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Pamık DT, Bozkurt SS, Büyükkamacı N. An ultrasound assisted dispersive micro solid-phase extraction and a composite ionic liquid-metal organic framework for sixteen polycyclic aromatic hydrocarbons analysis in fruit juice and environmental water samples. J Chromatogr A 2024; 1733:465259. [PMID: 39178659 DOI: 10.1016/j.chroma.2024.465259] [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: 02/16/2024] [Revised: 07/30/2024] [Accepted: 08/10/2024] [Indexed: 08/26/2024]
Abstract
Aluminum-based metal organic framework composite containing ionic liquid was prepared and used as sorbent for extraction of sixteen polycyclic aromatic hydrocarbons in list of priority pollutants of United States Environmental Protection Agency before their analysis by gas chromatography/mass spectrometry. The dispersive micro solid-phase extraction method, known as a simple and fast method, was preferred as the extraction method. The optimized parameter conditions were 5 mL of sample solution, 10 min sonication by ultrasonic bath, 30 mg of sorbent, 30 °C extraction temperature, 0.1 mL of hexane as elution solvent with 5 min elution time. The suggested method presented that limit of detection and limit of quantification were in the range of 0.01-0.10 μg l-1, and 0.04-0.33 μg L-1, respectively. The intra-day and inter-day repeatability were within the ranges of 1.18-4.88 % and 1.02-5.06 %, respectively. The recoveries for polycyclic aromatic hydrocarbons in peach juice, cherry juice, tap water and rain water samples were obtained in the range of 84.9-99.9 % for spiked 5, 50 and 100 μg l-1 standard polycyclic aromatic hydrocarbons solution.
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Affiliation(s)
- Duygu Totur Pamık
- The Graduate School of Natural and Applied Science, Dokuz Eylul University, Tınaztepe Campus, Izmir 35390, Turkey
| | - Serap Seyhan Bozkurt
- Faculty of Science, Chemistry Department, Dokuz Eylul University, Tınaztepe Campus, Izmir 35390, Turkey.
| | - Nurdan Büyükkamacı
- Engineering Faculty, Department of Environmental Engineering, Dokuz Eylul University, Tınaztepe Campus, Izmir 35390, Turkey
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Synergistic Effects of 1-Octyl-3-Methylimidazolium Hexafluorophosphate and Cellulose Nanocrystals on Improving Polyacrylate Waterborne Anti-Corrosion Coatings. Polymers (Basel) 2023; 15:polym15040810. [PMID: 36850094 PMCID: PMC9967146 DOI: 10.3390/polym15040810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 02/01/2023] [Accepted: 02/02/2023] [Indexed: 02/08/2023] Open
Abstract
In this study, three copolymers of poly(methyl methacrylate) and poly(butyl acrylate) (PMMA-co-PBA) latex containing 1-octyl-3 methylimidazolium hexafluorophosphate (C8mimPF6), cellulose nanocrystals (CNCs), and C8mimPF6-CNCs were successfully synthesized through mini emulsion polymerization. These novel composites were each coated on mild steel panels and tested for their anti-corrosion performance by immersion of the coated samples in 3.5 wt% sodium chloride (NaCl) solution over a certain period. The synergistic anti-corrosion effects of the C8mimPF6-CNCs sample led to the highest coating resistance, charge transfer resistance, and corrosion inhibition efficiency and the lowest diffusion coefficient and corrosion rate. The proposed synergistic mechanism revealed that CNCs enhanced the barrier effect of the coating while C8mimPF6 inhibited corrosion when released.
