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Carbonell-Rozas L, Lara FJ, García-Campaña AM. Analytical Methods Based on Liquid Chromatography and Capillary Electrophoresis to Determine Neonicotinoid Residues in Complex Matrices. A Comprehensive Review. Crit Rev Anal Chem 2023:1-29. [PMID: 36940156 DOI: 10.1080/10408347.2023.2186700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2023]
Abstract
Neonicotinoids (NNIs) are neuro-active and systemic insecticides widely used to protect crops from pest attack. During the last decades, there has been an increase concern about their uses and toxic effects, especially to beneficial and non-target insects such as pollinators. To assess potential health hazards and the environmental impacts derived from NNIs uses, a great variety of analytical procedures for the determination of their residues and their metabolites at trace level in environmental, biological and food samples have been reported. Due to the complexity of the samples, efficient sample pretreatment methods have been developed, which include mostly clean-up and preconcentration steps. On the other hand, among the analytical techniques used for their determination, high-performance liquid chromatography (HPLC) coupled to ultraviolet (UV) or mass spectrometry (MS) detection is the most widely used, although capillary electrophoresis (CE) has also been employed in the last years, considering some improvements in sensitivity when coupling with new MS detectors. In this review, we present a critical overview of analytical methods based on HPLC and CE reported in the last decade, discussing relevant and innovative sample treatments for the analysis of environmental, food and biological samples.
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Affiliation(s)
- Laura Carbonell-Rozas
- Department of de Analytical Chemistry, Faculty of Sciences, University of Granada, Granada, Spain
| | - Francisco J Lara
- Department of de Analytical Chemistry, Faculty of Sciences, University of Granada, Granada, Spain
| | - Ana M García-Campaña
- Department of de Analytical Chemistry, Faculty of Sciences, University of Granada, Granada, Spain
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Khan NS, Pradhan D, Choudhary S, Swargam S, Jain AK, Poddar NK. The interaction analysis between human serum albumin with chlorpyrifos and its derivatives through sub-atomic docking and molecular dynamics simulation techniques. 3 Biotech 2022; 12:272. [PMID: 36105863 PMCID: PMC9464670 DOI: 10.1007/s13205-022-03344-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 08/29/2022] [Indexed: 11/24/2022] Open
Abstract
Chlorpyrifos (CPF) is an extensively used organophosphate pesticide for crop protection. However, there are concerns about it contaminating the environment and human health, with estimated three lakh deaths annually. The molecular modeling protocol was assisted in redesigning thirteen well-known CPF linkers and inserting them at five selectable CPF (R1-R5) positions of CPF to get 258 CPF derivatives. CPF and its derivatives were optimized using LigPrep and docked to a grid centralized on Trp214 using extra precision glide docking. The Binding free energy of complexes was calculated using molecular mechanics/generalized born surface area (MM-GBSA). CPF and CPFD-225 have glide scores of - 3.08 and - 6.152 kcal/mol, respectively, with human serum albumin and ΔG bind for CPF (- 33.041817 kcal/mol) (- 52.825 kcal/mol) for CPF-D225. The top ten CPF derivatives showed at least ninefold better binding free energy than the CPF proposed for polyclonal antibody production. Subsequently, molecular docking studies revealed that CPF and its derivatives could bind to human serum albumin (HSA). Furthermore, using the Desmond package, a 100-ns molecular dynamics (MD) simulation was performed on the potential binding site. The final systems of CPF-HSA and CPF-222D complexes consist of 76,014 and 76,026 atoms, respectively. The physical stability of both the systems (CPF-HSA and CPF-222D) was analyzed by considering the overall potential energy, RMSF, RMSD, Hydrophobic interactions, and water-mediated patterns, which showed total energy of - 141,610 kcal/mol and - 140,150 kcal/mol, respectively. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-022-03344-7.
