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Dong H, Tong L, Cheng M, Hou S. Utilizing electrospun molecularly imprinted membranes for food industry: Opportunities and challenges. Food Chem 2024; 460:140695. [PMID: 39098194 DOI: 10.1016/j.foodchem.2024.140695] [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: 04/02/2024] [Revised: 07/24/2024] [Accepted: 07/27/2024] [Indexed: 08/06/2024]
Abstract
Molecularly imprinted polymers (MIPs) have been widely studied in environmental protection and food industry, owing to their excellent specific recognition and structural stability. However, MIPs prepared by conventional methods suffer from low adsorption capacity and slow mass transfer rate. To date, the combination of electrostatic spinning technology and molecular imprinting technology has been proposed to prepare molecularly imprinted membranes (MIMs) with specific recognition capability, and has shown great attraction in the separation and detection of food additives, as well as the extraction and release of active ingredients. In recent years, MIPs and electrostatic spinning technologies have been investigated and evaluated. However, there is no review of electrostatically spun MIMs for food field. In this review, we focus on the fabrication methods and applications of electrostatically spun MIMs in the food, discuss the challenges in practical food applications, and emphasize the promising applications of electrostatically spun MIMs in food field.
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Affiliation(s)
- Hao Dong
- College of Food Science and Engineering, Shandong Agricultural University, Taian 271018, Shandong, PR China.
| | - Liping Tong
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, Shandong, PR China.
| | - Mengmeng Cheng
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, Shandong, PR China.
| | - Shifeng Hou
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, Shandong, PR China; Key Laboratory of Agricultural Membrane Application of Ministry of Agriculture and Rural Affairs, Taian 271018, Shandong, PR China.
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Asghari E, Saraji M. Preparation of a magnetic molecularly imprinted polymer on fibrous silica nanosphere via self-polycondensation for micro solid-phase extraction of chlorpyrifos. J Chromatogr B Analyt Technol Biomed Life Sci 2024; 1232:123961. [PMID: 38118337 DOI: 10.1016/j.jchromb.2023.123961] [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: 08/14/2023] [Revised: 11/18/2023] [Accepted: 12/05/2023] [Indexed: 12/22/2023]
Abstract
Throughout this research, a new magnetic molecularly imprinted polymer on fibrous silica nanosphere was prepared through self-polycondensation. The selective extraction of chlorpyrifos was performed by the synthesized sorbent and as a determination system, a gas chromatography-electron capture was applied. The formation of sorbent was confirmed through the use of Fourier transform infrared spectroscopy and field emission scanning electron microscopy techniques. The parameters affecting the extraction efficacy of the proposed method were scrutinized in an optimized way. The linear range and the detection limit of the studied method were 0.003-0.3 and 0.001 ng mL-1, respectively. The relative standard deviations were 4.1-5.2 and 5.6-7.6 % for intra- and inter-day (n = 3), respectively. To assess the performance of the proposed method, some water and fruit samples were analyzed and the extraction recoveries of 83-109 % were obtained. These results revealed the method's performance in the analysis of chlorpyrifos in real samples.
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Affiliation(s)
- Effat Asghari
- Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Mohammad Saraji
- Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran.
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3
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Torabi E, Moghadasi M, Mirzaei M, Amiri A. Nanofiber-based sorbents: Current status and applications in extraction methods. J Chromatogr A 2023; 1689:463739. [PMID: 36586288 DOI: 10.1016/j.chroma.2022.463739] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 12/17/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022]
Abstract
Advanced sorbents gradually become a research hotspot on account of the increasing attention paid to environmental problems. Due to the prominent physicochemical features of nanofibers (NFs), such as high porosity, large surface area, favorable interconnectivity, high adsorption capacity, wettability, and the possibility of surface modification using functional groups, these nanostructures are regarded as excellent candidates for extraction applications. Therefore, the research in the field of NFs and their nanocomposites has been increasing in recent years. In the present review, we summarize the most recent studies on NFs-based sorbents focusing on strategies for preparation, characterization, and their unique capabilities as porous sorbents in various sorbent-based extraction methods. Moreover, we further described the performance and selectivity of sorbents to achieve improved extraction efficiency. Finally, some perspectives on the challenges and outlook are provided to aid future investigations related to this topic.
