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Cao S, Huang S, Yang C, Lian L, Ren M, Sun D. ZIF-67-modified magnetic nanoparticles for extraction of phenoxy carboxylic acid herbicides. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:5483-5491. [PMID: 37840357 DOI: 10.1039/d3ay01257c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2023]
Abstract
Phenoxy carboxylic acid (PCA) herbicides are commonly used herbicides that can easily accumulate in soil, groundwater, crops, and vegetable surfaces. Thus, they pose a serious risk to human health. Accurate detection of trace amounts of PCAs in various matrixes is crucial. Herein, ZIF-67-modified magnetic nanoparticles (MNPs, ZIF-67@Fe3O4) were prepared by growing ZIF-67 on the surface of Fe3O4 MNPs. The introduction of ZIF-67 improved the dispersion of Fe3O4 nanoparticles in water and enhanced their extraction performance for PCAs. When an eluent consisting of ammonia water and acetonitrile (5% : 95%; v/v) was employed, 10 mg of ZIF-67@Fe3O4 displayed optimal extraction performance for PCAs in a 20 mL sample solution at a pH of 3. We achieved a limit of detection ranging from 0.014 μg L-1 to 0.056 μg L-1 for four types of PCA herbicides by using the newly developed method. Notably, the values were considerably lower than the maximum concentration levels of PCAs in drinking water set by the Environmental Protection Agency. The relative recovery rate of PCAs using ZIF-67@Fe3O4 ranged from 83.75% to 117.07% when applied to river water and apple samples. These results demonstrate the great potential of ZIF-67@Fe3O4 in determining the residues of organic pesticides in real samples.
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Affiliation(s)
- Shengyu Cao
- Department of Analytical Chemistry, Jilin Institute of Chemical Technology, Jilin, China.
| | - Shanshan Huang
- Department of Analytical Chemistry, Guangxi Vocational & Technical Institute of Industry, Guangxi, China
| | - Chudi Yang
- Department of Analytical Chemistry, Jilin Institute of Chemical Technology, Jilin, China.
| | - Lili Lian
- Department of Analytical Chemistry, Jilin Institute of Chemical Technology, Jilin, China.
- Department of Analytical Chemistry, Guangxi Vocational & Technical Institute of Industry, Guangxi, China
| | - Minhong Ren
- Department of Analytical Chemistry, Guangxi Vocational & Technical Institute of Industry, Guangxi, China
| | - Dazhi Sun
- Department of Analytical Chemistry, Jilin Institute of Chemical Technology, Jilin, China.
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JIANG W, CHEN Y, BI W. [Synthesis of porous organic framework materials based on deep eutectic solvents and their application in solid-phase extraction]. Se Pu 2023; 41:901-910. [PMID: 37875412 PMCID: PMC10599290 DOI: 10.3724/sp.j.1123.2023.08025] [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: 08/29/2023] [Indexed: 10/26/2023] Open
Abstract
This paper reviews the application of deep eutectic solvents (DESs) in the synthesis of metal-organic frameworks (MOFs) and covalent organic frameworks (COFs) as well as their prospects in the field of solid-phase extraction (SPE). Porous organic frameworks (POFs) have unique properties such as a large specific surface area, high porosity, and easy modification. Thus, these materials are widely applied in the fields of catalysis, adsorption, drug delivery, gas storage, and separation. POFs include MOFs, COFs, conjugated microporous polymers (CMPs), porous aromatic frameworks (PAFs), and covalent triazine frameworks (CTFs). MOFs are constructed from metal ions/clusters and organic ligands through coordination bonds and can be extended in two or three dimensions by repeated coordination with potential voids. COFs are formed from two monomers containing light elements (such as carbon, hydrogen, oxygen, nitrogen, boron, and other elements) via coordination bonds and have large two- or three-dimensional structures. However, conventional POF synthesis methods generally suffer from disadvantages such as long synthesis times, high temperature and pressure requirements, and the use of toxic and hazardous reaction solvents. DES consists of a hydrogen bond acceptor (HBA) and a hydrogen bond donor (HBD) bound by hydrogen-bonding interactions. It is a promising green solvent for material synthesis owing to its low vapor pressure, high stability, and ease of preparation. DES can be used to prepare MOFs and COFs and, in specific cases, acts as a structure-directing agent, which has an important impact on the structure and properties of the resulting frameworks. Using appropriate DES formulations, researchers can modulate the crystal structures, pore sizes, and surface properties of MOFs and COFs, resulting in materials with excellent characteristics. SPE is an analytical technique in which a sample solution is added to an SPE column; the sample solution is forced through the stationary phase, and the target compounds are collected for analysis by elution with an organic solvent. Therefore, suitable stationary-phase materials are critical for SPE. Owing to their large specific surface areas and abundant active sites, MOFs and COFs exhibit outstanding adsorption capacity and selectivity in SPE and can effectively enrich target analytes from complex samples. DES-based MOFs and COFs have shown potential use in a wide range of applications, such as in environmental analysis, food testing, and biological sample analysis. Although DES-based MOFs and COFs for SPE are still in the early stages of development, their properties such as efficient enrichment and high selectivity offer good prospects for practical applications. Future research should continue to explore DES-based synthesis methods in depth to prepare other MOFs and COFs with the desired properties and investigate their potential applications in various fields. These efforts are expected to apply these novel materials in commercialized solid-phase extraction methods, bringing new development opportunities in the field of analytical chemistry.