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Affiliation(s)
- Noor Saba Khan
- Biomedical Informatics Centre, ICMR-National Institute of Pathology, New Delhi, 110029 India
- Department of Biotechnology, Invertis University, Bareilly, Uttar Pradesh 243123 India
| | | | - Saumya Choudhary
- Biomedical Informatics Centre, ICMR-National Institute of Pathology, New Delhi, 110029 India
- Department of Molecular and Cellular Engineering, Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad, 211007 India
| | - Sandeep Swargam
- Genomics and Epidemiology Division, INSACOG Unit, National Centre for Disease Control, New Delhi, 110054 India
| | - Arun Kumar Jain
- Biomedical Informatics Centre, ICMR-National Institute of Pathology, New Delhi, 110029 India
- Environmental Toxicology Laboratory, ICMR-National Institute of Pathology, New Delhi, India
| | - Nitesh Kumar Poddar
- Department of Biotechnology, Invertis University, Bareilly, Uttar Pradesh 243123 India
- Department of Biosciences, Manipal University Jaipur, Jaipur-Ajmer Express Highway, Dehmi Kalan, Near GVK Toll Plaza, Jaipur, Rajasthan 303007 India
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Khan NS, Pradhan D, Choudhary S, Saxena P, Poddar NK, Jain AK. Immunoassay-based approaches for development of screening of chlorpyrifos. J Anal Sci Technol 2021. [DOI: 10.1186/s40543-021-00282-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
AbstractChlorpyrifos (CPF) is an extensively used organophosphate pesticide for crop protection. However, there are concerns of it contaminating the environment and human health with estimated three lakh deaths annually. Detection of CPF in blood samples holds significance to avoid severe health outcomes due to continuous exposure. The most common techniques for CPF detection are Gas chromatography (GC) and high-performance liquid chromatography (HPLC). However, these techniques might not be feasible at the community healthcare level due to high-cost instrumentation, time-consuming sample preparation protocol and skilled analysts. Therefore, rapid, effective and economical methods such as immunoassay would be imperative for CPF detection in biological samples. The vital step in immunoassay development is the design of a potent immunogen from non-immunogenic molecules. The molecular modelling protocol could assist in redesigning known CPF linkers and inserting them at different substitutable positions of CPF to get distinctive CPF derivatives. Molecular docking and binding free energy analysis can be used to identify the CPF derivatives having a better binding affinity with carrier protein compared to CPF. The top-ranked CPF derivatives based on docking score and binding energy could be ideal for synthesis and immunogen development. The present review will comprehend technological trends in immunoassay kits for detecting chlorpyrifos from biological samples.
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Kalogiouri NP, Samanidou VF. Recent Trends in the Development of Green Microextraction Techniques for the Determination of Hazardous Organic Compounds in Wine. CURR ANAL CHEM 2019. [DOI: 10.2174/1573411015666190328185337] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Background:The sample preparation is the most crucial step in the analytical method development. Taking this into account, it is easily understood why the domain of sample preparation prior to detection is rapidly developing. Following the modern trends towards the automation, miniaturization, simplification and minimization of organic solvents and sample volumes, green microextraction techniques witness rapid growth in the field of food quality and safety. In a globalized market, it is essential to face the consumers need and develop analytical methods that guarantee the quality of food products and beverages. The strive for the accurate determination of organic hazards in a famous and appreciated alcoholic beverage like wine has necessitated the development of microextraction techniques.Objective:The objective of this review is to summarize all the recent microextraction methodologies, including solid phase extraction (SPE), solid phase microextraction (SPME), liquid-phase microextraction (LPME), dispersive liquid-liquid microextraction (DLLME), stir bar sorptive extraction (SBSE), matrix solid-phase dispersion (MSPD), single-drop microextraction (SDME) and dispersive solid phase extraction (DSPE) that were developed for the determination of hazardous organic compounds (pesticides, mycotoxins, colorants, biogenic amines, off-flavors) in wine. The analytical performance of the techniques is evaluated and their advantages and limitations are discussed.Conclusion:An extensive investigation of these techniques remains vital through the development of novel strategies and the implication of new materials that could upgrade the selectivity for the extraction of target analytes.