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Affiliation(s)
- Elham Torabi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran
| | - Milad Moghadasi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran
| | - Masoud Mirzaei
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran.; Khorasan Science and Technology Park (KSTP), 12th km of Mashhad-Quchan Road, Mashhad, 9185173911, Khorasan Razavi, Iran.
| | - Amirhassan Amiri
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran..
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Majd M, Nojavan S, Maghsoudi M. Preparation of electrospun polyacrylonitrile/ϒ-cyclodextrin metal–organic framework nanofibers for extraction of multi-classes herbicides from cereal samples before HPLC-UV analysis. Food Chem 2022; 393:133350. [DOI: 10.1016/j.foodchem.2022.133350] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 05/22/2022] [Accepted: 05/28/2022] [Indexed: 01/06/2023]
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Heidarbeigi M, Saraji M, Jafari MT. Silica aerogel modified electrospun polyacrylonitrile as a sorbent for thin-film microextraction of chlorpyrifos from real samples coupled with corona discharge ion mobility spectrometry detection. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:4106-4112. [PMID: 36205746 DOI: 10.1039/d2ay01310j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
In this paper, modified polyacrylonitrile/silica aerogel fibers were prepared and used as an adsorbent for thin-film microextraction of chlorpyrifos. The extracted analyte was analyzed by corona discharge ion mobility spectrometry. The electrospinning method was applied for the preparation of polyacrylonitrile fibers. The alkaline hydrolyzation technique was used to modify the electrospun film surface. Silica aerogel was synthesized on the surface of modified electrospun polyacrylonitrile fibers by the in situ growth technique. To access a high extraction yield, effective synthesis and extraction parameters such as NaOH concentration, reaction temperature and time, thin-film pretreatment, gelation time, solution pH, ionic strength, and extraction time were studied. The linearity range and the limit of detection of the method were 1-100 μg L-1 and 0.3 μg L-1, respectively. The precision of the method was 4 and 12% for the concentration levels of 5 and 60 μg L-1, respectively. Chlorpyrifos was successfully determined by the method in well water, river water, agricultural wastewater, and tangerine samples.
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Affiliation(s)
- Maliheh Heidarbeigi
- Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran.
| | - Mohammad Saraji
- Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran.
| | - Mohammad T Jafari
- Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran.
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Shahhoseini F, Azizi A, S.Bottaro C. A critical evaluation of molecularly imprinted polymer (MIP) coatings in solid phase microextraction devices. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116695] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Abstract
The development of an elution-free solid-phase extraction (SPE) process is of special interest in sample pretreatment. Due to the phase-change merits at relatively low temperatures and easy dissolution in n-hexane, wax spheres show great potential in this field. However, the conventional wax spheres possess a low affinity towards the target analytes when they are used as SPE adsorbents. In this study, using octadecanoic acid as the functional monomer and wax as the matrix, molecularly imprinted wax (MIW) spheres were successfully prepared. The obtained MIW spheres displayed remarkable molecular recognition ability and high selectivity towards the template. Interestingly, the as-synthesized molecularly imprinted wax (MIW) could be dissolved in n-hexane or melted by heating for subsequent fluorescence and mass spectrum analysis without the target elution process. Moreover, the melted MIW exhibited high repeatability, sensitivity and specificity for solid-state fluorescence detection. We believe that the imprinting method presented in this study will open a new window in analytical chemistry.
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Affiliation(s)
- Long Jiang
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei, 430030, China.
| | - Tao Jing
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei, 430030, China.
| | - Xiantao Shen
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei, 430030, China.