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Yang H, Dai H, Wan X, Shan D, Zhang Q, Li J, Xu Q, Wang C. Simultaneous determination of multiple mycotoxins in corn and wheat by high efficiency extraction and purification based on polydopamine and ionic liquid bifunctional nanofiber mat. Anal Chim Acta 2023; 1267:341361. [PMID: 37257974 DOI: 10.1016/j.aca.2023.341361] [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: 04/01/2023] [Revised: 05/10/2023] [Accepted: 05/11/2023] [Indexed: 06/02/2023]
Abstract
Due to the universality and harmfulness of mycotoxin co-contamination in cereals, it is of great significance to simultaneously monitor various mycotoxins co-polluted to ensure food safety and public health. In this work, a nanofiber mat modified by polydopamine and ionic liquid (PDA-IL-NFsM) was prepared and utilized as a solid-phase extraction (SPE) adsorbent for the simultaneous quantitative detection of multiple mycotoxins in corn and wheat. The PDA-IL-NFsM can form multiple retention mechanisms with the targets through hydrogen bond, π-π interaction, electrostatic or hydrophobic interaction, it shows favorable simultaneous adsorption performance (adsorption efficiency mostly higher than 88.27%) for fifteen mycotoxins in seven classes. Moreover, it can significantly reduce the matrix effect (lower than -13.69%), showing a good purification effect on the sample matrix. Based on the superior performance of PDA-IL-NFsM, a simple sample preparation method was established. The sample extract is simply diluted with water for SPE, and the eluent can be directly collected for ultra performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) analysis. The detection limit can reach 0.04-4.21 μg kg-1, the recovery was 80.09%-113.01%, and the relative standard deviations of intra-day and inter-day precision were 2.80%-14.81% and 0.68%-13.80% respectively. The results show that the proposed method has good sensitivity, accuracy and precision, and has practical application potential.
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Affiliation(s)
- Huan Yang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Hairong Dai
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Xuerui Wan
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Dandan Shan
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Qiuping Zhang
- Suzhou Municipal Center for Disease Prevention and Control, Suzhou, China
| | - Jian Li
- Suzhou Municipal Center for Disease Prevention and Control, Suzhou, China
| | - Qian Xu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China.
| | - Chunmin Wang
- Suzhou Municipal Center for Disease Prevention and Control, Suzhou, China.
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Zhou F, Deng H, Emiezi Agarry I, Hu J, Xu D, Feng H, Kan J, Cai T, Chen K. Determination of multiple mycotoxins in chili powder using cold-induced liquid-liquid extraction and Fe 3O 4@MWCNTs-NH 2 coupled with UPLC-Q-TOF/MS. Food Chem 2023; 423:136291. [PMID: 37178595 DOI: 10.1016/j.foodchem.2023.136291] [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: 11/30/2022] [Revised: 04/24/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023]
Abstract
Food matrix interference is still a big challenge in analyzing multiclass mycotoxins. Herein, a novel cold-induced liquid-liquid extraction-magnetic solid phase extraction (CI-LLE-MSPE) coupled with ultra-high performance liquid chromatography-quadrupole time of flight mass spectrometry (UPLC-Q-TOF/MS) method was explored for the simultaneous determination of multiple mycotoxins in chili powders. Fe3O4@MWCNTs-NH2 nanomaterials were prepared and characterized, and the factors affecting the MSPE process were investigated. Based on this, the CI-LLE-MSPE-UPLC-Q-TOF/MS method was established for determining ten mycotoxins in chili powders. The proffered technique eliminated the matrix interference effectively and demonstrated strong linearity (0.5-500 µg/kg, R2 ≥ 0.999), high sensitivity (limit of quantification was 0.5-1.5 µg/kg), and the recovery was 70.6%-111.7%. The extraction process is simpler than conventional methods, as the adsorbent can be separated using magnets, and reusable adsorbents are beneficial in reducing costs. In addition, the method can provide a valuable reference for pretreatment procedures for other complex matrices.