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Gu YX, Yan TC, Yue ZX, Liu FM, Cao J, Ye LH. Recent developments and applications in the microextraction and separation technology of harmful substances in a complex matrix. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107241] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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4
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Wang Z, Hu B, Chen GZ. The role of 1-octyl-3-methylimidazolium hexafluorophosphate in anticorrosion coating formula development. JOURNAL OF SAUDI CHEMICAL SOCIETY 2022. [DOI: 10.1016/j.jscs.2022.101446] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Gu YX, Yan TC, Yue ZX, Li MH, Zheng H, Wang SL, Cao J. Dispersive Micro-solid-Phase Extraction of Acaricides from Fruit Juice and Functional Food Using Cucurbituril as Sorbent. FOOD ANAL METHOD 2022. [DOI: 10.1007/s12161-021-02209-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Mokhodoeva OB, Maksimova VV, Dzhenloda RK, Shkinev VM. Magnetic Nanoparticles Modified by Ionic Liquids in Environmental Analysis. JOURNAL OF ANALYTICAL CHEMISTRY 2021. [DOI: 10.1134/s1061934821060058] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Liu Y, Luo X, Wang M, Xia Z, Huang Y. Microorganisms as Bio-SPE Materials for Extraction of Pharmaceutical Drugs: Mechanism of Extraction. Anal Chem 2021; 93:7665-7672. [PMID: 34004111 DOI: 10.1021/acs.analchem.1c00521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In solid-phase extraction (SPE), the extraction materials depend on the physicochemical interactions to obtain the target analytes from complex systems. However, many matrix interferences existing in real samples influence the extraction efficiency through these common interactions. Therefore, extraction materials based on more special interactions for biological systems need to be developed. In this work, live microorganisms including Escherichia coli and Staphylococcus aureus were considered as the potential biological SPE (bio-SPE) materials with their biological functions in the live state. To study the enrichment and selectivity of the bio-SPE, four antibacterial drugs and two non-antibacterial drugs were employed as the target analytes. The enrichment factor (EF) was used as the evaluation index. The results showed that when using chlorpheniramine (CPM) and ofloxacin (OFLO), the enrichment capacity of E. coli was better than that of S. aureus. When extracting a single analyte, the enrichment ability of E. coli for CPM was significantly higher than other analytes, and the EF was 8.5. In a mixture solution of antibacterial analytes, OFLO could be enriched mostly by E. coli. However, in the mixture solution of antibacterial and non-antibacterial analytes, CPM was enriched more than that of antibacterial analytes. In real rat plasma, bio-SPE using live E. coli could obviously extract CPM, while traditional liquid-liquid extraction could not. The confocal microscopy results showed that the extraction mechanism may not only depend on the surface adsorption of bacteria with analytes but also on the uptake into bacteria. This provides a valuable basis for the development of more biological separation materials based on biological interactions.
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Affiliation(s)
- Yi Liu
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, P. R. China.,School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Xinxin Luo
- School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Min Wang
- School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Zhining Xia
- School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Yike Huang
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, P. R. China
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Ma J, Hou L, Wu G, Wang L, Wang X, Chen L. Multi-Walled Carbon Nanotubes for Magnetic Solid-Phase Extraction of Six Heterocyclic Pesticides in Environmental Water Samples Followed by HPLC-DAD Determination. MATERIALS 2020; 13:ma13245729. [PMID: 33334066 PMCID: PMC7765549 DOI: 10.3390/ma13245729] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 12/07/2020] [Accepted: 12/13/2020] [Indexed: 12/23/2022]
Abstract
Magnetic multi-walled carbon nanotubes were prepared as magnetic solid-phase extraction (MSPE) adsorbent for the enrichment of six heterocyclic pesticides in environmental water samples, including imidacloprid, triadimefon, fipronil, flusilazole, chlorfenapyr and fenpyroximate. Then six heterocyclic pesticides were separated and determined by high-performance liquid chromatography-diode-array detector (HPLC-DAD). Major factors influencing MSPE efficiency, including the dose of mag-multi-walled carbon nanotubes (mag-MWCNTs), extraction time, solution pH, salt concentration, type and volume of eluent and desorption time were investigated. Under the optimized conditions, the enrichment factor of the method reached to 250. The linearity was achieved within 0.05–10.0 μg/L for imidacloprid and chlorfenapyr, 0.10–10.0 μg/L for fipronil, flusilazole, triadimefon and fenpyroximate. Limits of detection were in the range of 0.01–0.03 μg/L. Good precision at three spiked levels were 1.1–11.2% (intra-day) and 1.7–11.0% (inter-day) with relative standard deviation of peak area, respectively. The developed method was utilized to analyze tap water, river water and reservoir water samples and recoveries at three spiked concentration levels ranged from 72.2% to 107.5%. The method was proved to be a convenient, rapid and practical method for sensitive determination of heterocyclic pesticides.