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Affiliation(s)
- Natasa P. Kalogiouri
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki GR 54124, Greece
| | - Victoria F. Samanidou
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki GR 54124, Greece
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Shirani M, Haddadi H, Rezaee M, Semnani A, Habibollahi S. Solid-Phase Extraction Combined with Dispersive Liquid–Liquid Microextraction for the Simultaneous Determination of Deltamethrin and Permethrin in Honey by Gas Chromatography–Mass Spectrometry. FOOD ANAL METHOD 2016. [DOI: 10.1007/s12161-016-0455-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Wei JC, Hu J, Cao JL, Wan JB, He CW, Hu YJ, Hu H, Li P. Sensitive Detection of Organophosphorus Pesticides in Medicinal Plants Using Ultrasound-Assisted Dispersive Liquid-Liquid Microextraction Combined with Sweeping Micellar Electrokinetic Chromatography. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:932-940. [PMID: 26758524 DOI: 10.1021/acs.jafc.5b05369] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A simple, rapid, and sensitive method using ultrasound-assisted dispersive liquid-liquid microextraction (UA-DLLME) combined with sweeping micellar electrokinetic chromatography (sweeping-MEKC) has been developed for the determination of nine organophosphorus pesticides (chlorfenvinphos, parathion, quinalphos, fenitrothion, azinphos-ethyl, parathion-methyl, fensulfothion, methidathion, and paraoxon). The important parameters that affect the UA-DLLME and sweeping efficiency were investigated. Under the optimized conditions, the proposed method provided 779.0-6203.5-fold enrichment of the nine pesticides compared to the normal MEKC method. The limits of detection ranged from 0.002 to 0.008 mg kg(-1). The relative standard deviations of the peak area ranged from 1.2 to 6.5%, indicating the good repeatability of the method. Finally, the developed UA-DLLME-sweeping-MEKC method has been successfully applied to the analysis of the investigated pesticides in several medicinal plants, including Lycium chinense, Dioscorea opposite, Codonopsis pilosula, and Panax ginseng, indicating that this method is suitable for the determination of trace pesticide residues in real samples with complex matrices.
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Affiliation(s)
- Jin-Chao Wei
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau , Macau 999078, People's Republic of China
| | - Ji Hu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau , Macau 999078, People's Republic of China
| | - Ji-Liang Cao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau , Macau 999078, People's Republic of China
| | - Jian-Bo Wan
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau , Macau 999078, People's Republic of China
| | - Cheng-Wei He
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau , Macau 999078, People's Republic of China
| | - Yuan-Jia Hu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau , Macau 999078, People's Republic of China
| | - Hao Hu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau , Macau 999078, People's Republic of China
| | - Peng Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau , Macau 999078, People's Republic of China
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Guo J, Wong JXH, Cui C, Li X, Yu HZ. A smartphone-readable barcode assay for the detection and quantitation of pesticide residues. Analyst 2015; 140:5518-25. [DOI: 10.1039/c5an00874c] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A qualitative assay for pesticide (methyl parathion) residues has been designed as a smartphone-readable barcode.
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Affiliation(s)
- Juan Guo
- Key Laboratory of Advanced Transducers and Intelligent Control Systems (Ministry of Education and Shanxi Province)
- College of Physics and Optoelectronic Engineering
- Taiyuan University of Technology
- Shanxi 030024
- P.R. China
| | | | - Caie Cui
- Key Laboratory of Advanced Transducers and Intelligent Control Systems (Ministry of Education and Shanxi Province)
- College of Physics and Optoelectronic Engineering
- Taiyuan University of Technology
- Shanxi 030024
- P.R. China
| | - Xiaochun Li
- Key Laboratory of Advanced Transducers and Intelligent Control Systems (Ministry of Education and Shanxi Province)
- College of Physics and Optoelectronic Engineering
- Taiyuan University of Technology
- Shanxi 030024
- P.R. China
| | - Hua-Zhong Yu
- Key Laboratory of Advanced Transducers and Intelligent Control Systems (Ministry of Education and Shanxi Province)
- College of Physics and Optoelectronic Engineering
- Taiyuan University of Technology
- Shanxi 030024
- P.R. China
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dell'Oro D, Casamassima F, Gesualdo G, Iammarino M, Mambelli P, Nardelli V. Determination of pyrethroids in chicken egg samples: development and validation of a confirmatory analytical method by gas chromatography/mass spectrometry. Int J Food Sci Technol 2013. [DOI: 10.1111/ijfs.12441] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Daniela dell'Oro
