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Orlando RM, Dvořák M, Kubáň P. Electroextraction of methylene blue from aqueous environmental samples using paper points coupled with hollow fiber membranes. Talanta 2024; 273:125849. [PMID: 38490026 DOI: 10.1016/j.talanta.2024.125849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 01/26/2024] [Accepted: 02/28/2024] [Indexed: 03/17/2024]
Abstract
This article introduces a novel approach by coupling paper points with hollow fiber membrane for electroextraction (PP-HF-EE). The method was innovatively applied to extract methylene blue (MB) from large water volumes (up to 580 mL). A comprehensive study of six key parameters - organic filter, acceptor and donor phase composition, extraction time, applied voltage, and sample volume - was conducted using conventional flatbed scanning and digital image analysis. Our results revealed that extraction performance was primarily influenced by time, with low voltages (50 V) and low-conductivity organic filters (1-decanol) yielding comparable results to higher settings (300 V or 1-pentanol). Under optimized conditions (50 V, 60 min, 1-decanol as the organic filter), analytical performance parameters were assessed, demonstrating acceptable precision (RSD <18% for intra- and inter-day measurements) within a linear range of 5-100 μg L-1 (r = 0.98). PP-HF-EE demonstrated reliability through stable and reproducible electric current measurements during all extraction studies. Utilizing an extremely cost-effective detection system, PP-HF-EE achieved detection limits in the low ppb range, highlighting its potential as a promising variation of electromembrane extraction for environmental sample analysis.
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Affiliation(s)
- Ricardo Mathias Orlando
- Laboratory of Microfluidics and Separations, LaMS, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
| | - Miloš Dvořák
- Institute of Analytical Chemistry of the Czech Academy of Sciences, v. v. i., Veveří 97, Brno, Czech Republic
| | - Pavel Kubáň
- Institute of Analytical Chemistry of the Czech Academy of Sciences, v. v. i., Veveří 97, Brno, Czech Republic
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Nejabati F, Ebrahimzadeh H. A novel sorbent based on electrospun for electrically-assisted solid phase microextraction of six non-steroid anti-inflammatory drugs, followed by quantitation with HPLC-UV in human plasma samples. Anal Chim Acta 2024; 1287:341839. [PMID: 38182332 DOI: 10.1016/j.aca.2023.341839] [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: 06/10/2023] [Revised: 08/30/2023] [Accepted: 09/20/2023] [Indexed: 01/07/2024]
Abstract
BACKGROUND Although NSAIDs possess notable therapeutic and pharmaceutical qualities, it's essential to acknowledge that excessive doses can result in toxicity within the human body. Moreover, the importance lies in identifying and measuring their trace amounts. Due to their existence within intricate matrices, the creation of novel electrospun nanofibers as sorbents for electrically-assisted solidphase microextraction (EA-SPME) becomes vital. This innovation caters to the requirement for the effective pre-treatment of NSAID samples, providing a strategic approach to managing the complexities associated with trace quantities found in various matrices. RESULTS First, polyvinylalcohol/casein/tannic acid/polyaniline/titanium dioxide nanoparticles (PVA/CAS/TA/PANI/TiO2 NPs) electrospun nanofibers were prepared for EA-SPME on pewter rode and then, trace amounts of six NSAIDs (Acetaminophen, Caffeine, Naproxen, Celecoxib, Ibuprofen and mefenamic acid) were adsorbed chemically on these nanofibers. In the next step, the desorption of six NSAIDs was electrochemically done from prepared electrospun nanofibers on a pewter rod which was as working electrode at three electrodes system. Finally, these drugs were quantified from different human plasma samples with HPLC-UV. The synthesis of electrospun nanofibers was confirmed through a series of analytical techniques including field emission-scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy with elemental mapping analysis (EDX-Mapping), X-ray diffraction (XRD), and Fourier transform-infrared (FT-IR). The optimal percentage of additive compounds to PVA/CAS for electrospinning, as well as the factors influencing adsorption and desorption processes, were determined through both of Design Expert software and MATLAB programming language. SIGNIFICANCE Under optimum conditions, the wide linear range was 27-8000 ng mL-1 with R2≥ 0.9897, low detection limits were ranged from 8 to 27.3 ng mL-1 based on S/N = 3 and significant enrichment factors were acquired. The intra-day and inter-day RSDs% were obtained within the 4.51% - 5.68% and 4.28%-5.45%, respectively. Finally, The effectiveness of the EA-SPME-HPLC-UV method was assessed for determining NSAIDs in plasma samples, demonstrating good recoveries ranging from 90.2% to 105.2%.
