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Sahyoun W, Net S, López-Maldonado EA, Baroudi M, Ouddane B. Occurrence and health risk estimate of organochlorine pesticides in fruits and vegetables matrices. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-33823-8. [PMID: 38833048 DOI: 10.1007/s11356-024-33823-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 05/22/2024] [Indexed: 06/06/2024]
Abstract
Occurrence of 20 organochlorine pesticides (OCPs) in 60 organic and non-organic fruits and vegetables matrices was undertaken using QuEChERS Method EN 15662 for sample preparation analyzed by gas chromatography-mass spectrometry (GC-MS/MS). The procedural method was validated by spiking the OCP standard solutions at three fortified levels at 10, 50, and 100 µg/kg wet weight (ww) to the real matrix of fruit and vegetable with good recovery ranging from 75 to 108% with relative standard deviation (RSD) ≤ 11%, and the limits of detection and quantification (LODs and LOQs) were 0.002-0.02 μg/kg and 0.004-0.1 μg/kg ww, respectively. The assessment of health risks associated with pesticide residues through consumption of vegetables and fruits and the effect of washing and peeling on concentration of various pesticides were also studied. The results showed that the concentration levels of 60% of samples were lower than the LOQs, while the rest was contaminated by OCP residues. Organic fruits and vegetables showed the absence of OCPs, while several of the studied compounds were detected from conventional agriculture. Skin removal (peeling) was the most effective strategy to eliminate or decrease pesticide residues, and should be one of the solutions to reduce the health impact of pesticides in fruits and vegetables. The analysis of health risk assessment was based on the use of the estimated average daily intake (EDI), hazard index (HI), and hazard ratio (HR) for individuals in two weight categories: children (weighing 16.7 kg) and adults (weighing 60 kg). The HI values were less than 1 suggesting that there was no probable non-carcinogenic health effect, except for heptachlor for children (HI of 1.285). However, the values of HR revealed that children were more susceptible to the carcinogenic health effect associated with consuming contaminated vegetables.
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Affiliation(s)
- Wissam Sahyoun
- CNRS, UMR 8516 - LASIRE, Laboratoire Avancé de Spectroscopie Pour Les Interactions, La Réactivité Et L'Environnement, Univ. Lille, 59000, Lille, France
- Faculté de Santé Publique Section III, Laboratoire Des Sciences de L'Eau Et de L'Environnement (L.S.E.E), Université Libanaise, Tripoli, Lebanon
| | - Sopheak Net
- CNRS, UMR 8516 - LASIRE, Laboratoire Avancé de Spectroscopie Pour Les Interactions, La Réactivité Et L'Environnement, Univ. Lille, 59000, Lille, France.
| | | | - Moomen Baroudi
- Faculté de Santé Publique Section III, Laboratoire Des Sciences de L'Eau Et de L'Environnement (L.S.E.E), Université Libanaise, Tripoli, Lebanon
| | - Baghdad Ouddane
- CNRS, UMR 8516 - LASIRE, Laboratoire Avancé de Spectroscopie Pour Les Interactions, La Réactivité Et L'Environnement, Univ. Lille, 59000, Lille, France
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Fabjanowicz M, Różańska A, Abdelwahab NS, Pereira-Coelho M, Haas ICDS, Madureira LADS, Płotka-Wasylka J. An analytical approach to determine the health benefits and health risks of consuming berry juices. Food Chem 2024; 432:137219. [PMID: 37647705 DOI: 10.1016/j.foodchem.2023.137219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 07/30/2023] [Accepted: 08/17/2023] [Indexed: 09/01/2023]
Abstract
Food products composition analysis is a prerequisite for verification of product quality, fulfillment of regulatory enforcements, checking compliance with national and international food standards, contracting specifications, and nutrient labeling requirements and providing quality assurance for use of the product for the supplementation of other foods. These aspects also apply to the berry fruit and berry juice. It also must be noted that even though fruit juices are generally considered healthy, there are many risks associated with mishandling both fruits and juices themselves. The review gathers information related with the health benefits and risk associated with the consumption of berry fruit juices. Moreover, the focus was paid to the quality assurance of berry fruit juice. Thus, the analytical methods used for determination of compounds influencing the sensory and nutritional characteristics of fruit juice as well as potential contaminants or adulterations.
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Affiliation(s)
- Magdalena Fabjanowicz
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza Street, 80-233 Gdańsk, Poland.
| | - Anna Różańska
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza Street, 80-233 Gdańsk, Poland
| | - Nada S Abdelwahab
- Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
| | - Marina Pereira-Coelho
- Departament of Chemistry, Federal University of Santa Catarina, Des. Vitor Lima Av., Trindade, 88040-900 Florianópolis, SC, Brazil
| | - Isabel Cristina da Silva Haas
- Department of Food Science and Technology, Federal University of Santa Catarina, Admar Gonzaga Rd., 1346, Itacorubi, 88034-001 Florianópolis, SC, Brazil
| | | | - Justyna Płotka-Wasylka
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza Street, 80-233 Gdańsk, Poland; BioTechMed Center, Gdańsk University of Technology, 11/12 Narutowicza Street, 80-233 Gdańsk, Poland.