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata; Via Manfredonia 20 Foggia 71121 Italy
| | - Francesco Casamassima
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata; Via Manfredonia 20 Foggia 71121 Italy
| | - Giuseppe Gesualdo
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata; Via Manfredonia 20 Foggia 71121 Italy
| | - Marco Iammarino
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata; Via Manfredonia 20 Foggia 71121 Italy
| | - Paolo Mambelli
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata; Via Manfredonia 20 Foggia 71121 Italy
| | - Valeria Nardelli
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata; Via Manfredonia 20 Foggia 71121 Italy
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Yáñez KP, Martín MT, Bernal JL, Nozal MJ, Bernal J. Determination of spinosad at trace levels in bee pollen and beeswax with solid-liquid extraction and LC-ESI-MS. J Sep Sci 2013; 37:204-10. [DOI: 10.1002/jssc.201301069] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2013] [Revised: 11/05/2013] [Accepted: 11/05/2013] [Indexed: 11/06/2022]
Affiliation(s)
- Karen P. Yáñez
- IU CINQUIMA; Analytical Chemistry Group; University of Valladolid; Valladolid Spain
| | - María T. Martín
- IU CINQUIMA; Analytical Chemistry Group; University of Valladolid; Valladolid Spain
| | - José L. Bernal
- IU CINQUIMA; Analytical Chemistry Group; University of Valladolid; Valladolid Spain
| | - María J. Nozal
- IU CINQUIMA; Analytical Chemistry Group; University of Valladolid; Valladolid Spain
| | - José Bernal
- IU CINQUIMA; Analytical Chemistry Group; University of Valladolid; Valladolid Spain
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Li Z, Zhang S, Yin X, Wang C, Wang Z. Micellar Electrokinetic Chromatographic Determination of Triazine Herbicides in Water Samples. J Chromatogr Sci 2013; 52:926-31. [DOI: 10.1093/chromsci/bmt124] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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11
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Rezaee M, Mashayekhi HA, Saleh A, Abdollahzadeh Y, Naeeni MH, Fattahi N. Determination of abamectin in citrus fruits using SPE combined with dispersive liquid-liquid microextraction and HPLC-UV detection. J Sep Sci 2013; 36:2629-34. [DOI: 10.1002/jssc.201300356] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2013] [Revised: 05/13/2013] [Accepted: 05/21/2013] [Indexed: 11/10/2022]
Affiliation(s)
- Mohammad Rezaee
- Nuclear Fuel Cycle Research School, Nuclear Science & Technology Research Institute; Atomic Energy Organization of Iran; Tehran Iran
| | | | - Abolfazl Saleh
- Department of Marine Living Resources; Iranian National Institute for Oceanography; Tehran Iran
| | | | | | - Nazir Fattahi
- Department of Chemistry; Razi University; Kermanshah Iran
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Inoue K, Prayoonhan N, Tsutsui H, Sakamoto T, Nishimura M, Toyo'oka T. Use of chiral derivatization for the determination of dichlorprop in tea samples by ultra performance LC with fluorescence detection. J Sep Sci 2013; 36:1356-61. [DOI: 10.1002/jssc.201201187] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2012] [Revised: 01/28/2013] [Accepted: 01/28/2013] [Indexed: 11/10/2022]
Affiliation(s)
- Koichi Inoue
- Laboratory of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical Sciences; University of Shizuoka; Suruga-ku Shizuoka Japan
| | - Nuntawat Prayoonhan
- Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences; Khon Kaen University; Amphur Maung Khon Kaen Thailand
| | - Haruhito Tsutsui
- Laboratory of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical Sciences; University of Shizuoka; Suruga-ku Shizuoka Japan
| | - Tasuku Sakamoto
- Laboratory of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical Sciences; University of Shizuoka; Suruga-ku Shizuoka Japan
| | - Maiko Nishimura
- Laboratory of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical Sciences; University of Shizuoka; Suruga-ku Shizuoka Japan
| | - Toshimasa Toyo'oka
- Laboratory of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical Sciences; University of Shizuoka; Suruga-ku Shizuoka Japan
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Hsu CH, Hu CC, Chiu TC. Analysis of carbofuran, carbosulfan, isoprocarb, 3-hydroxycarbofuran, and 3-ketocarbofuran by micellar electrokinetic chromatography. J Sep Sci 2012; 35:1359-64. [DOI: 10.1002/jssc.201101108] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Chien-Hua Hsu
- Department of Applied Science, National Taitung University; Taitung; Taiwan
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Vichapong J, Burakham R, Srijaranai S, Grudpan K. Sequential injection-bead injection-lab-on-valve coupled to high-performance liquid chromatography for online renewable micro-solid-phase extraction of carbamate residues in food and environmental samples. J Sep Sci 2011; 34:1574-81. [DOI: 10.1002/jssc.201100075] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2011] [Revised: 03/30/2011] [Accepted: 03/31/2011] [Indexed: 11/05/2022]
