indeed, these peculiar features in terms of crystallinity, conjugation degree, and topology diagrams fundamentally decide the applications of COFs including heterogeneous catalysis, energy conversion, proton conduction, light emission, and optoelectronic devices. Additionally, this research field has attracted widespread attention and is of importance with a major breakthrough in recent year. However, this research field is running with the lack of summaries about tailorable construction of 2D COFs for targeted functionalities. This review first covers some crucial polymeric strategies of preparing COFs, containing boron ester condensation, amine-aldehyde condensation, Knoevenagel condensation, trimerization reaction, Suzuki CC coupling reaction, and hybrid polycondensation. Subsequently, a summary is made of some representative building blocks, and then underlines how the electronic and molecular structures of building blocks can strongly influence the functional performance of COFs. Finally, conclusion and perspectives on 2D COFs for further study are proposed.
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Affiliation(s)
- Chenyu Li
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Gui Yu
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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20
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Yang L, Wei F, Liu JM, Wang S. Functional Hybrid Micro/Nanoentities Promote Agro-Food Safety Inspection. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:12402-12417. [PMID: 34662114 DOI: 10.1021/acs.jafc.1c05185] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The rapid development of nanomaterials has provided a good theoretical basis and technical support to solve the problems of food safety inspection. The combination of functionalized composite nanomaterials and well-known detection methods is gradually applied to detect hazardous substances, such as chemical residues and toxins, in agricultural food products. This review concentrates on the latest agro-food safety inspection techniques and methodologies constructed with the assistance of new hybrid micro/nanoentities, such as molecular imprinting polymers integrated with quantum dots (MIPs@QDs), molecular imprinting polymers integrated with upconversion luminescent nanoparticles (MIPs@UCNPs), upconversion luminescent nanoparticles combined with metal-organic frameworks (UCNPs@MOFs), magnetic metal-organic frameworks (MOFs@Fe3O4), magnetic covalent-organic frameworks (Fe3O4@COFs), covalent-organic frameworks doped with quantum dots (COFs@QDs), nanobody-involved immunoassay for fast inspection, etc. The presented summary and discussion favor a relevant outlook for further integrating various disciplines, like material science, nanotechnology, and analytical methodology, for addressing new challenges that emerge in agro-food research fields.
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Affiliation(s)
- Lu Yang
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
| | - Fan Wei
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
| | - Jing-Min Liu
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
| | - Shuo Wang
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
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21
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Zhou DB, Xiao YB, Han F, Lv YN, Ding L, Song W, Liu YX, Zheng P, Chen D. Magnetic solid-phase extraction based on sulfur-functionalized magnetic metal-organic frameworks for the determination of methylmercury and inorganic mercury in water and fish samples. J Chromatogr A 2021; 1654:462465. [PMID: 34416446 DOI: 10.1016/j.chroma.2021.462465] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 07/28/2021] [Accepted: 08/07/2021] [Indexed: 11/15/2022]
Abstract
A novel magnetic metal-organic frameworks (Fe3O4@UiO-66-SH) was successfully prepared by coating Fe3O4 nanospheres with sulfur-functionalized UiO-66. The Fe3O4@UiO-66-SH possesses both the magnetic properties of Fe3O4 and the diverse properties of metal-organic framework (MOF) in one material, which has the superiority of high surface area, easy-operation and strong adsorb ability with mercury, is used for the magnetic solid-phase extraction of methylmercury (MeHg+) and inorganic mercury (Hg2+) in water and fish samples. The analyzes were conducted by high performance liquid chromatography-inductively coupled plasma mass spectrometry (HPLC-ICP-MS). The different pretreatment conditions influencing the extraction recoveries of Hg2+ and MeHg+, including adsorbent amount, pH, extraction time, elution solvent, elution volume, desorption time, co-existing ions and dissolved organic materials were investigated. Under the optimized conditions, the limits of detection (LODs) of Hg2+ and MeHg+ for water samples were 1.4 and 2.6 ng L-1, and the limits of quantification (LOQs) of Hg2+ and MeHg+ for water samples were 4.7 and 8.7 ng L-1. The enrichment factors (EFs) were 45.7 and 47.6 fold for Hg2+ and MeHg+, respectively. The accuracy of the proposed method was demonstrated by analyzing the certified reference material of fish tissue (GBW10029) and by determining the analyte content in spiked water and fish samples. The determined values were in good agreement with the certified values and the recoveries for the spiked samples were in the range of 84.5-96.8%.