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Affiliation(s)
- Fenglan Zhou
- College of Food Science, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing 400715, PR China; Chinese-Hungarian Cooperative Research Centre for Food Science, Chongqing 400715, PR China; Chongqing Key Laboratory of Specialty Food Co-built by Sichuan and Chongqing, Chongqing 400715, PR China
| | - Huiling Deng
- Chongqing Academy of Science and Technology, Building B, No. 2, Yangliu Road, North New Area, Chongqing 401121, PR China
| | - Israel Emiezi Agarry
- College of Food Science, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing 400715, PR China; Chinese-Hungarian Cooperative Research Centre for Food Science, Chongqing 400715, PR China; Chongqing Key Laboratory of Specialty Food Co-built by Sichuan and Chongqing, Chongqing 400715, PR China
| | - Jiang Hu
- Chongqing Academy of Science and Technology, Building B, No. 2, Yangliu Road, North New Area, Chongqing 401121, PR China
| | - Donghui Xu
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, No.12 Zhongguancun South St., Haidian District, Beijing 100081, PR China
| | - Hui Feng
- Shandong Huge Grand Testing Technology Co., Ltd., No.1003 Gangxing Sanlu, Licheng Dist, Jinan 250000, Shandong, PR China
| | - Jianquan Kan
- College of Food Science, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing 400715, PR China; Chinese-Hungarian Cooperative Research Centre for Food Science, Chongqing 400715, PR China; Chongqing Key Laboratory of Specialty Food Co-built by Sichuan and Chongqing, Chongqing 400715, PR China
| | - Tian Cai
- School of Chemistry and Chemical Engineering, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing 400715, PR China; Chinese-Hungarian Cooperative Research Centre for Food Science, Chongqing 400715, PR China.
| | - Kewei Chen
- College of Food Science, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing 400715, PR China; Chinese-Hungarian Cooperative Research Centre for Food Science, Chongqing 400715, PR China; Chongqing Key Laboratory of Specialty Food Co-built by Sichuan and Chongqing, Chongqing 400715, PR China.
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Zhinzhilo VA, Uflyand IE. Magnetic Nanocomposites Based on Metal-Organic Frameworks: Preparation, Classification, Structure, and Properties (A Review). RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222100097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Torabizadeh M, Tabar-Heydar K, Ahmadi SH. Direct Determination of Pyrethroids in Aqueous Samples by a Metal Organic Framework “MIL-101(Cr)” Sorbent for Solid-Phase Extraction and Thermal Desorption Coupled with GC-FID. JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1134/s1061934822080068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Ionic liquid-based magnetic nanoparticles for magnetic dispersive solid-phase extraction: A review. Anal Chim Acta 2022; 1201:339632. [PMID: 35300789 DOI: 10.1016/j.aca.2022.339632] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 02/15/2022] [Accepted: 02/17/2022] [Indexed: 12/15/2022]
Abstract
Due to their highly tunable nature and outstanding physicochemical properties, ionic liquids (ILs) have been widely reported for use in the synthesis of multitudinous magnetic nanoparticles (MNPs). IL-based magnetic nanoparticles (IL-MNPs) have great potential in magnetic dispersive solid-phase extraction (MDSPE). At present, IL-MNPs have been successfully applied in the pretreatment of MDSPE samples from medicines, pesticides, veterinary drugs, heavy metals, dyes, additives, and proteins in agricultural products, foods and beverages, environmental water, and biological samples. In this review, the preparation of IL-MNPs and their application in MDSPE are comprehensively summarized. The structural characteristics of the introduced ILs used to prepare the IL-MNPs and the synthetic routes employed to obtain the IL-MNPs are described, including physical coating and chemical bonding methods. The IL-MNPs are then classified and described according to different modified materials, including silica-based materials, carbon-based materials, metal-organic frameworks, molecularly imprinted polymers and other interesting large/small molecules. Finally, the research prospects and development directions of IL-MNPs in the context of MDSPE are further identified.