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García-Vara M, Postigo C, Palma P, Bleda MJ, López de Alda M. QuEChERS-based analytical methods developed for LC-MS/MS multiresidue determination of pesticides in representative crop fatty matrices: Olives and sunflower seeds. Food Chem 2022; 386:132558. [PMID: 35339080 DOI: 10.1016/j.foodchem.2022.132558] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 02/23/2022] [Accepted: 02/23/2022] [Indexed: 11/18/2022]
Abstract
Oilseed crops are greatly extended all over the world. Their high fat content can interfere during pesticide multiresidue analysis through liquid chromatography-tandem mass spectrometry (LC-MS/MS). This work aimed at overcoming this issue by developing and validating two QuEChERS-based methods for LC-MS/MS determination of 42 pesticides in two fatty food matrices: olives and sunflower seeds. Optimization of the extraction method was achieved following a 26-2 fractional factorial design in a highly cost-effective way. Validation of the multi-residue methods demonstrated improved limits of detection, below the established maximum residue levels (MRLs) for almost all compounds, good precision, and trueness, in compliance with SANTE guidelines. Application of these methods to the analysis of real samples from the Iberian Peninsula showed the presence of some pesticides of relevant environmental concern, including four compounds contained in the Pesticide Action Network International list of highly hazardous pesticides, found at levels between 0.03 ng/g and 104 ng/g.
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Affiliation(s)
- Manuel García-Vara
- Water, Environmental and Food Chemistry Unit (ENFOCHEM), Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), C/ Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Cristina Postigo
- Water, Environmental and Food Chemistry Unit (ENFOCHEM), Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), C/ Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Patricia Palma
- Department of Technologies and Applied Sciences, Polytechnic Institute of Beja, Portugal; Institute of Earth Sciences, University of Évora, Évora, Portugal
| | - María José Bleda
- Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18-26, E-08034 Barcelona, Spain
| | - Miren López de Alda
- Water, Environmental and Food Chemistry Unit (ENFOCHEM), Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), C/ Jordi Girona 18-26, 08034 Barcelona, Spain.
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Abstract
Developing effective and green methods for food analysis and separation has become an urgent issue regarding the ever-increasing concern of food quality and safety. Ionic liquids (ILs) are a new chemical medium and soft functional material developed under the framework of green chemistry and possess many unique properties, such as low melting points, low-to-negligible vapor pressures, excellent solubility, structural designability and high thermal stability. Combining ILs with extraction techniques not only takes advantage of ILs but also overcomes the disadvantages of traditional extraction methods. This subject has attracted intensive research efforts recently. Here, we present a brief review of the current research status and latest developments regarding the application of IL-assisted microextraction, including dispersive liquid–liquid microextraction (DLLME) and solid-phase microextraction (SPME), in food analysis and separation. The practical applications of ILs in determining toxic and harmful substances in food specimens with quite different natures are summarized and discussed. The critical function of ILs and the advantages of IL-based microextraction techniques over conventional extraction techniques are discussed in detail. Additionally, the recovery of ILs using different approaches is also presented to comply with green analytical chemistry requirements.
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Erdem P, Tağaç AA, Bozkurt SS, Merdivan M. Chitosan and dicationic ionic liquid intercalated clay-coated solid-phase microextraction fiber for determination of sixteen polycyclic aromatic hydrocarbons in coffee and tea samples. Talanta 2021; 235:122764. [PMID: 34517625 DOI: 10.1016/j.talanta.2021.122764] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 07/28/2021] [Accepted: 07/29/2021] [Indexed: 11/18/2022]
Abstract
In the present study, solid-phase microextraction (SPME) fiber was prepared by coating clay (MMT)-chitosan (CH) and dicationic ionic liquid (DIL) onto the stainless-steel wire step by step. The characterization of fibers was performed by Fourier transform infrared spectroscopy, thermal analysis, x-ray diffraction analysis, and scanning electron microscopy. The prepared fibers were evaluated for separation and determination of 16 polycyclic aromatic hydrocarbons (PAHs) in coffee and tea samples in headspace- and direct immersion-SPME by coupling with gas chromatography/mass spectrometry. The analytical performance of MMT/CH/DIL fibers was carried out for the extraction of PAHs and compared with the performance of carboxen/polydimethylsiloxane (CAR/PDMS) and divinylbenzene/CAR/PDMS (DVB/CAR/PDMS) fibers under optimized conditions. The wider linear ranges between 0.001 and 25 μg L-1 with a coefficient of determination above 0.9962, low limits of detection between 0.0001 and 0.05 μg L-1 and good intra-day repeatability from 2.45 to 6.48 % and fiber-to-fiber reproducibility from 3.19 % to 8.82 % were obtained for all PAHs in both methods with MMT/CH/octyl (O)-DIL fiber. The extraction recoveries of coffee and tea samples ranged from 87.5 to 112 % using the MMT/CH/O-DIL fiber in both SPME methods.