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Affiliation(s)
- Fatemeh Nejabati
- Department of Analytical Chemistry and Pollutants, Faculty of Chemistry and Petroleum Sciences, Shahid Beheshti University, Tehran, Iran.
| | - Homeira Ebrahimzadeh
- Department of Analytical Chemistry and Pollutants, Faculty of Chemistry and Petroleum Sciences, Shahid Beheshti University, Tehran, Iran.
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Sousa DVM, Pereira FV, Boratto VHM, Orlando RM. Multiphase electroextraction as a simple and fast sample preparation alternative for the digital image determination of doxorubicin in saliva. Talanta 2023; 255:124242. [PMID: 36638654 DOI: 10.1016/j.talanta.2022.124242] [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: 10/02/2022] [Revised: 12/27/2022] [Accepted: 12/29/2022] [Indexed: 01/01/2023]
Abstract
Monitoring chemotherapeutic drugs in biological fluids is, in many cases, extremely important for dose adjustment, the maintenance of therapies, and the control of side effects. In this work, a method for determining the doxorubicin in saliva by digital image analysis (DIA) was optimised and validated. Images from a paper point were obtained using a conventional and cheap flatbed scanner at a 600 ppp resolution. The RGB data channels were obtained from the images in a region of 15 × 15 pixels around the sorbent vertex. The paper point was used as sorbent material in sample preparation using a multiphase electroextraction system. Following optimisation using a Doehlert experimental design, the method was able to simultaneously extract 66 samples in 20 min. The high selectivity of the electric field associated with the sorption capacity of the cellulosic material allowed the chemotherapy drug to be pre-concentrated and quantified in a range between 50 and 500 μg L-1 (R2 > 0.98). The method also exhibited adequate parameters (limits of detection and quantification, recovery, and precision) indicating its potential application in the monitoring of doxorubicin and similar drugs in saliva.
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Kamalabadi M, Razavi-Mashouf MM, Madrakian T, Ghoorchian A, Afkhami A. Electrochemically controlled solid phase microextraction based on nanostructured polypyrrole film for selective extraction of sunset yellow in food samples. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2021. [DOI: 10.1007/s13738-021-02259-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Sereshti H, Karami F, Nouri N, Farahani A. Electrochemically controlled solid phase microextraction based on a conductive polyaniline-graphene oxide nanocomposite for extraction of tetracyclines in milk and water. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:2304-2311. [PMID: 33006378 DOI: 10.1002/jsfa.10851] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 09/12/2020] [Accepted: 10/02/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Tetracycline antibiotics are employed for human and animal health and for speeding up growth rates. However, their presence in food products and environmental waters has been a concern for some years. Therefore, a variety of sample preparation methods have been developed for the analysis of tetracycline residues in these matrices. RESULTS An electrochemically controlled solid phase microextraction based on a modified copper electrode with polyaniline/graphene oxide (PANI/GO) conductive nanocomposite was developed for the extraction of oxytetracycline, tetracycline and doxycycline before high-performance liquid chromatography-UV analysis. PANI/GO was synthesized by in situ chemical oxidative polymerization, characterized by scanning electron microscopy and Fourier-transform infrared spectroscopy, and bound on the electrode using high purity conductive double-sided adhesive carbon glue. The significant factors affecting the performance of microextraction were investigated and optimized. Under the optimized conditions [sample, 15 mL; sorbent, 10 mg; pH, 3.0; electroextraction voltage, -0.9 V; electroextraction time, 20 min; eluent (MeOH/NH3 ), 500 μL; and desorption time, 5 min], the limits of detection for target analytes were in the ranges 0.32-1.01 and 2.42-7.59 μg L-1 in water and milk samples, respectively. The linear ranges were 1.06-750 μg L-1 for water and 8.05-750 μg L-1 for milk samples. The intra-day and inter-day precisions were 2.32-3.80 and 3.29-4.25, respectively. The method was applied to the determination of analytes in milk and water samples with different fat contents, and the recoveries were obtained in the range 71-104%. CONCLUSION The developed electro-microextraction method provides a facile, rapid, cost-effective, sensitive and efficient promising procedure for the extraction of antibiotics in complex matrices. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Hassan Sereshti
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Faezeh Karami
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Nina Nouri
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Ali Farahani
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