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Affiliation(s)
- Jiping Ma
- School of Environmental & Municipal Engineering, Qingdao University of Technology, Qingdao 266033, China; (L.H.); (G.W.)
- Correspondence: (J.M.); (L.C.)
| | - Liwei Hou
- School of Environmental & Municipal Engineering, Qingdao University of Technology, Qingdao 266033, China; (L.H.); (G.W.)
| | - Gege Wu
- School of Environmental & Municipal Engineering, Qingdao University of Technology, Qingdao 266033, China; (L.H.); (G.W.)
| | - Liyan Wang
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Centre for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; (L.W.); (X.W.)
| | - Xiaoyan Wang
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Centre for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; (L.W.); (X.W.)
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Lingxin Chen
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Centre for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; (L.W.); (X.W.)
- Correspondence: (J.M.); (L.C.)
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Ghorbani M, Aghamohammadhassan M, Ghorbani H, Zabihi A. Trends in sorbent development for dispersive micro-solid phase extraction. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105250] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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11
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Alipanahpour Dil E, Asfaram A, Sadeghfar F. Magnetic dispersive micro-solid phase extraction with the CuO/ZnO@Fe3O4-CNTs nanocomposite sorbent for the rapid pre-concentration of chlorogenic acid in the medical extract of plants, food, and water samples. Analyst 2019; 144:2684-2695. [DOI: 10.1039/c8an02484g] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
CuO/ZnO@Fe3O4-CNTs-NC was synthesized and used as a sorbent in a MDMSPE method for the determination of chlorogenic acid in the medical extract of plants, food, and water samples.
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Affiliation(s)
| | - Arash Asfaram
- Medicinal Plants Research Center
- Yasuj University of Medical Sciences
- Yasuj
- Iran
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12
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Hashemi B, Zohrabi P, Dehdashtian S. Application of green solvents as sorbent modifiers in sorptive-based extraction techniques for extraction of environmental pollutants. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.09.026] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Ahmadi R, Hemmateenejad B, Safavi A, Shojaeifard Z, Mohabbati M, Firuzi O. Assessment of cytotoxicity of choline chloride-based natural deep eutectic solvents against human HEK-293 cells: A QSAR analysis. CHEMOSPHERE 2018; 209:831-838. [PMID: 30114731 DOI: 10.1016/j.chemosphere.2018.06.103] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 06/13/2018] [Accepted: 06/14/2018] [Indexed: 06/08/2023]
Abstract
Deep eutectic solvents (DESs) are a new generation of solvents. To consider them as green solvents, investigation of their toxicity is essential. In this work, the cytotoxicity of a number of natural deep eutectic solvents (NADESs) against HEK-293 human embryonic kidney cells was evaluated by MTT assay. The NADESs were prepared with choline chloride (ChCl) as hydrogen-bond acceptor (HBA) and different sugar alcohols as hydrogen-bond donor (HBD) constituents. They showed IC50 values in the range of 3.52-75.46 mM. These results were used to evaluate the effect of structural parameters on the cytotoxicity of the studied NADESs by using quantitative structure activity relationship (QSAR) analysis. A three-parameter linear model was obtained between - log(IC50) as a dependent variable and structural descriptors as independent variables. Rotatable bond number (RBN), mean atomic van der Waals volume (Mv) and the interaction of second power carbon numbers with the molar ratio of HBA to HBD in each NADES (C2 Ratio), were three major parameters. The statistical model covered about 76.4% and 69.8% variance of data in training and leave-one-out cross-validation, respectively. This work, as the first study on the QSAR analysis of DESs, can provide a good perspective for designing greener novel DESs.