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Affiliation(s)
- Pelin Erdem
- Chemistry Department, Dokuz Eylul University, Tınaztepe Campus, 35390, Izmir, Turkey
| | - Aylin Altınışık Tağaç
- Chemistry Department, Dokuz Eylul University, Tınaztepe Campus, 35390, Izmir, Turkey
| | - Serap Seyhan Bozkurt
- Chemistry Department, Dokuz Eylul University, Tınaztepe Campus, 35390, Izmir, Turkey
| | - Melek Merdivan
- Chemistry Department, Dokuz Eylul University, Tınaztepe Campus, 35390, Izmir, Turkey.
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Altınışık Tağaç A, Erdem P, Seyhan Bozkurt S, Merdivan M. Utilization of montmorillonite nanocomposite incorporated with natural biopolymers and benzyl functionalized dicationic imidazolium based ionic liquid coated fiber for solid-phase microextraction of organochlorine pesticides prior to GC/MS and GC/ECD. Anal Chim Acta 2021; 1185:339075. [PMID: 34711316 DOI: 10.1016/j.aca.2021.339075] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 09/10/2021] [Accepted: 09/15/2021] [Indexed: 11/30/2022]
Abstract
A novel montmorillonite clay (MMT) bionanocomposite modified with chitosan (CH), carboxymethyl cellulose (CMC), and benzylimidazolium based dicationic ionic liquid with tetraethylene glycol linker (DIL) was fabricated on stainless steel wire by in situ process. The MMT-CH-CMC-DIL coated solid-phase microextraction (SPME) fiber was examined for the determination of organochlorine pesticides (OCPs) in real samples by HS-SPME-GC method using mass spectrometry (MS) and electron capture detector (ECD). Under optimized conditions, the proposed method exhibited low limits of detection (0.5 ng L-1 with MS and 0.1 ng L-1 with ECD detection), good linearities (R2 = 0.9972-0.9993 with MS and 0.9987-0.9998 with ECD detection), favorable single-fiber repeatability, and fiber-to-fiber reproducibility (less than 8.2% and 9.9% for both types of detection) and high reusability around 125 cycles. Recovery studies were carried out for OCPs in tap water, green tea, and milk samples to verify the applicability of the developed SPME-GC method.
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Affiliation(s)
- Aylin Altınışık Tağaç
- Chemistry Department, Dokuz Eylul University, Tınaztepe Campus, 35390, Izmir, Turkey
| | - Pelin Erdem
- Chemistry Department, Dokuz Eylul University, Tınaztepe Campus, 35390, Izmir, Turkey
| | - Serap Seyhan Bozkurt
- Chemistry Department, Dokuz Eylul University, Tınaztepe Campus, 35390, Izmir, Turkey
| | - Melek Merdivan
- Chemistry Department, Dokuz Eylul University, Tınaztepe Campus, 35390, Izmir, Turkey.
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Ionic liquids in extraction techniques: Determination of pesticides in food and environmental samples. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116396] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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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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Processes and Properties of Ionic Liquid-Modified Nanofiller/Polymer Nanocomposites—A Succinct Review. Processes (Basel) 2021. [DOI: 10.3390/pr9030480] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Ionic liquids can typically be synthesized via protonation, alkylation, metathesis, or neutralization reactions. The many types of ionic liquids have increased their attractiveness to researchers for employment in various areas, including in polymer composites. Recently, ionic liquids have been employed to modify nanofillers for the fabrication of polymer nanocomposites with improved physicochemical properties. In this succinct review, four types of imidazolium-based ionic liquids that are employed as modifiers—specifically alkylimidazolium halide, alkylimidazolium hexafluorophosphate, alkylimidazolium tetrafluoroborate, and alkylimidazolium bistriflimide—are reviewed. Additionally, three types of ionic liquid-modified nanofiller/polymer nanocomposites—namely ionic liquid-nanofiller/thermoplastic nanocomposites, ionic liquid-nanofiller/elastomer nanocomposites, and ionic liquid-nanofiller/thermoset nanocomposites—are described as well. The effect of imidazolium-based ionic liquids on the thermo-mechanico-chemical properties of the polymer nanocomposites is also succinctly reviewed. This review can serve as an initial guide for polymer composite researchers in modifying nanofillers by means of ionic liquids for improving the performance of polymer nanocomposites.