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Villa CC, Valencia GA, Córdoba AL, Ortega-Toro R, Ahmed S, Gutiérrez TJ. Zeolites for food applications: A review. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101577] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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9
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Metal organic framework-based magnetic solid phase extraction of pesticides in complex matrices. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106907] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Xu ML, Gao Y, Wang X, Han XX, Zhao B. Comprehensive Strategy for Sample Preparation for the Analysis of Food Contaminants and Residues by GC-MS/MS: A Review of Recent Research Trends. Foods 2021; 10:2473. [PMID: 34681522 PMCID: PMC8535889 DOI: 10.3390/foods10102473] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 10/06/2021] [Accepted: 10/08/2021] [Indexed: 01/19/2023] Open
Abstract
Food safety and quality have been gaining increasing attention in recent years. Gas chromatography coupled to tandem mass spectrometry (GC-MS/MS), a highly sensitive technique, is gradually being preferred to GC-MS in food safety laboratories since it provides a greater degree of separation on contaminants. In the analysis of food contaminants, sample preparation steps are crucial. The extraction of multiple target analytes simultaneously has become a new trend. Thus, multi-residue analytical methods, such as QuEChERs and adsorption extraction, are fast, simple, cheap, effective, robust, and safe. The number of microorganic contaminants has been increasing worldwide in recent years and are considered contaminants of emerging concern. High separation in MS/MS might be, in certain cases, favored to sample preparation selectivity. The ideal sample extraction procedure and purification method should take into account the contaminants of interest. Moreover, these methods should cooperate with high-resolution MS, and other sensitive full scan MSs that can produce a more comprehensive detection of contaminants in foods. In this review, we discuss the most recent trends in preparation methods for highly effective detection and analysis of food contaminants, which can be considered tools in the control of food quality and safety.
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Affiliation(s)
- Meng-Lei Xu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China;
- College of Food Science and Engineering, Jilin University, Changchun 130062, China
| | - Yu Gao
- College of Plant Protection, Jilin Agricultural University, Changchun 130118, China;
| | - Xiao Wang
- Jilin Institute for Food Control, Changchun 130103, China;
| | - Xiao Xia Han
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China;
| | - Bing Zhao
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China;
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Xu Q, Liu Z, Yan C, Lu R, Zhou W. 1-Octyl-3-methylimidazolium hexafluorophosphate-functionalised magnetic poly β-cyclodextrin for magnetic solid-phase extraction ofpyrethroids from tea infusions. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2021; 38:1743-1754. [PMID: 34237240 DOI: 10.1080/19440049.2021.1943004] [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] [Indexed: 10/20/2022]
Abstract
In this study, a novel sorbent, 1-octyl-3-methylimidazolium hexafluorophosphate functionalised magnetic poly β-cyclodextrin, was successfully synthesised and applied to magnetic solid-phase extraction for the determination of pyrethroids in tea infusions. The sorbent was characterised by transmission electron microscopy, energy-dispersive spectroscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, vibrating sample magnetometer and Brunauer-Emmett-Teller measurement. All factors affecting extraction efficiency, such as sorbent amount, extraction time, ionic strength and desorption conditions, were optimised individually. Under the chosen conditions, wide linearity (2.5-500 μg L-1) with determination coefficients ranging from 0.9995 to 0.9999, low limits of detection of 0.32-0.54 μg L-1 and good precision (intra-day: 2.6-7.0%; inter-day: 3.5-7.6%) were achieved for four pyrethroids in tea infusions. The relative recoveries of target analytes in real tea infusion samples were from 70% to 101% with relative standard deviations lower than 9.1%. We conclude that the proposed method is promising in the detection of pyrethroids in tea infusions.