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Affiliation(s)
- Dian-Bing Zhou
- Technology Center of Hefei Customs, and Anhui Province Key Laboratory of Analysis and Detection for Food Safety, Hefei, Anhui 230022, PR China.
| | - Ya-Bing Xiao
- Animal, Plant and Foodstuffs Inspection Center of Tianjin Customs, Tianjin 300461, PR China; School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, PR China
| | - Fang Han
- Technology Center of Hefei Customs, and Anhui Province Key Laboratory of Analysis and Detection for Food Safety, Hefei, Anhui 230022, PR China
| | - Ya-Ning Lv
- Technology Center of Hefei Customs, and Anhui Province Key Laboratory of Analysis and Detection for Food Safety, Hefei, Anhui 230022, PR China
| | - Lei Ding
- Technology Center of Hefei Customs, and Anhui Province Key Laboratory of Analysis and Detection for Food Safety, Hefei, Anhui 230022, PR China
| | - Wei Song
- Technology Center of Hefei Customs, and Anhui Province Key Laboratory of Analysis and Detection for Food Safety, Hefei, Anhui 230022, PR China
| | - Yu-Xin Liu
- Technology Center of Hefei Customs, and Anhui Province Key Laboratory of Analysis and Detection for Food Safety, Hefei, Anhui 230022, PR China
| | - Ping Zheng
- Technology Center of Hefei Customs, and Anhui Province Key Laboratory of Analysis and Detection for Food Safety, Hefei, Anhui 230022, PR China
| | - Da Chen
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, PR China.
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22
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FENG J, JI X, LI C, SUN M, HAN S, FENG J, SUN H, FENG Y, SUN M. [Recent advance of new sample preparation materials in the analysis and detection of environmental pollutants]. Se Pu 2021; 39:781-801. [PMID: 34212580 PMCID: PMC9404022 DOI: 10.3724/sp.j.1123.2021.02030] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Indexed: 11/25/2022] Open
Abstract
To successfully analyze complex samples and detect trace targets, sample pretreatment is essential. Efficient sample pretreatment techniques can remove or reduce interference from the sample matrix. It can also enrich analytes, thereby improving analytical accuracy and sensitivity. In recent years, various sample preparation techniques, including SPE, magnetic dispersion SPE, pipette tip SPE, stir bar extraction, fiber SPME, and in-tube SPME, have received increasing attention in environmental analysis and monitoring. The extraction efficiency mainly depends on the type of adsorbent material. Therefore, the development of efficient adsorbents is a crucial step toward sample preparation. This review summarizes and discusses the research advances in extraction materials over recent years. These extraction materials contain inorganic adsorbents, organic adsorbents, and inorganic-organic hybrid materials such as graphene, graphene oxide, carbon nanotubes, inorganic aerogels, organic aerogels, triazinyl-functionalized materials, triazine-based polymers, molecularly imprinted polymers, covalent organic frameworks, metal-organic frameworks, and their derivatives. These materials have been applied to extract different types of pollutants, including metal ions, polycyclic aromatic hydrocarbons, plasticizers, alkanes, phenols, chlorophenols, chlorobenzenes, polybrominated diphenyl ethers, perfluorosulfonic acids, perfluorocarboxylic acids, estrogens, drug residues, and pesticide residues, from environmental samples (such as water and soil samples). These sample preparation materials possess high surface areas, numerous adsorption sites, and allow extraction via various mechanisms, such as π-π, electrostatic, hydrophobic, and hydrophilic interactions, as well as hydrogen and halogen bond formation. Various sample pretreatment techniques based on these extraction materials have been combined with various detection methods, including chromatography, mass spectrometry, atomic absorption spectroscopy, fluorescence spectroscopy, and ion mobility spectroscopy, and have been extensively used for the determination of environmental pollutants. The existing challenges associated with the development of sample preparation techniques are proposed, and prospects for such extraction materials in environmental analysis and monitoring