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Chen A, Guo H, Luan J, Li Y, He X, Chen L, Zhang Y. The electrospun polyacrylonitrile/covalent organic framework nanofibers for efficient enrichment of trace sulfonamides residues in food samples. J Chromatogr A 2022; 1668:462917. [PMID: 35247720 DOI: 10.1016/j.chroma.2022.462917] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 02/18/2022] [Accepted: 02/20/2022] [Indexed: 10/19/2022]
Abstract
In this work, the electrospun polyacrylonitrile/covalent organic frameworks Tp-BD nanofibers (PAN/Tp-BD) were synthesized and applied as an adsorbent for thin film microextraction (TFME) of seven sulfonamides in animal derived food samples. The morphology, structure, porosity, and stability of the prepared nanofibers were investigated. The PAN/Tp-BD nanofibers exhibited good chemical stability, high flexibility, porous fibrous structure, and excellent extraction efficiency. Based on the PAN/Tp-BD nanofibers as the adsorbent, a thin film microextraction-high performance liquid chromatography (TFME-HPLC) method for the determination of seven sulfonamides (SAs) in food samples was developed. Under the optimal conditions, the TFME-HPLC exhibited the low limit of detection (0.10-0.18 ng·mL-1), the low limit of quantitation (0.33-0.60 ng·mL-1), the wide linear range (0.5-50 ng·mL-1) with correlation coefficients between 0.994 and 0.998, and good enrichment factors between 39.7 to 170.1 towards 20 ng/mL SAs solution. The relative standard deviation (RSD) was lower than 11% in the interday and intraday analysis. Furthermore, the applicability of PAN/Tp-BD nanofibers was demonstrated for measuring trace SAs residues in the spiked food samples with recoveries ranging from 85.3% to 115.2%. The results demonstrated that the PAN/Tp-BD nanofibers have great potential for the efficient extraction of sulfonamides from complex food samples.
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Affiliation(s)
- An Chen
- College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Nankai University, Tianjin 300071, China
| | - Hongying Guo
- College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Nankai University, Tianjin 300071, China
| | - Jingyi Luan
- College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Nankai University, Tianjin 300071, China
| | - Yijun Li
- College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Nankai University, Tianjin 300071, China; National Demonstration Center for Experimental Chemistry Education, Nankai University, Tianjin 300071, China
| | - Xiwen He
- College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Nankai University, Tianjin 300071, China
| | - Langxing Chen
- College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Nankai University, Tianjin 300071, China.
| | - Yukui Zhang
- College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Nankai University, Tianjin 300071, China; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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Javanmardi H, Naderi M, Bagheri H. A stable nitrogen-rich zinc-based metal organic framework to investigate the structural similarity effect on the sorption efficiency of nitrogen-containing compounds. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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Ying X, He J, Li X. Molecularly imprinted electrospun fiber membrane for colorimetric detection of hexanoic acid. E-POLYMERS 2021. [DOI: 10.1515/epoly-2021-0049] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
An imprinted electrospun fiber membrane was developed for the detection of volatile organic acids, which are key components of human body odor. In this study, hexanoic acid (HA) was selected as the target, polymethyl methacrylate (PMMA) was used as the substrate, and colorimetric detection of HA was achieved by a bromocresol purple (BCP) chromogenic agent. The results showed that the morphology of the fiber membrane was uniform and continuous, and it showed excellent selectivity and specificity to HA. Photographs of the color changes before and after fiber membrane adsorption were recorded by a camera and quantified by ImageJ software by the difference in gray value (ΔGray). This method is simple, intuitive, and low cost and has great potential for application in human odor analysis.