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Affiliation(s)
- Qinqin Xu
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Zikai Liu
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Chen Yan
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Runhua Lu
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Wenfeng Zhou
- Department of Applied Chemistry, China Agricultural University, Beijing, China
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Liu Z, Meng Z, Fan J, Li J, Zhou W, Gao H, Zhang S, Lu R. Use of 1-octyl-3-methylimidazole hexafluorophosphate modified magnetic hyperbranched polyamideamine as sorbent for the extraction of pyrethroid insecticides from tea infusion. J Sep Sci 2021; 44:2957-2964. [PMID: 34021970 DOI: 10.1002/jssc.202100230] [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: 03/19/2021] [Revised: 05/18/2021] [Accepted: 05/19/2021] [Indexed: 11/12/2022]
Abstract
Magnetic hyperbranched polyamideamine was carboxylated using succinic anhydride and modified further with 1-octyl-3-methylimidazole hexafluorophosphate successively. The morphology and chemical composition of the prepared material was characterized by transmission electron microscopy, scanning electron microscopy, Fourier transform infrared spectroscopy, Brunauer-Emmett-Teller measurement, X-ray photoelectron spectroscopy, etc. 1-Octyl-3-methylimidazole hexafluorophosphate modified magnetic hyperbranched polyamideamine was used as sorbent in the magnetic solid-phase extraction for the separation and enrichment of five pyrethroid insecticides from tea infusion. The magnetic solid-phase extraction method proposed in this article has low method detection limits (0.53-0.71 ng/mL), acceptable coefficient of determination (0.9992-0.9998), wide linear ranges (2.5-500.0 ng/mL), and good repeatability (intraday: 1.2-6.3%; interday: 1.6-5.4%). In the detection of five pyrethroid insecticides in tea infusion, relative recoveries were in the range from 87.7 to 114.7% with satisfactory relative standard deviations (0.2-7.4%). With the aid of quantum chemistry calculations, the interaction energy between the sorbent and five pyrethroid insecticides was calculated, which proved the necessity of the modification of 1-octyl-3-methylimidazole hexafluorophosphate.
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Affiliation(s)
- Zikai Liu
- Department of Applied Chemistry, China Agricultural University, Beijing, P. R. China
| | - Zilin Meng
- Department of Applied Chemistry, China Agricultural University, Beijing, P. R. China
| | - Jiaxuan Fan
- Department of Applied Chemistry, China Agricultural University, Beijing, P. R. China
| | - Jing Li
- Department of Applied Chemistry, China Agricultural University, Beijing, P. R. China
| | - Wenfeng Zhou
- Department of Applied Chemistry, China Agricultural University, Beijing, P. R. China
| | - Haixiang Gao
- Department of Applied Chemistry, China Agricultural University, Beijing, P. R. China
| | - Sanbing Zhang
- Department of Applied Chemistry, China Agricultural University, Beijing, P. R. China
| | - Runhua Lu
- Department of Applied Chemistry, China Agricultural University, Beijing, P. R. China
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Recent advances in metal-organic frameworks/membranes for adsorption and removal of metal ions. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116226] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Liu X, Fu J, Wang L, Wang C. Polydimethylsiloxane/ZIF-8@GO sponge headspace solid-phase extraction followed by GC-MS for the analysis of lavender essential oil. Anal Biochem 2021; 622:114167. [PMID: 33722580 DOI: 10.1016/j.ab.2021.114167] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 03/03/2021] [Accepted: 03/04/2021] [Indexed: 10/21/2022]
Abstract
A novel microwave-assisted (MA) headspace solid-phase extraction (HS-SPE) based on polydimethylsiloxane (PDMS)/ZIF-8@GO sponge was developed for the simultaneous extraction and determination of essential oil constituents in lavender. The PDMS/ZIF-8@GO sponge with a high surface area and excellent adsorption capacity was successfully applied in the HS-SPE process. Microwave-assisted coupled with PDMS/ZIF-8@GO sponge headspace solid-phase extraction followed by GC-MS was proposed. Different experimental parameters were investigated. The optimal conditions were found to be as follows: 2:1 as the quality ratio of ZIF-8 to GO, ZIF-8@GO dosage of 30 mg, microwave power of 600 W, extraction time of 10 min and desorption solvent of n-hexane. This method was successfully applied to the analysis of 11 samples of lavender in different varieties. A total of 52 compounds were identified by the proposed method. A good linearity was observed from 14 to 800 ng with a correlation coefficient (R2) value of >0.99. Multivariate statistical analysis was used to establish the relationship between the varieties and the volatile components for further discriminant analysis. These results demonstrated that the MA-PDMS/ZIF-8@GO is an efficient, sensitive and small sample consumption method for the determination of the essential oil in dried plant materials.