are discussed. Major trends in the field, including the development of efficient extraction materials with high enrichment ability, good selectivity, excellent thermal stability, and chemical stability, are discussed. Green sample pretreatment materials, environmentally friendly synthesis methods, and green sample pretreatment methods are also explored. Rapid sample pretreatment methods that can be conducted within minutes or seconds are of significant interest. Further, online sample pretreatment and automatic analysis methods have attracted increasing attention. Besides, real-time analysis and in situ detection have been important development directions, and are expected to be widely applicable in environmental analysis, biological detection, and other fields. Modern synthesis technology should be introduced to synthesize specific extraction materials. Controllable preparation methods for extraction materials, such as the in situ growth or in situ preparation of extraction coatings, will acquire importance in coming years. It will also be important to adopt high-performance materials from other fields for sample pretreatment. Organic-inorganic hybrid extraction materials can combine the advantages both organic materials and inorganic materials, and mutually compensate for any disadvantages. Extraction materials doped with nanomaterials are also promising. Although existing sample pretreatment techniques are relatively efficient, it is still imperative to develop novel sample preparation methods.
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Affiliation(s)
- Juanjuan FENG
- 济南大学化学化工学院, 山东 济南 250022
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Xiangping JI
- 济南大学化学化工学院, 山东 济南 250022
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Chunying LI
- 济南大学化学化工学院, 山东 济南 250022
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Mingxia SUN
- 济南大学化学化工学院, 山东 济南 250022
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Sen HAN
- 济南大学化学化工学院, 山东 济南 250022
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Jiaqing FENG
- 济南大学化学化工学院, 山东 济南 250022
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Haili SUN
- 济南大学化学化工学院, 山东 济南 250022
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Yang FENG
- 济南大学化学化工学院, 山东 济南 250022
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Min SUN
- 济南大学化学化工学院, 山东 济南 250022
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
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23
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Mudhoo A, Sillanpää M. Magnetic nanoadsorbents for micropollutant removal in real water treatment: a review. ENVIRONMENTAL CHEMISTRY LETTERS 2021; 19:4393-4413. [PMID: 34341658 PMCID: PMC8320315 DOI: 10.1007/s10311-021-01289-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 07/18/2021] [Indexed: 05/24/2023]
Abstract
Pure water will become a golden resource in the context of the rising pollution, climate change and the recycling economy, calling for advanced purification methods such as the use of nanostructured adsorbents. However, coming up with an ideal nanoadsorbent for micropollutant removal is a real challenge because nanoadsorbents, which demonstrate very good performances at laboratory scale, do not necessarily have suitable properties in in full-scale water purification and wastewater treatment systems. Here, magnetic nanoadsorbents appear promising because they can be easily separated from the slurry phase into a denser sludge phase by applying a magnetic field. Yet, there are only few examples of large-scale use of magnetic adsorbents for water purification and wastewater treatment. Here, we review magnetic nanoadsorbents for the removal of micropollutants, and we explain the integration of magnetic separation in the existing treatment plants. We found that the use of magnetic nanoadsorbents is an effective option in water treatment, but lacks maturity in full-scale water treatment facilities. The concentrations of magnetic nanoadsorbents in final effluents can be controlled by using magnetic separation, thus minimizing the ecotoxicicological impact. Academia and the water industry should better collaborate to integrate magnetic separation in full-scale water purification and wastewater treatment plants.