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Affiliation(s)
- Xiaoguang Ying
- Chemical Engineering Institute for Polymer Materials, College of Chemical Engineering, Fuzhou University , Fuzhou , China
| | - Jieyuan He
- Chemical Engineering Institute for Polymer Materials, College of Chemical Engineering, Fuzhou University , Fuzhou , China
| | - Xiao Li
- Chemical Engineering Institute for Polymer Materials, College of Chemical Engineering, Fuzhou University , Fuzhou , China
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Kermani M, Jafari MT, Saraji M. Self-rotating stir mesh screen sorptive extraction for analyzing chlorpyrifos by ion mobility spectrometry. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:2631-2644. [PMID: 34036984 DOI: 10.1039/d1ay00595b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A mesh screen was electrochemically coated with polypyrrole and used as a sorptive extractor device, for the first time. This configuration acts in such a way that it is self-rotating in the presence of a magnetic force and can be used for extraction and concentration of analytes. Actually, applying a mesh screen instead of a bar or plate in sorptive extraction provided a more effective contact area between the sorptive materials and sample solution, resulting in higher sorption efficiency. The device performance was assessed by using chlorpyrifos pesticide as a model analyte. A thermal desorption unit was coupled to an ion mobility spectrometer and applied for evaporating the extracted analyte. Different parameters affecting the extraction efficiency during the electro-polymerization and the extraction process, including the time of electrodeposition, the concentration of pyrrole, oxalic acid and salt, temperature and time of extraction, and the stirring rate of the extractor device were investigated and optimized, simultaneously. The detection and quantification limits of the method were calculated to be 0.035 and 0.1 μg L-1, respectively. The linear dynamic range obtained was from 0.1 to 20 μg L-1, with a determination coefficient of 0.9984. The intra-day and inter-day-relative standard deviations (RSD, n = 3) were lower than 3% and 8%, respectively. Under the optimal conditions, the absolute recovery and the enrichment factor were found to be 97% and 5820, respectively. Finally, the relative recoveries of the proposed method were calculated to be in the range of 86-111% for spiked water, wastewater, and apple samples. The results obtained from the method were validated by EPA method 622.
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Affiliation(s)
- Mansoure Kermani
- Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran.
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Ramezani AM, Yamini Y, Nazraz M. Development of a convenient polypyrrole based sorbent for headspace solid phase microextraction of diazinon and chlorpyrifos. J Food Compost Anal 2021. [DOI: 10.1016/j.jfca.2021.103806] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Villa CC, Sánchez LT, Valencia GA, Ahmed S, Gutiérrez TJ. Molecularly imprinted polymers for food applications: A review. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.03.003] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Heydari M, Jafari MT, Saraji M, Soltani R, Dinari M. Covalent triazine-based framework-grafted functionalized fibrous silica sphere as a solid-phase microextraction coating for simultaneous determination of fenthion and chlorpyrifos by ion mobility spectrometry. Mikrochim Acta 2021; 188:4. [PMID: 33389205 DOI: 10.1007/s00604-020-04685-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 12/07/2020] [Indexed: 11/27/2022]
Abstract
A novel covalent triazine-based framework (CTF)-grafted phenyl-functionalized fibrous silica nanosphere, KCC-1 (named as RS-2) was synthesized via a simple and effective Friedel-Crafts approach. The microporous CTF with fluorene backbone was coupled and grown uniformly on the surface of phenyl-functionalized KCC-1 to prepare a hybrid extended porous framework. The prepared materials were characterized, and FE-SEM and TEM images revealed a flower-like structure for RS-2. The synthesized RS-2 showed excellent thermal stability, so the weight loss was about 30% at 800 °C. RS-2 was applied as a new coating in the solid-phase microextraction procedure to extract chlorpyrifos and fenthion pesticides from water, wastewater, and fruit samples, before determining by corona discharge-ion mobility spectrometry. Some experimental factors affecting the extraction yield of the analytes, including ionic strength, stirring rate, sample pH, extraction temperature, and extraction time, were investigated. Under optimum conditions, the linear dynamic ranges were 0.1-10 μg L-1 and 1.0-70 μg L-1, and the limits of detection were 0.05 and 0.55 μg L-1 for chlorpyrifos and fenthion, respectively. The proposed method showed recovery values in the range 86-117% with a precision of 3.0-7.1% for real samples. Covalent triazine-based framework (CTF)-grafted phenyl-functionalized fibrous silica nanosphere (named as RS-2) was synthesized. RS-2 was applied as a sorbent for solid-phase microextraction (SPME) of chlorpyrifos and fenthion from fruit and water samples followed by corona discharge ionization ion mobility spectrometry (CD-IMS).