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Affiliation(s)
- Raheleh Ahmadi
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz, 7194684795, Iran
| | - Bahram Hemmateenejad
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz, 7194684795, Iran; Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Afsaneh Safavi
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz, 7194684795, Iran.
| | - Zahra Shojaeifard
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz, 7194684795, Iran
| | - Maryam Mohabbati
- Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Omidreza Firuzi
- Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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Ma J, Wu G, Li S, Tan W, Wang X, Li J, Chen L. Magnetic solid-phase extraction of heterocyclic pesticides in environmental water samples using metal-organic frameworks coupled to high performance liquid chromatography determination. J Chromatogr A 2018; 1553:57-66. [DOI: 10.1016/j.chroma.2018.04.034] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 04/09/2018] [Accepted: 04/14/2018] [Indexed: 02/09/2023]
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15
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Farnoudiyan-Habibi A, Massoumi B, Jaymand M. A novel strategy for spectrophotometric simultaneous determination of amitriptyline and nortriptyline based on derivation with a quinonoid compound in serum samples. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 168:235-243. [PMID: 27294553 DOI: 10.1016/j.saa.2016.06.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 06/03/2016] [Accepted: 06/06/2016] [Indexed: 06/06/2023]
Affiliation(s)
- Amir Farnoudiyan-Habibi
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, P.O. Box: 51656-65811, Tabriz, Islamic Republic of Iran
| | - Bakhshali Massoumi
- Department of Chemistry, Payame Noor University, P.O. Box: 19395-3697, Tehran, Islamic Republic of Iran
| | - Mehdi Jaymand
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, P.O. Box: 51656-65811, Tabriz, Islamic Republic of Iran.
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Li G, Ahn WS, Row KH. Hybrid molecularly imprinted polymers modified by deep eutectic solvents and ionic liquids with three templates for the rapid simultaneous purification of rutin, scoparone, and quercetin fromHerba Artemisiae Scopariae. J Sep Sci 2016; 39:4465-4473. [DOI: 10.1002/jssc.201600892] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 09/22/2016] [Accepted: 09/22/2016] [Indexed: 12/30/2022]
Affiliation(s)
- Guizhen Li
- Department of Chemistry and Chemical Engineering; Inha University; Incheon Korea
| | - Wha Seung Ahn
- Department of Chemistry and Chemical Engineering; Inha University; Incheon Korea
| | - Kyung Ho Row
- Department of Chemistry and Chemical Engineering; Inha University; Incheon Korea
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Ionic liquid-assisted electrochemical determination of pyrimethanil using reduced graphene oxide conjugated to flower-like NiCo2O4. Anal Chim Acta 2016; 935:104-12. [DOI: 10.1016/j.aca.2016.07.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 07/03/2016] [Accepted: 07/11/2016] [Indexed: 11/20/2022]
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18
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Jiang Q, Liu Q, Chen Q, Zhao W, Xiang G, He L, Jiang X, Zhang S. Dicationic polymeric ionic-liquid-based magnetic material as an adsorbent for the magnetic solid-phase extraction of organophosphate pesticides and polycyclic aromatic hydrocarbons. J Sep Sci 2016; 39:3221-9. [DOI: 10.1002/jssc.201600267] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 06/14/2016] [Accepted: 06/21/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Qiong Jiang
- Department of Chemistry, Key Laboratory of Chemical Biology and Organic Chemistry of Henan; Zhengzhou University; Zhengzhou China
| | - Qin Liu
- School of Chemistry and Chemical Engineering; Henan University of Technology; Zhengzhou China
| | - Qiliang Chen
- School of Chemistry and Chemical Engineering; Henan University of Technology; Zhengzhou China
| | - Wenjie Zhao
- Department of Chemistry, Key Laboratory of Chemical Biology and Organic Chemistry of Henan; Zhengzhou University; Zhengzhou China