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Tashakkori P, Tağaç AA, Merdivan M. Fabrication of montmorillonite/ionic liquid composite coated solid-phase microextraction fibers for determination of phenolic compounds in fruit juices by gas chromatography and liquid chromatography. J Chromatogr A 2020; 1635:461741. [PMID: 33253998 DOI: 10.1016/j.chroma.2020.461741] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 11/18/2020] [Accepted: 11/20/2020] [Indexed: 11/30/2022]
Abstract
Novel montmorillonite composites including ionic liquid were prepared and utilized as coating materials for solid phase microextraction fibers. Ionic liquids containing amino terminated imidazolium cations with methyl and benzyl groups and hydrophobic anions (bis(trifluoromethylsulfonyl)imide) and hydrophilic anions (bromide and tetrafluoroborate) were intercalated to KSF-montmorillonite using stainless steel wire as support by using the layer-by-layer technique. After optimization of experimental conditions, solid phase microextraction (SPME) coupled to gas chromatography/mass spectrometry (SPME-GC/MS) after derivatization by silylation and high performance liquid chromatography/diode array detector (SPME-HPLC/DAD) were developed for the determination of 16 phenolic compounds. The developed SPME-GC/MS method had wider linearity and lower limit of detection than the developed SPME-HPLC/DAD method with similar repeatability (for 5 runs, less than 4.2 %) for a single fiber. The percentage of the variance between two different fibers was less than 6.0 % in both methods. The developed SPME methods were applied successfully to fresh fruit juices and the relative recoveries and the repeatabilities from spiked fruit juice samples were satisfactorily achieved. The results obtained with both chromatographic methods were in good agreement with each other.
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Affiliation(s)
- Paniz Tashakkori
- Dokuz Eylul University, Graduate School of Natural and Applied Science, Tınaztepe Campus, 35160, Izmir, Turkey
| | - Aylin Altınışık Tağaç
- Dokuz Eylul University, Chemistry Department, Tınaztepe Campus, 35390, Izmir, Turkey
| | - Melek Merdivan
- Dokuz Eylul University, Chemistry Department, Tınaztepe Campus, 35390, Izmir, Turkey.
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Feng J, Loussala HM, Han S, Ji X, Li C, Sun M. Recent advances of ionic liquids in sample preparation. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115833] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Polythiophene as highly efficient sorbent for microextraction in packed sorbent for determination of steroids from bovine milk samples. Microchem J 2020. [DOI: 10.1016/j.microc.2019.104521] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Guo X, Bai H, Ma X, Li J, Ren Y, Ouyang Z, Ma Q. Online coupling of an electrochemically fabricated solid-phase microextraction probe and a miniature mass spectrometer for enrichment and analysis of chemical contaminants in infant drinks. Anal Chim Acta 2020; 1098:66-74. [DOI: 10.1016/j.aca.2019.11.021] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 11/06/2019] [Accepted: 11/11/2019] [Indexed: 12/15/2022]
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15
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Recent developments and applications of QuEChERS based techniques on food samples during pesticide analysis. J Food Compost Anal 2019. [DOI: 10.1016/j.jfca.2019.103314] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Recent Applications and Newly Developed Strategies of Solid-Phase Microextraction in Contaminant Analysis: Through the Environment to Humans. SEPARATIONS 2019. [DOI: 10.3390/separations6040054] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The present review aims to describe the recent and most impactful applications in pollutant analysis using solid-phase microextraction (SPME) technology in environmental, food, and bio-clinical analysis. The covered papers were published in the last 5 years (2014–2019) thus providing the reader with information about the current state-of-the-art and the future potential directions of the research in pollutant monitoring using SPME. To this end, we revised the studies focused on the investigation of persistent organic pollutants (POPs), pesticides, and emerging pollutants (EPs) including personal care products (PPCPs), in different environmental, food, and bio-clinical matrices. We especially emphasized the role that SPME is having in contaminant surveys following the path that goes from the environment to humans passing through the food web. Besides, this review covers the last technological developments encompassing the use of novel extraction coatings (e.g., metal-organic frameworks, covalent organic frameworks, PDMS-overcoated fiber), geometries (e.g., Arrow-SPME, multiple monolithic fiber-SPME), approaches (e.g., vacuum and cold fiber SPME), and on-site devices. The applications of SPME hyphenated with ambient mass spectrometry have also been described.