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Viana JDS, Caneschi de Freitas M, Botelho BG, Orlando RM. Large-volume electric field-assisted multiphase extraction of malachite green from water samples: A multisample device and method validation. Talanta 2021; 222:121540. [PMID: 33167248 DOI: 10.1016/j.talanta.2020.121540] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 08/06/2020] [Accepted: 08/08/2020] [Indexed: 10/23/2022]
Abstract
In this work, a new large-volume multiphase, multi-sample electroextraction device was developed and applied to selectively extract malachite green (MG) from water samples. This device was easily constructed with ordinary materials and capable of extracting ten samples simultaneously, obtaining MG preconcentrated on a solid support, to fit into a pipette tip. A multi-well plate was applied to extract MG from aquaculture water samples, and the extracts containing the desorbed MG were analysed by LC-DAD and LC-MS/MS. The signals from both detectors were used in two independent validation procedures. Linearity, matrix effect, selectivity, precision, trueness, and limits of detection and quantification were all evaluated. For both detectors, linearity was demonstrated in the range of 0.5-5 μg L-1 (R2 > 0.98). Matrix effect was insignificant for LC-DAD only, and the average preconcentration factor was about 60 times. Recoveries ranged from 94 to 113% for LC-DAD and 95-115% for LC-MS/MS analysis. ANOVA was applied to estimate the standard deviation under repeatability (6.96-8.61% for LC-DAD and 5.98-7.41% for LC-MS/MS) and within-reproducibility (6.96-8.61% for LC-DAD and 6.56-7.41% for LC-MS/MS) conditions. The limits of detection and quantification for LC-MS/MS analysis were 4.29 and 28.74 ng L-1, respectively, while, for LC-DAD, these limits were 14.29 and 95.81 ng L-1, respectively. The results demonstrated that the developed method was suitable for determining MG in water samples, and the large-volume multiphase, multi-sample electroextraction device proved to be a powerful sample preparation technique to obtain high clean-up and large preconcentration levels, which are of paramount importance for environmental applications.
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Affiliation(s)
- Jaime Dos Santos Viana
- Laboratório de Microfluídica e Separações, LaMS, Departamento de Química, Universidade Federal de Minas Gerais, Belo Horizonte, 30123-970, Minas Gerais, Brazil
| | - Marina Caneschi de Freitas
- Laboratório de Microfluídica e Separações, LaMS, Departamento de Química, Universidade Federal de Minas Gerais, Belo Horizonte, 30123-970, Minas Gerais, Brazil
| | - Bruno Gonçalves Botelho
- Laboratório de Microfluídica e Separações, LaMS, Departamento de Química, Universidade Federal de Minas Gerais, Belo Horizonte, 30123-970, Minas Gerais, Brazil
| | - Ricardo M Orlando
- Laboratório de Microfluídica e Separações, LaMS, Departamento de Química, Universidade Federal de Minas Gerais, Belo Horizonte, 30123-970, Minas Gerais, Brazil.
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Electrochemically deposition of ionic liquid modified graphene oxide for circulated headspace in-tube solid phase microextraction of naphthalene from honey samples followed by on-line liquid chromatography analysis. J Chromatogr A 2020; 1628:461486. [DOI: 10.1016/j.chroma.2020.461486] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 08/01/2020] [Accepted: 08/12/2020] [Indexed: 01/07/2023]
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Screen-printed anion-exchange solid-phase extraction: A new strategy for point-of-care determination of angiotensin receptor blockers. Talanta 2020; 222:121518. [PMID: 33167228 DOI: 10.1016/j.talanta.2020.121518] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 08/03/2020] [Accepted: 08/04/2020] [Indexed: 12/26/2022]
Abstract
A miniaturized system of anion exchange solid phase extraction (SPE) based on a screen-printed electrode was developed as a point of care (POC) device for extraction and quantitative determination of anionic analytes. Nylon 6/polyaniline nanofibers were fabricated by electrospinning and in-situ oxidative polymerization techniques coated on a screen-printed working electrode and characterized by Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) methods. The effects of essential parameters such as desorption conditions, pH of the sample solution, adsorption voltage, adsorption time, and salt concentration on the performance of the method were investigated. To evaluate the performance of the system, angiotensin ΙΙ receptor antagonists, including valsartan, losartan, and irbesartan, were selected as model compounds and analyzed by HPLC/UV after extraction. The limits of detection and quantification were ranging between 0.4 and 0.9 μg L-1 and 1.3-3.0 μg L-1, respectively. The linear dynamic range for Losartan, Irbesartan, and Valsartan was 2-400, 4-1000, and 2-400 μg L-1, respectively, with R2 > 0.991. Finally, the method was applied for the determination of ARA-IIs in human blood plasma samples, and relative recoveries in the range of 89.0-107.8% with relative standard deviation (RSDs (≤8.9% were obtained.