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Affiliation(s)
- Ackmez Mudhoo
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Mauritius, Réduit, 80837 Mauritius
| | - Mika Sillanpää
- Environmental Engineering and Management Research Group, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Vietnam
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24
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Xie M, Hao X, Jiang X, Liu W, Liu T, Zheng H, Wang M. Ultrasound-assisted dual-cloud point extraction with high-performance liquid chromatography-hydride generation atomic fluorescence spectrometry for mercury speciation analysis in environmental water and soil samples. J Sep Sci 2021; 44:2457-2464. [PMID: 33857354 DOI: 10.1002/jssc.202100088] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 04/09/2021] [Accepted: 04/12/2021] [Indexed: 11/10/2022]
Abstract
A method for simultaneous preconcentration and determination of mercury species in water and soil samples was established using high-performance liquid chromatography with hydride generation atomic fluorescence spectrometry after ultrasound-assisted dual-cloud point extraction. The extraction process was divided into two steps. In the first cloud point extraction, inorganic mercury and methylmercury formed chelates with sodium diethyldithiocarbamate and were extracted into Triton X-114 micelles. In the second stage, a displacement reaction between sodium diethyldithiocarbamate-inorganic mercury/methylmercury and l-cysteine occurred, and the analytes entered the l-cysteine aqueous solution under ultrasonication. This aqueous solution was directly introduced to the high-performance liquid chromatography with hydride generation atomic fluorescence spectrometry and the detection was completed within 6 min. Under the optimum experimental conditions, the linear range was 0.10-5.0 μg/L (r ≥0.9993) for inorganic mercury and methylmercury, and the enhancement factors were 15.7 for inorganic mercury and 6.35 for methylmercury. The limits of detection for inorganic mercury and methylmercury were 0.004 and 0.016 μg/L, respectively. The approach was successfully applied to the determination of trace inorganic mercury and methylmercury in water and soil samples with good recoveries (85.3-110%). This method solved the problem of peak fusion of the two analytes and was successfully applied to the speciation analysis of mercury.
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Affiliation(s)
- Meiyi Xie
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou, P.R. China
| | - Xiaotang Hao
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou, P.R. China
| | - Xun Jiang
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou, P.R. China
| | - Weiting Liu
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou, P.R. China
| | - Tiantian Liu
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou, P.R. China
| | - Han Zheng
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou, P.R. China
| | - Mei Wang
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou, P.R. China
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25
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Sun Q, Ma W, Dan O, Li G, Yang Y, Yan X, Su H, Lin Z, Cai Z. Thiol functionalized covalent organic framework for highly selective enrichment and detection of mercury by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. Analyst 2021; 146:2991-2997. [PMID: 33949450 DOI: 10.1039/d1an00282a] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A spherical thiol-functionalized covalent organic framework (COF-SH) was designed via a facile thiol-yne click reaction of a alkynyl-terminated COF and pentaerythritol tetra(3-mercaptopropionate). The COF-SH was explored as a new adsorbent for the selective enrichment of Hg2+. The as-prepared COF-SH exhibited a uniform mesoporous structure, a high abundance of binding sites, and good chemical stability, which endow it with great performance for the adsorption of Hg2+ and its corresponding maximum adsorption capacity was up to 617.3 mg g-1. Furthermore, the adsorption behavior of Hg2+ on the COF-SH wasin good agreement with the Langmuir and pseudo-second-order models. The influences of adsorbent dosage, pH, selectivity, and reusability of the COF-SH on Hg2+ adsorption were also investigated. Besides this, the COF-SH showed high selectivity towards Hg2+ even in the presence of a high concentration of K+, Na+, Ca2+, Mg2+ and Zn2+ metal ions. Using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS), the corresponding limit of detection (LOD) of Hg2+ was determined at very low concentrations of 80 pg mL-1 (equal to 396 amoL μL-1). In addition, the COF-SH was successfully applied to rapidly enrich and sensitively detect Hg2+ in industrial sewage, with recoveries in the range of 101.8-103.4%, demonstrating the promising potential of COF-SH as an effective adsorbent for use in environmental sample pretreatment.