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Review of Ionic Liquids in Microextraction Analysis of Pesticide Residues in Fruit and Vegetable Samples. Chromatographia 2019. [DOI: 10.1007/s10337-019-03818-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Zhang M, Ma X, Li J, Huang R, Guo L, Zhang X, Fan Y, Xie X, Zeng G. Enhanced removal of As(Ⅲ) and As(Ⅴ) from aqueous solution using ionic liquid-modified magnetic graphene oxide. CHEMOSPHERE 2019; 234:196-203. [PMID: 31220653 DOI: 10.1016/j.chemosphere.2019.06.057] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 06/05/2019] [Accepted: 06/08/2019] [Indexed: 05/22/2023]
Abstract
In this study, ionic liquid (IL) 1-butyl-3-methylimidazolium hexafluorophosphate ([BMIM][PF6])-modified magnetic graphene oxide (MGO-IL) was prepared for the first time, and was used to adsorb and remove arsenic (As(Ⅲ) and As(V)) ions from aqueous solution. MGO-IL was characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, and magnetization curves. Effects of ionic liquid type, solution pH, initial arsenic concentration and contact time on the adsorption performance of MGO-IL for As(Ⅲ) and As(V) were studied. The experimental results showed that the adsorption equilibrium was achieved within 30 min, with maximum adsorption capacities of 160.65 mg g-1 for As(Ⅲ) and 104.13 mg g-1 for As(V), respectively, and MGO-IL could be rapidly isolated from solution by applying a magnetic field. MGO-IL was reused for 5 times, without marked decrease in its adsorption capacities. Moreover, common coexisting anions did not interfere with the absorption of As(Ⅲ) and As(V). Compared with MGO, the sorption quantities of MGO-IL for As(Ⅲ) and As(V) were greatly enhanced, and the equilibrium time was significantly reduced. Therefore, MGO-IL can potentially serve as an excellent adsorbent for the simultaneous separation and removal of As(Ⅲ) and As(V) from water.
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Affiliation(s)
- Mengyuan Zhang
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Xiaoguo Ma
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Jing Li
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Renfeng Huang
- School of Environmental Science and Engineering, South China University of Technology, Guangzhou, 510006, China
| | - Lihui Guo
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Xiaofeng Zhang
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Yinming Fan
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Xiaowen Xie
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Guolong Zeng
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
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Pelit L, Pelit F, Ertaş H, Ertaş FN. Electrochemically Fabricated Solid Phase Microextraction Fibers and Their Applications in Food, Environmental and Clinical Analysis. CURR ANAL CHEM 2019. [DOI: 10.2174/1573411015666190314155440] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Background:Designing an analytical methodology for complicated matrices, such as biological and environmental samples, is difficult since the sample preparation procedure is the most demanding step affecting the whole analytical process. Nowadays, this step has become more challenging by the legislations and environmental concerns since it is a prerequisite to eliminate or minimize the use of hazardous substances in traditional procedures by replacing with green techniques suitable for the sample matrix.Methods:In addition to the matrix, the nature of the analyte also influence the ease of creating green analytical techniques. Recent developments in the chemical analysis provide us new methodologies introducing microextraction techniques and among them, solid phase microextraction (SPME) has emerged as a simple, fast, low cost, reliable and portable sample preparation technique that minimizes solvent consumption.Results:The use of home-made fibers is popular in the last two decades since the selectivity can be tuned by changing the surface characteristics through chemical and electrochemical modifications. Latter technique is preferred since the electroactive polymers can be coated onto the fiber under controlled electrochemical conditions and the film thicknesses can be adjusted by simply changing the deposition parameters. Thermal resistance and mechanical strength can be readily increased by incorporating different dopant ions into the polymeric structure and selectivity can be tuned by inserting functional groups and nanostructures. A vast number of analytes with wide range of polarities extracted by this means can be determined with a suitable chromatographic detector coupled to the system. Therefore, the main task is to improve the physicochemical properties of the fiber along with the extraction efficiency and selectivity towards the various analytes by adjusting the electrochemical preparation conditions.Conclusion:This review covers the fine tuning conditions practiced in electrochemical preparation of SPME fibers and in-tube systems and their applications in environmental, food and clinical analysis.
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Affiliation(s)
- Levent Pelit
- Department of Chemistry, Science Faculty, Ege University, Bornova, 35 100, İzmir, Turkey
| | - Füsun Pelit
- Department of Chemistry, Science Faculty, Ege University, Bornova, 35 100, İzmir, Turkey
| | - Hasan Ertaş
- Department of Chemistry, Science Faculty, Ege University, Bornova, 35 100, İzmir, Turkey
| | - Fatma Nil Ertaş
- Department of Chemistry, Science Faculty, Ege University, Bornova, 35 100, İzmir, Turkey
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Marcinkowska R, Konieczna K, Marcinkowski Ł, Namieśnik J, Kloskowski A. Application of ionic liquids in microextraction techniques: Current trends and future perspectives. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.07.025] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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21
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Musarurwa H, Chimuka L, Tavengwa NT. Green pre-concentration techniques during pesticide analysis in food samples. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2019; 54:770-780. [PMID: 31250698 DOI: 10.1080/03601234.2019.1633213] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The ever-increasing demand for determining pesticides at low concentration levels in different food matrices requires a preliminary step of pre-concentration which is considered a crucial stage. Recently, the parameter of "greenness" during sample pre-concentration of pesticides in food matrices is as important as selectivity in order to avoid using harmful organic solvents during sample preparation. Developing new green pre-concentration techniques is one of the key subjects. Thus, to reduce the impact on the environment during trace analysis of pesticides in food matrices, new developments in pre-concentration have gone in three separate directions: the search for more environmentally friendly solvents, miniaturization and development of solvent-free pre-concentration techniques. Eco-friendly solvents such as supercritical fluids, ionic liquids and natural deep eutectic solvents have been developed for use as extraction solvents during pre-concentration of pesticides in food matrices. Also, miniaturized pre-concentration techniques such as QuEChERS, dispersive liquid-liquid micro-extraction and hollow-fiber liquid-phase micro-extraction have been used during trace analysis of pesticides in food samples as well as solvent-free techniques such as solid-phase micro-extraction and stir bar sorptive extraction. All these developments which are aimed at ensuring that pesticide pre-concentration in different food matrices is green are critically reviewed in this paper.