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Affiliation(s)
- Maryam Heydari
- Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - Mohammad T Jafari
- Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111, Iran.
| | - Mohammad Saraji
- Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - Roozbeh Soltani
- 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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Preparation of electrospun polyacrylonitrile/Ni-MOF-74 nanofibers for extraction of atenolol and captopril prior to HPLC-DAD. Mikrochim Acta 2020; 187:508. [DOI: 10.1007/s00604-020-04483-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 08/05/2020] [Indexed: 12/31/2022]
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16
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Solvent holder-assisted liquid-phase microextraction using nano-structure biomass-derived carbonaceous aerogel combined with ion mobility spectrometry for simultaneous determination of ethion and chlorpyrifos. Mikrochim Acta 2020; 187:232. [DOI: 10.1007/s00604-020-4215-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Accepted: 03/03/2020] [Indexed: 11/27/2022]
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17
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Aladaghlo Z, Fakhari AR, Alavioon SI, Dabiri M. A mesoporous nanosorbent composed of silica, graphene, and palladium (II) for ultrasound-assisted dispersive solid-phase extraction of organophosphorus pesticides prior to their quantitation by ion mobility spectrometry. Mikrochim Acta 2020; 187:209. [DOI: 10.1007/s00604-020-4174-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 02/18/2020] [Indexed: 01/24/2023]
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18
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Azizi A, Bottaro CS. A critical review of molecularly imprinted polymers for the analysis of organic pollutants in environmental water samples. J Chromatogr A 2020; 1614:460603. [DOI: 10.1016/j.chroma.2019.460603] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 10/04/2019] [Accepted: 10/05/2019] [Indexed: 01/05/2023]
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Zhang XF, Zhao LL, Huang MQ, Li XJ, Pan SY. In Situ Real-Time Tracing of Organophosphorus Pesticides in Apples by Solid-Phase Microextraction with Developed Sampling-Rate Calibration. Molecules 2019; 24:molecules24244444. [PMID: 31817260 PMCID: PMC6943702 DOI: 10.3390/molecules24244444] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 11/24/2019] [Accepted: 12/02/2019] [Indexed: 02/06/2023] Open
Abstract
An in situ tracing study based on solid-phase microextraction (SPME) was conducted to investigate the uptake and elimination of organophosphorus pesticides in apples. A matrix-compatible polydimethylsiloxane/poly(styrene-co-divinylbenzene)/polydimethylsiloxane fiber was produced to meet the needs of in situ sampling. The fiber had high extraction ability, good sensitivity and accuracy with respect to the analytes in apple pulp, and could be used 85 times. Although the sampling rate was changing over time, quantification was still achieved by the sampling rate calibration method. Some factors that affect its applicability were studied. The limits of detection were 0.18 ng/g for diazinon and 0.20 ng/g for chlorpyrifos, rather lower than the maximum residue limits of the National Food Safety Standard of China (GB 2763-2016) and the European Commission (Reg.(EU) No 834/2013, 2018/686). The accuracy of in situ SPME quantification was verified by comparing with the results obtained by the traditional liquid-liquid extraction method. In this work, the in situ sampling method is developed using apples, diazinon, and chlorpyrifos as a model system; however, this method can be used for in vivo analysis of fruits and vegetables for nutrition and safety monitoring.
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Affiliation(s)
- Xiao-Fan Zhang
- Key Laboratory of Environment Correlative Dietology (Ministry of Education), College of Food Science & Technology, Huazhong Agricultural University, Wuhan 430070, China; (X.-F.Z.); (L.-L.Z.); (S.-Y.P.)
| | - Li-Li Zhao
- Key Laboratory of Environment Correlative Dietology (Ministry of Education), College of Food Science & Technology, Huazhong Agricultural University, Wuhan 430070, China; (X.-F.Z.); (L.-L.Z.); (S.-Y.P.)
- Institute of Agricultural Products Processing, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Ming-Quan Huang
- China Light Industry Key Laboratory of Liquor Quality and Safety, Beijing Technology and Business University, Beijing 100048, China;
| | - Xiu-Juan Li
- Key Laboratory of Environment Correlative Dietology (Ministry of Education), College of Food Science & Technology, Huazhong Agricultural University, Wuhan 430070, China; (X.-F.Z.); (L.-L.Z.); (S.-Y.P.)
- Correspondence: ; Tel.: +86-27-8728-2111
| | - Si-Yi Pan
- Key Laboratory of Environment Correlative Dietology (Ministry of Education), College of Food Science & Technology, Huazhong Agricultural University, Wuhan 430070, China; (X.-F.Z.); (L.-L.Z.); (S.-Y.P.)
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