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Affiliation(s)
- Qianqian Sun
- Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China.
| | - Wende Ma
- Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China.
| | - Ouyang Dan
- Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China.
| | - Guorong Li
- Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China.
| | - Yixin Yang
- Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China.
| | - Xi Yan
- Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China.
| | - Hang Su
- Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China.
| | - Zian Lin
- Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China.
| | - Zongwei Cai
- Partner State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, 224 Waterloo Road, Kowloon Tong, Hong Kong, SAR, P. R. China
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26
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Song Y, Ma Q, Cheng H, Liu J, Wang Y. Simultaneous enrichment of inorganic and organic species of lead and mercury in pg L -1 levels by solid phase extraction online combined with high performance liquid chromatography and inductively coupled plasma mass spectrometry. Anal Chim Acta 2021; 1157:338388. [PMID: 33832592 DOI: 10.1016/j.aca.2021.338388] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 02/24/2021] [Accepted: 03/10/2021] [Indexed: 12/28/2022]
Abstract
Quantification of ultra-trace inorganic and organic species of lead and mercury in unpolluted environmental water is crucial to estimate the mobility, toxicity and bioavailability and interactions. Simultaneous pre-concentration of Pb and Hg species in pg L-1 levels followed by multi-elemental speciation analysis makes great sense to a large set of unstable samples because of time advantages. Herein simultaneous enrichment and speciation analysis of ultra-trace lead and mercury in water was developed by online solid-phase extraction coupled with high performance liquid chromatography and inductively coupled plasma mass spectrometry (SPE-HPLC-ICP-MS) for this aim. Pb(II), trimethyl lead (TML), triethyl lead (TEL), Hg(II), methylmercury (MeHg) and ethylmercury (EtHg) were baseline separated in 11 min under gradient elution using 5 mM l-cysteine (Cys) at pH 2.5 in the 0-1 and 4-15 min and 5 mM Cys + 0.5 mM tetrabutyl ammonium hydroxide solution at pH 2.5 in the 1-4 min. Lead and mercury species in 10 mL intact water samples were adsorbed on a 1 cm C18 enrichment column pre-conditioned with 10 mL of 1 mM 2-mercaptoethanol at 10 mL min-1, and then directly desorbed by the mobile phases. High enrichment factors (459 for Pb(II), 1248 for TML, 1627 for TEL, 2485 for Hg(II), 1984 for MeHg and 1866 for EtHg) were obtained with good relative standard deviations (<5%), leading to low LODs (0.001-0.011 ng L-1) and LOQs (0.004-0.036 ng L-1). Good accuracy of this method was validated by two certified reference materials of total lead in water (GBW08601) and total mercury in water (GBW08603) along with spiked recoveries (89-93%). The method was applied to analyze trace lead and mercury species in river, lake, tap and rain water, and purified and mineral water. Inorganic lead of 13-68 ng L-1 and inorganic mercury of 21-49 ng L-1 were measured in the nine water samples whereas TML, TEL and MeHg were not detected with 2-5 ng L-1 EtHg presented only in one river water and tap water.
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Affiliation(s)
- Yihuan Song
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, China
| | - Qingfang Ma
- Key Laboratory of Organosilicon Chemistry and Material Technology, Hangzhou Normal University, Hangzhou, 311121, China
| | - Heyong Cheng
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, China; Key Laboratory of Organosilicon Chemistry and Material Technology, Hangzhou Normal University, Hangzhou, 311121, China.
| | - Jinhua Liu
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, China; Hangzhou Normal University, Qianjiang College, Hangzhou, 310036, China
| | - Yuanchao Wang
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, China; Key Laboratory of Organosilicon Chemistry and Material Technology, Hangzhou Normal University, Hangzhou, 311121, China.
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