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Affiliation(s)
- Herbert Musarurwa
- Department of Chemistry, University of Venda , Thohoyandou , South Africa
| | - Luke Chimuka
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand , Johannesburg , South Africa
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22
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Lashgari M, Yamini Y. An overview of the most common lab-made coating materials in solid phase microextraction. Talanta 2019; 191:283-306. [DOI: 10.1016/j.talanta.2018.08.077] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 08/24/2018] [Accepted: 08/27/2018] [Indexed: 11/28/2022]
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23
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Zheng J, Huang J, Yang Q, Ni C, Xie X, Shi Y, Sun J, Zhu F, Ouyang G. Fabrications of novel solid phase microextraction fiber coatings based on new materials for high enrichment capability. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.08.021] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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24
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Moyakao K, Santaladchaiyakit Y, Srijaranai S, Vichapong J. Preconcentration of Trace Neonicotinoid Insecticide Residues Using Vortex-Assisted Dispersive Micro Solid-Phase Extraction with Montmorillonite as an Efficient Sorbent. Molecules 2018; 23:molecules23040883. [PMID: 29641473 PMCID: PMC6017937 DOI: 10.3390/molecules23040883] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 04/08/2018] [Accepted: 04/09/2018] [Indexed: 11/16/2022] Open
Abstract
In this work, we investigated montmorillonite for adsorption of neonicotinoid insecticides in vortex-assisted dispersive micro-solid phase extraction (VA-d-μ-SPE). High-performance liquid chromatography with photodiode array detection was used for quantification and determination of neonicotinoid insecticide residues, including thiamethoxam, clothianidin, imidacloprid, acetamiprid, and thiacloprid. In this method, the solid sorbent was dispersed into the aqueous sample solution and vortex agitation was performed to accelerate the extraction process. Finally, the solution was filtered from the solid sorbent with a membrane filter. The parameters affecting the extraction efficiency of the proposed method were optimized, such as amount of sorbent, sample volume, salt addition, type and volume of extraction solvent, and vortex time. The adsorbing results show that montmorillonite could be reused at least 4 times and be used as an effective adsorbent for rapid extraction/preconcentration of neonicotinoid insecticide residues. Under optimum conditions, linear dynamic ranges were achieved between 0.5 and 1000 ng mL-1 with a correlation of determination (R²) greater than 0.99. Limit of detection (LOD) ranged from 0.005 to 0.065 ng mL-1, while limit of quantification (LOQ) ranged from 0.008 to 0.263 ng mL-1. The enrichment factor (EF) ranged from 8 to 176-fold. The results demonstrated that the proposed method not only provided a more simple and sensitive method, but also can be used as a powerful alternative method for the simultaneous determination of insecticide residues in natural surface water and fruit juice samples.
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Affiliation(s)
- Khwankaew Moyakao
- Creative Chemistry and Innovation Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Maha Sarakham 44150, Thailand.
| | - Yanawath Santaladchaiyakit
- Department of Chemistry, Faculty of Engineering, Rajamangala University of Technology Isan, Khon Kaen Campus, Khon Kaen 40000, Thailand.
| | - Supalax Srijaranai
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Jitlada Vichapong
- Creative Chemistry and Innovation Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Maha Sarakham 44150, Thailand.