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Affiliation(s)
- Xin Liu
- Key Laboratory of Oil & Gas Fine Chemicals Ministry of Education & Xinjiang Uyghur Autonomous Region, Xinjiang University, Urumqi, 830046, Xinjiang, China
| | - Jihong Fu
- Key Laboratory of Oil & Gas Fine Chemicals Ministry of Education & Xinjiang Uyghur Autonomous Region, Xinjiang University, Urumqi, 830046, Xinjiang, China.
| | - Lili Wang
- Key Laboratory of Oil & Gas Fine Chemicals Ministry of Education & Xinjiang Uyghur Autonomous Region, Xinjiang University, Urumqi, 830046, Xinjiang, China
| | - Caijuan Wang
- Key Laboratory of Oil & Gas Fine Chemicals Ministry of Education & Xinjiang Uyghur Autonomous Region, Xinjiang University, Urumqi, 830046, Xinjiang, China
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YANG XY, GAO L, SUN YM, ZHAO WJ, XIANG GQ, JIANG XM, HE LJ, ZHANG SS. Preparation of Ionic Liquids-modified Metal Organic Frameworks Composite Materials and Their Application in Separation Analysis. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2020. [DOI: 10.1016/s1872-2040(20)60063-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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16
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Abstract
Ionic liquids (ILs) are a group of non-conventional salts with melting points below 100 °C. Apart from their negligible vapor pressure at room temperature, high thermal stability, and impressive solvation properties, ILs are characterized by their tunability. Given such nearly infinite combinations of cations and anions, and the easy modification of their structures, ILs with specific properties can be synthesized. These characteristics have attracted attention regarding their use as extraction phases in analytical sample preparation methods, particularly in liquid-phase extraction methods. Given the liquid nature of most common ILs, their incorporation in analytical sample preparation methods using solid sorbents requires the preparation of solid derivatives, such as polymeric ILs, or the combination of ILs with other materials to prepare solid IL-based composites. In this sense, many solid composites based on ILs have been prepared with improved features, including magnetic particles, carbonaceous materials, polymers, silica materials, and metal-organic frameworks, as additional materials forming the composites. This review aims to give an overview on the preparation and applications of IL-based composites in analytical sample preparation in the period 2017–2020, paying attention to the role of the IL material in those composites to understand the effect of the individual components in the sorbent.
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Iqbal S, Iqbal MM, Javed M, Bahadur A, Yasien S, Hurr A, Ahmad N, Raheel M, Liu G. Modified QuEChERS extraction method followed by simultaneous quantitation of nine multi-class pesticides in human blood and urine by using GC-MS. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1152:122227. [PMID: 32603923 DOI: 10.1016/j.jchromb.2020.122227] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 05/23/2020] [Accepted: 06/05/2020] [Indexed: 01/19/2023]
Abstract
Organophosphate, carbamate and pyrethroid pesticides are the most common insecticides used worldwide. They may cause chronic poisoning in farmers and acute poisoning in homicidal or suicidal cases. The determination of trace levels of these pesticides in human blood and urine is very challenging. This study focuses on a simultaneous quantitation method that was developed and validated for multi-class nine pesticides belonging to organophosphate, carbamate and pyrethroid classes in human blood and urine. Target pesticides were extracted from blood and urine using a modified QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) extraction method. Capillary column DB-35 ms (15 m × 0.25 mm, 0.25 µm) was used for chromatography with a 0.079 ml/min flow rate of carrier gas at constant pressure mode. Quantitation of sulfotep, phorate, carbofuran, chlorpyriphos, profenophos, triazophos, pyriproxyfen, lambda-cyhalothrin and permethrin was performed by mass spectrometer equipped with electron impact ionization source using selected ion monitoring (SIM) mode. The lower and upper limits of quantitation for all nine pesticides were 0.01 mg/L and 2.0 mg/dL respectively. The proposed method was proved to be simple, fast, sensitive, and robust. It has been applied to the analysis of 9 pesticides samples.
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Affiliation(s)
- Shahid Iqbal
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou 516007, Guangdong, China.
| | - Muhammad Muntazir Iqbal
- Department of Chemistry, School of Science, University of Management and Technology Lahore, Pakistan; Department of Toxicology, Punjab Forensic Science Agency Lahore, Pakistan
| | - Mohsin Javed
- Department of Chemistry, School of Science, University of Management and Technology Lahore, Pakistan.
| | - Ali Bahadur
- Department of Transdisciplinary Studies, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 16229, South Korea
| | - Sara Yasien
- University College of Pharmacy, University of The Punjab Lahore, Pakistan
| | - Amir Hurr
- Department of Toxicology, Punjab Forensic Science Agency Lahore, Pakistan
| | - Naveed Ahmad
- Department of Chemistry, School of Science, University of Management and Technology Lahore, Pakistan
| | - Muhammad Raheel
- Department of Chemistry, Balochistan University of Information Technology, Engineering and Management Sciences, Quetta, Pakistan
| | - Guocong Liu
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou 516007, Guangdong, China.
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