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Yin XF, Li Z, Zhang SH, Wu CX, Wang C, Wang Z. Determination of strychnine and brucine in traditional Chinese medicine preparations by capillary zone electrophoresis with micelle to solvent stacking. CHINESE CHEM LETT 2011. [DOI: 10.1016/j.cclet.2010.10.044] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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A Fast, Simple, and Reliable High-Performance Liquid Chromatography (HPLC) Method for Determining Abamectin Residues in Vegetables and Fruits. FOOD ANAL METHOD 2010. [DOI: 10.1007/s12161-010-9153-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Pressurised liquid extraction and capillary electrophoresis–mass spectrometry for the analysis of pesticide residues in fruits from Valencian markets, Spain. Food Chem 2010. [DOI: 10.1016/j.foodchem.2009.11.071] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Mikelova R, Prokop Z, Stejskal K, Adam V, Beklova M, Trnkova L, Kulichova B, Horna A, Chaloupkova R, Damborsky J, Kizek R. Enzymatic Reaction Coupled with Flow-Injection Analysis with Charged Aerosol, Coulometric, or Amperometric Detection for Estimation of Contamination of the Environment by Pesticides. Chromatographia 2008. [DOI: 10.1365/s10337-008-0590-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Ravelo-Pérez LM, Hernández-Borges J, Borges-Miquel TM, Rodríguez-Delgado MA. Multiple pesticide analysis in wine by MEKC combined with solid-phase microextraction and sample stacking. Electrophoresis 2008; 28:4072-81. [PMID: 17957661 DOI: 10.1002/elps.200700251] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
In this work, a new method for the determination in white wines of 12 pesticides widely used in vine cultivars (namely, carbendazim, pirimicarb, metalaxyl, pyrimethanil, procymidone, nuarimol, azoxystrobin, tebufenozide, fenarimol, benalaxyl, penconazole, and tetradifon) using solid-phase microextraction (SPME) and MEKC with diode-array detection (DAD) was developed. The MEKC buffer consisted of 100 mM sodium tetraborate and 30 mM SDS at pH 8.5 with 6% v/v 1-propanol. Reversed-electrode polarity stacking mode (REPSM) was applied as on-line preconcentration strategy. In order to carry out an effective and sensitive determination of these pesticides in wine samples, an off-line SPME procedure was optimized by means of an experimental design. After studying the extraction performance of different SPME coatings, PDMS/divinylbenzene (PDMS/DVB) fibers were found the most appropriate for the extraction of most of these pesticides. Carbendazim and metalaxyl could not be extracted from wine samples. Calibration curves for extracted standards and fortified white wines were studied in order to determine the presence of a matrix effect. The combination of both preconcentration procedures (SPME and REPSM) allowed the determination of ten of these pesticides in white wines at concentrations between 0.054 and 0.113 mg/L. (i.e., levels well below the maximum residue limits (MRLs) allowed for these compounds in wine grapes). Ten homemade wines were they analyzed with the optimized method demonstrating the usefulness of the proposed procedure.
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Affiliation(s)
- Lidia M Ravelo-Pérez
- Department of Analytical Chemistry, Nutrition and Food Science, University of La Laguna, La Laguna, Tenerife, Canary Islands, Spain
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Ravelo-Pérez LM, Hernández-Borges J, Borges-Miquel TM, Rodríguez-Delgado MA. Pesticide analysis in tomatoes by solid-phase microextraction and micellar electrokinetic chromatography. J Chromatogr A 2008; 1185:151-4. [PMID: 18280487 DOI: 10.1016/j.chroma.2008.01.069] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2007] [Revised: 01/21/2008] [Accepted: 01/23/2008] [Indexed: 11/19/2022]
Abstract
The analysis of a group of seven pesticides (i.e. six fungicides: pyrimethanil, procymidone, nuarimol, fenarimol, benalaxyl and penconazole and one insecticide: pirimicarb) in tomato samples by micellar electrokinetic chromatography is investigated. For this purpose, reversed electrode polarity stacking mode and solid-phase microextraction (SPME) have been used as on-line and off-line preconcentration procedures, respectively. Tomato samples were first homogenized and extracted with acetone. After suitable evaporation and reconstitution of the extract in water, a SPME procedure using poly(dimethylsiloxane)/divinylbenzene fibers was used. Due to the strong influence of the sample matrix in the extraction, a matrix matched calibration of spiked tomato samples was developed. The method was found to be linear between 0.5 and 2.5 mg/kg. Limits of detection achieved are below the maximum residue limits established by the European Union and Spain legislation as well as by the Codex Alimentarius (except for penconazole). The potential of the method was demonstrated by analyzing 12 tomato samples (of ecological and non-ecological production) taken from regional cultivars. No residues of the selected pesticides were detected in any of the samples.