- School of Chemistry and Chemical Engineering; Henan University of Technology; Zhengzhou China
| | - Guoqiang Xiang
- School of Chemistry and Chemical Engineering; Henan University of Technology; Zhengzhou China
| | - Lijun He
- School of Chemistry and Chemical Engineering; Henan University of Technology; Zhengzhou China
| | - Xiuming Jiang
- School of Chemistry and Chemical Engineering; Henan University of Technology; Zhengzhou China
| | - Shusheng Zhang
- Department of Chemistry, Key Laboratory of Chemical Biology and Organic Chemistry of Henan; Zhengzhou University; Zhengzhou China
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Li H, Cheng T, Wang S, Zhu X, Zhang H. High-efficiency extraction of nucleosides based on the combination of self-assembly ionic liquid layer and boronic acid-functionalized attapulgite. Talanta 2016; 153:71-8. [DOI: 10.1016/j.talanta.2016.02.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2015] [Revised: 01/31/2016] [Accepted: 02/01/2016] [Indexed: 01/20/2023]
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Tang W, Li G, Row KH, Zhu T. Preparation of hybrid molecularly imprinted polymer with double-templates for rapid simultaneous purification of theophylline and chlorogenic acid in green tea. Talanta 2016; 152:1-8. [DOI: 10.1016/j.talanta.2016.01.046] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2015] [Revised: 01/21/2016] [Accepted: 01/23/2016] [Indexed: 11/28/2022]
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21
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Development of magnetic graphene @hydrophilic polydopamine for the enrichment and analysis of phthalates in environmental water samples. Talanta 2015; 132:753-9. [DOI: 10.1016/j.talanta.2014.10.014] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 10/01/2014] [Accepted: 10/02/2014] [Indexed: 10/24/2022]
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22
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Development of stir bar sorptive-dispersive microextraction mediated by magnetic nanoparticles and its analytical application to the determination of hydrophobic organic compounds in aqueous media. J Chromatogr A 2014; 1362:25-33. [DOI: 10.1016/j.chroma.2014.08.024] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Revised: 07/31/2014] [Accepted: 08/06/2014] [Indexed: 11/22/2022]
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Zhang R, Su P, Yang L, Yang Y. Microwave-assisted preparation of poly(ionic liquids)-modified magnetic nanoparticles for pesticide extraction. J Sep Sci 2014; 37:1503-10. [PMID: 24687971 DOI: 10.1002/jssc.201400125] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Revised: 03/21/2014] [Accepted: 03/23/2014] [Indexed: 11/05/2022]
Abstract
Novel poly(ionic liquids) were synthesized and immobilized on prepared magnetic nanoparticles, which were used to extract pesticides from fruit and vegetable samples by dispersive solid-phase extraction prior to high-performance liquid chromatography analysis. Compared with monomeric ionic liquids, poly(ionic liquids) have a larger effective contact area and higher viscosity, so they can achieve higher extraction efficiency and be used repeatedly without a decrease in analyte recovery. The immobilized poly(ionic liquids) were rapidly separated from the sample matrix, providing a simple approach for sample pretreatment. The nature and volume of the desorption solvent and amount of poly(ionic liquid)-modified magnetic material were optimized for the extraction process. Under optimum conditions, calibration curves were linear (R(2) > 0.9988) for pesticide concentrations in the range of 0.100-10.000 μg/L. The relative standard deviations for repeated determinations of the four analytes were 2.29-3.31%. The limits of detection and quantification were 0.29-0.88 and 0.97-2.93 μg/L, respectively. Our results demonstrate that the developed poly(ionic liquid)-modified material is an effective absorbent to extract pesticides from fruit and vegetable samples.
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Affiliation(s)
- Ruizhe Zhang
- College of Science, Beijing University of Chemical Technology, Beijing, 100029, P.R. China
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