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25
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Samsidar A, Siddiquee S, Shaarani SM. A review of extraction, analytical and advanced methods for determination of pesticides in environment and foodstuffs. Trends Food Sci Technol 2018. [DOI: 10.1016/j.tifs.2017.11.011] [Citation(s) in RCA: 206] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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26
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Electrospun polydimethylsiloxane/polyacrylonitrile/titanium dioxide nanofibers as a new coating for determination of alpha-linolenic acid in milk by direct immersion-solid phase nanoextraction. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1073:43-50. [DOI: 10.1016/j.jchromb.2017.11.042] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2017] [Revised: 11/21/2017] [Accepted: 11/30/2017] [Indexed: 12/22/2022]
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27
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Wang G, Morrin A, Li M, Liu N, Luo X. Nanomaterial-doped conducting polymers for electrochemical sensors and biosensors. J Mater Chem B 2018; 6:4173-4190. [DOI: 10.1039/c8tb00817e] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This review summarizes recent advances in the development of electrochemical sensors and biosensors based on nanomaterial doped conducting polymers.
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Affiliation(s)
- Guixiang Wang
- Key Laboratory of Sensor Analysis of Tumor Marker
- Ministry of Education
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
| | - Aoife Morrin
- School of Chemical Sciences
- National Centre for Sensor Research
- INSIGHT Centre for Data Analytics
- Dublin City University
- Dublin 9
| | - Mengru Li
- Key Laboratory of Sensor Analysis of Tumor Marker
- Ministry of Education
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
| | - Nianzu Liu
- Key Laboratory of Sensor Analysis of Tumor Marker
- Ministry of Education
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
| | - Xiliang Luo
- Key Laboratory of Sensor Analysis of Tumor Marker
- Ministry of Education
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
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Saraji M, Jafari MT, Amooshahi MM. Sol-gel/nanoclay composite as a sorbent for microextraction in packed syringe combined with corona discharge ionization ion mobility spectrometry for the determination of diazinon in water samples. J Sep Sci 2017; 41:493-500. [DOI: 10.1002/jssc.201700967] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 10/16/2017] [Accepted: 10/16/2017] [Indexed: 02/04/2023]
Affiliation(s)
- Mohammad Saraji
- Department of Chemistry; Isfahan University of Technology; Isfahan Iran
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29
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Maya F, Palomino Cabello C, Ghani M, Turnes Palomino G, Cerdà V. Emerging materials for sample preparation. J Sep Sci 2017; 41:262-287. [DOI: 10.1002/jssc.201700836] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Revised: 09/18/2017] [Accepted: 09/18/2017] [Indexed: 12/16/2022]
Affiliation(s)
- Fernando Maya
- Department of Chemistry; University of the Balearic Islands; Palma de Mallorca Spain
| | | | - Milad Ghani
- Department of Chemistry; University of the Balearic Islands; Palma de Mallorca Spain
- Department of Chemistry; Isfahan University of Technology; Isfahan Iran
| | - Gemma Turnes Palomino
- Department of Chemistry; University of the Balearic Islands; Palma de Mallorca Spain
| | - Víctor Cerdà
- Department of Chemistry; University of the Balearic Islands; Palma de Mallorca Spain
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30
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Hou X, Wang L, Guo Y. Recent Developments in Solid-phase Microextraction Coatings for Environmental and Biological Analysis. CHEM LETT 2017. [DOI: 10.1246/cl.170366] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Xiudan Hou
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
- University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Licheng Wang
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| | - Yong Guo
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
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31
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Faleye AC, Adegoke AA, Ramluckan K, Bux F, Stenström TA. Identification of antibiotics in wastewater: current state of extraction protocol and future perspectives. JOURNAL OF WATER AND HEALTH 2017; 15:982-1003. [PMID: 29215361 DOI: 10.2166/wh.2017.097] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The release and occurrence of antibiotics in the aquatic environment has generated increased attention in the past few decades. The residual antibiotic in wastewater is important in the selection for antimicrobial resistance among microorganisms and the possibility of forming toxic derivatives. This review presents an assessment of the advancement in methods for extraction of antibiotics with solid phase extraction and liquid-liquid extraction methods applied in different aquatic environmental media. These advanced methods do enhance specificity, and also exhibit high accuracy and recovery. The aim of this review is to assess the pros and cons of the methods of extraction towards identification of quinolones and sulphonamides as examples of relevant antibiotics in wastewater. The challenges associated with the improvements are also examined with a view of providing potential perspectives for better extraction and identification protocols in the near future. From the context of this review, magnetic molecular imprinted polymer is superior over the remaining extraction methods (with the availability of commercial templates and monomers), is based on less cumbersome extraction procedures, uses less solvent and has the advantage of its reusable magnetic phase.