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Affiliation(s)
- Lidia M Ravelo-Pérez
- Department of Analytical Chemistry, Nutrition and Food Science, University of La Laguna, Avenida Astrofísico Fco. Sánchez s/n, 38071 La Laguna, Tenerife, Canary Islands, Spain
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García-Cañas V, Cifuentes A. Recent advances in the application of capillary electromigration methods for food analysis. Electrophoresis 2008; 29:294-309. [DOI: 10.1002/elps.200700438] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Dabek-Zlotorzynska E, Celo V, Yassine MM. Recent advances in CE and CEC of pollutants. Electrophoresis 2008; 29:310-23. [DOI: 10.1002/elps.200700510] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Ravelo-Pérez LM, Hernández-Borges J, Borges-Miquel TM, Rodríguez-Delgado MÁ. Pesticide analysis in rose wines by micellar electrokinetic chromatography. J Sep Sci 2007; 30:3240-6. [DOI: 10.1002/jssc.200700288] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Hernández Borges J, Ravelo-Pérez LM, Hernández-Suárez EM, Carnero A, Rodríguez-Delgado MÁ. Determination of Abamectin Residues in Avocados by Microwave-Assisted Extraction and HPLC with Fluorescence Detection. Chromatographia 2007. [DOI: 10.1365/s10337-007-0442-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Boyce MC. Determination of additives and organic contaminants in food by CE and CEC. Electrophoresis 2007; 28:4046-62. [DOI: 10.1002/elps.200700280] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Ravelo-Pérez LM, Hernández-Borges J, Cifuentes A, Rodríguez-Delgado MA. MEKC combined with SPE and sample stacking for multiple analysis of pesticides in water samples at the ng/L level. Electrophoresis 2007; 28:1805-14. [PMID: 17476718 DOI: 10.1002/elps.200600526] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In this work, a new multiresidue analytical method based on MEKC with UV detection combined with SPE as off-line preconcentration strategy, and reversed-electrode polarity stacking mode (REPSM) as on-line stacking procedure, has been developed for the monitoring of 12 pesticides (carbendazim, pirimicarb, metalaxyl, pyrimethanil, procymidone, nuarimol, azoxystrobin, tebufenozide, fenarimol, benalaxyl, penconazole, and tetradifon) that are currently being used in the Canary Islands (Spain). The optimized MEKC buffer, consisting of 100 mM sodium tetraborate and 30 mM SDS at pH 8.5 with 6% v/v 1-propanol, provided baseline resolution of the 12 pesticides in less than 20 min. The developed method was applied to the analysis of mineral, stagnant, and tap water samples. The proposed SPE-REPSM-MEKC-UV method showed high extraction efficiencies with detection limits (LODs) at the low ng/L level providing LOD values down to 64 ng/L for these real samples.
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Affiliation(s)
- Lidia M Ravelo-Pérez
- Department of Analytical Chemistry, Nutrition and Food Science, University of La Laguna, La Laguna, Tenerife, Canary Islands, Spain
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Hernández-Borges J, Ravelo-Pérez LM, Hernández-Suárez EM, Carnero A, Rodríguez-Delgado MA. Analysis of abamectin residues in avocados by high-performance liquid chromatography with fluorescence detection. J Chromatogr A 2007; 1165:52-7. [PMID: 17681518 DOI: 10.1016/j.chroma.2007.07.033] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2007] [Revised: 07/16/2007] [Accepted: 07/19/2007] [Indexed: 11/24/2022]
Abstract
In this work an analytical method for the determination of abamectin residues in avocados is developed using high-performance liquid chromatography (HPLC) with fluorescence (FL) detection. A pre-column derivatization with trifluoroacetic anhydride (TFAA) and N-methylimidazole (NMIM) was carried out. The mobile phase consisted of water, methanol and acetonitrile (5:47.5:47.5 v/v/v) and was pumped at a rate of 1 mL/min (isocratic elution). The fluorescence detector was set at an excitation wavelength of 365 nm and an emission wavelength of 470 nm. Homogenized avocado samples were extracted twice with acetonitrile:water 8:2 (v/v) and cleaned using C(18) solid-phase extraction (SPE) cartridges. Recovery values were in the range 87-98% with RSD values lower than 13%. The limits of detection (LODs) and quantification (LOQs) of the whole method were 0.001 and 0.003 mg/kg, respectively. These values are lower than the maximum residue limit (MRL) established by the European Union (EU) and the Spanish legislation in avocado samples.
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Affiliation(s)
- Javier Hernández-Borges
- Departamento de Protección Vegetal, Instituto Canario de Investigaciones Agrarias, Apdo. 60, 38200 La Laguna, Tenerife, Islas Canarias, Spain
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