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Liu S, Huang Y, Qian C, Xiang Z, Ouyang G. Physical assistive technologies of solid-phase microextraction: Recent trends and future perspectives. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115916] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Polyaniline immobilized on polycaprolactam nanofibers as a sorbent in electrochemically controlled solid-phase microextraction coupled with HPLC for the determination of angiotensin II receptor antagonists in human blood plasma. Anal Bioanal Chem 2019; 411:3631-3640. [DOI: 10.1007/s00216-019-01845-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Revised: 03/08/2019] [Accepted: 04/11/2019] [Indexed: 01/25/2023]
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Orlando RM, Nascentes CC, Botelho BG, Moreira JS, Costa KA, de Miranda Boratto VH. Development and Evaluation of a 66-Well Plate Using a Porous Sorbent in a Four-Phase Extraction Assisted by Electric Field Approach. Anal Chem 2019; 91:6471-6478. [DOI: 10.1021/acs.analchem.8b04943] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ricardo Mathias Orlando
- Laboratory of Microfluidics and Separations, LaMS, and Beer Production and Analysis Lab, Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte 30123-970, Minas Gerais Brazil
| | - Clesia Cristina Nascentes
- Laboratory of Microfluidics and Separations, LaMS, and Beer Production and Analysis Lab, Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte 30123-970, Minas Gerais Brazil
| | - Bruno Gonçalves Botelho
- Laboratory of Microfluidics and Separations, LaMS, and Beer Production and Analysis Lab, Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte 30123-970, Minas Gerais Brazil
| | - Juliane Soares Moreira
- Laboratory of Microfluidics and Separations, LaMS, and Beer Production and Analysis Lab, Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte 30123-970, Minas Gerais Brazil
| | - Karina Araujo Costa
- Laboratory of Microfluidics and Separations, LaMS, and Beer Production and Analysis Lab, Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte 30123-970, Minas Gerais Brazil
| | - Victor Hugo de Miranda Boratto
- Laboratory of Microfluidics and Separations, LaMS, and Beer Production and Analysis Lab, Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte 30123-970, Minas Gerais Brazil
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Abstract
Saliva, as the first body fluid encountering with the exogenous materials, has good correlation with blood and plays an important role in bioanalysis. However, saliva has not been studied as much as the other biological fluids mainly due to restricted access to its large volumes. In recent years, there is a growing interest for saliva analysis owing to the emergence of miniaturized sample preparation methods. The purpose of this paper is to review all microextraction methods and their principles of operation. In the following, we examine the methods used to analyze saliva up to now and discuss the potential of the other microextraction methods for saliva analysis to encourage research groups for more focus on this important subject area.
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Lawal A, Wong RCS, Tan GH, Abdulra'uf LB, Alsharif AMA. Recent Modifications and Validation of QuEChERS-dSPE Coupled to LC-MS and GC-MS Instruments for Determination of Pesticide/Agrochemical Residues in Fruits and Vegetables: Review. J Chromatogr Sci 2018; 56:656-669. [PMID: 29688338 DOI: 10.1093/chromsci/bmy032] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Indexed: 02/03/2023]
Abstract
Fruits and vegetables constitute a major type of food consumed daily apart from whole grains. Unfortunately, the residual deposits of pesticides in these products are becoming a major health concern for human consumption. Consequently, the outcome of the long-term accumulation of pesticide residues has posed many health issues to both humans and animals in the environment. However, the residues have previously been determined using conventionally known techniques, which include liquid-liquid extraction, solid-phase extraction (SPE) and the recently used liquid-phase microextraction techniques. Despite the positive technological effects of these methods, their limitations include; time-consuming, operational difficulty, use of toxic organic solvents, low selective property and expensive extraction setups, with shorter lifespan of instrumental performances. Thus, the potential and maximum use of these methods for pesticides residue determination has resulted in the urgent need for better techniques that will overcome the highlighted drawbacks. Alternatively, attention has been drawn recently towards the use of quick, easy, cheap, effective, rugged and safe technique (QuEChERS) coupled with dispersive solid-phase extraction (dSPE) to overcome the setback challenges experienced by the previous technologies. Conclusively, the reviewed QuEChERS-dSPE techniques and the recent cleanup modifications justifiably prove to be reliable for routine determination and monitoring the concentration levels of pesticide residues using advanced instruments such as high-performance liquid chromatography, liquid chromatography-mass spectrometry and gas chromatography-mass spectrometry.