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Affiliation(s)
- A C Faleye
- Institute for Water and Wastewater Technology, Durban University of Technology, Durban, South Africa E-mail: ; Department of Chemistry, Faculty of Applied Sciences, Durban University of Technology, Durban, South Africa
| | - A A Adegoke
- Institute for Water and Wastewater Technology, Durban University of Technology, Durban, South Africa E-mail:
| | - K Ramluckan
- Department of Chemistry, Faculty of Applied Sciences, Durban University of Technology, Durban, South Africa
| | - F Bux
- Institute for Water and Wastewater Technology, Durban University of Technology, Durban, South Africa E-mail:
| | - T A Stenström
- Institute for Water and Wastewater Technology, Durban University of Technology, Durban, South Africa E-mail:
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32
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Combination of dispersive solid phase extraction and dispersive liquid–liquid microextraction for extraction of some aryloxy pesticides prior to their determination by gas chromatography. Microchem J 2017. [DOI: 10.1016/j.microc.2016.12.013] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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33
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Ebrahimpour E, Amiri A, Baghayeri M, Rouhi M, Lakouraj MM. Poly (indole-co-thiophene)@Fe3O4 as novel adsorbents for the extraction of aniline derivatives from water samples. Microchem J 2017. [DOI: 10.1016/j.microc.2016.12.022] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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34
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Vortex-Assisted Dispersive Solid-Phase Microextraction Using Ionic Liquid-Modified Metal-Organic Frameworks of PAHs from Environmental Water, Vegetable, and Fruit Juice Samples. FOOD ANAL METHOD 2017. [DOI: 10.1007/s12161-017-0843-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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35
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Polythiophene/graphene oxide nanostructured electrodeposited coating for on-line electrochemically controlled in-tube solid-phase microextraction. J Chromatogr A 2016; 1475:8-17. [PMID: 27836227 DOI: 10.1016/j.chroma.2016.11.003] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2016] [Revised: 11/01/2016] [Accepted: 11/03/2016] [Indexed: 12/27/2022]
Abstract
In this work, a novel polythiophene/graphene oxide (PTh/GO) nanostructured coating was introduced for on-line electrochemically-controlled in-tube solid phase microextraction of amitriptyline (AMI) and doxepin (DOX) as antidepressant drugs. The PTh/GO coating was prepared on the inner surface of a stainless steel tube by a facile in-situ electro-deposition method and it was used as a working electrode for electrochemically control in-tube solid phase microextraction. In the PTh/GO coating, GO acts as an anion dopant and sorbent. The PTh/GO coating, compared to PTh and GO coatings, exhibited enhanced long lifetime, good mechanical stability and a large specific surface area. Regarding the in-tube SPME, some important factors such as the extraction and desorption voltage, extraction and desorption times and flow rates of the sample solution and eluent, which could affect the extraction and separation efficiency of the analytes, were optimized. Total analysis time of this method including the online extraction and desorption time was about 21min for each sample. AMI and DOX were extracted, separated and determined with limits of detection as small as 0.3μgL-1 and 0.5μgL-1, respectively. This method showed good linearity in the range of 0.7-200μgL-1, 2.3-200μgL-1 and 2.9-200μgL-1 for AMI, and in the range 0.9-200μgL-1, 2.5-200μgL-1 and 3.0-200μgL-1 for DOX in water, urine and plasma samples, respectively; the coefficients of determination were also equal to or higher than 0.9976. The inter- and intra-assay precisions (RSD%, n=3) were in the range of 2.8-3.4% and 2.9-3.9% at the three concentration levels of 5, 25 and 50μgL-1, respectively. Finally, under the optimal conditions, the method was applied for the analysis of the drugs in human urine and plasma pretreated samples and good results were obtained.
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36
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Bagheri H, Banihashemi S, Jelvani S. A polythiophene–silver nanocomposite for headspace needle trap extraction. J Chromatogr A 2016; 1460:1-8. [DOI: 10.1016/j.chroma.2016.06.078] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Revised: 06/25/2016] [Accepted: 06/27/2016] [Indexed: 12/11/2022]
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37
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Wu M, Chen G, Liu P, Zhou W, Jia Q. Preparation of porous aromatic framework/ionic liquid hybrid composite coated solid-phase microextraction fibers and their application in the determination of organochlorine pesticides combined with GC-ECD detection. Analyst 2016; 141:243-50. [DOI: 10.1039/c5an01372k] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Novel porous aromatic framework/ionic liquid hybrid composite coated SPME fibers were prepared for the preconcentration of OCPs coupled with GC-ECD.
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Affiliation(s)
- Mingxue Wu
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Gang Chen
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Ping Liu
- Changchun GeneScience Pharmaceuticals Co
- Ltd
- Changchun 130012
- China
| | - Weihong Zhou
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Qiong Jia
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
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38
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Efficient solid-phase microextraction of triazole pesticides from natural water samples using a Nafion-loaded trimethylsilane-modified mesoporous silica coating of type SBA-15. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1724-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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39
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Pelit L, Yılmaz B, Tatlı AY, Pelit F, Dizdaş TN, Özdokur KV, Ertaş H, Ertaş FN. Polythiophene–Clay Composite Solid-Phase Microextraction Fiber: Preparation, Characterization, and Application to the Determination of Methanol in Biodiesel. ANAL LETT 2015. [DOI: 10.1080/00032719.2015.1039016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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