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Affiliation(s)
- Abubakar Lawal
- Department of Chemistry, University of Malaya, Kuala Lumpur, Malaysia.,Department of Pure and Industrial Chemistry, Umaru Musa Yar'adua University, P.M.B. Katsina, Nigeria
| | | | - Guan Huat Tan
- Department of Chemistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Lukman Bola Abdulra'uf
- Department of Chemistry, College of Pure and Applied Sciences, Kwara State University Malete, P.M.B. Ilorin, Nigeria
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Martín J, Díaz-Montaña EJ, Asuero AG. Recovery of Anthocyanins Using Membrane Technologies: A Review. Crit Rev Anal Chem 2018; 48:143-175. [PMID: 29185791 DOI: 10.1080/10408347.2017.1411249] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Anthocyanins are naturally occurring polyphenolic compounds and give many flowers, fruits and vegetable their orange, red, purple and blue colors. Besides their color attributes, anthocyanins have received much attention in recent years due to the growing evidence of their antioxidant capacity and health benefits on humans. However, these compounds usually occur in low concentrations in mixtures of complex matrices, and therefore large-scale harvesting is needed to obtain sufficient amounts for their practical usage. Effective fractionation or separation technologies are therefore essential for the screening and production of these bioactive compounds. In this context, membrane technologies have become popular due to their operational simplicity, the capacity to achieve good simultaneous separation/pre-concentration and matrix reduction with lower temperature and lower operating cost in comparison to other sample preparation methods. Membrane fractionation is based on the molecular or particle sizes (pressure-driven processes), on their charge (electrically driven processes) or are dependent on both size and charge. Other non-pressure-driven membrane processes (osmotic pressure and vapor pressure-driven) have been developed in recent years and employed as alternatives for the separation or fractionation of bioactive compounds at ambient conditions without product deterioration. These technologies are applied either individually or in combination as an integrated membrane system to meet the different requirements for the separation of bioactive compounds. The first section of this review examines the basic principles of membrane processes, including the different types of membranes, their structure, morphology and geometry. The most frequently used techniques are also discussed. Last, the specific application of these technologies for the separation, purification and concentration of phenolic compounds, with special emphasis on anthocyanins, are also provided.
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Affiliation(s)
- Julia Martín
- a Department of Analytical Chemistry , Escuela Politécnica Superior, University of Seville , Seville , Spain
| | | | - Agustin G Asuero
- b Department of Analytical Chemistry, Faculty of Pharmacy , University of Seville , Seville , Spain
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Alidoust M, Seidi S, Rouhollahi A, Shanehsaz M. In-tube electrochemically controlled solid phase microextraction of amitriptyline, imipramine and chlorpromazine from human plasma by using an indole-thiophene copolymer nanocomposite. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2258-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Brammen M, Fraga-García P, Berensmeier S. Carbon nanotubes-A resin for electrochemically modulated liquid chromatography. J Sep Sci 2017; 40:1176-1183. [DOI: 10.1002/jssc.201601102] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 12/13/2016] [Accepted: 12/13/2016] [Indexed: 01/25/2023]
Affiliation(s)
- Markus Brammen
- Bioseparation Engineering Group, Department of Mechanical Engineering; Technical University of Munich; München Germany
| | - Paula Fraga-García
- Bioseparation Engineering Group, Department of Mechanical Engineering; Technical University of Munich; München Germany
| | - Sonja Berensmeier
- Bioseparation Engineering Group, Department of Mechanical Engineering; Technical University of Munich; München Germany
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Xiao Y, Xiao R, Tang J, Zhu Q, Li X, Xiong Y, Wu X. Preparation and adsorption properties of molecularly imprinted polymer via RAFT precipitation polymerization for selective removal of aristolochic acid I. Talanta 2017; 162:415-422. [DOI: 10.1016/j.talanta.2016.10.014] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 09/21/2016] [Accepted: 10/02/2016] [Indexed: 11/16/2022]
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Electrical field assisted matrix solid phase dispersion as a powerful tool to improve the extraction efficiency and clean-up of fluoroquinolones in bovine milk. J Chromatogr A 2016; 1461:27-34. [PMID: 27492598 DOI: 10.1016/j.chroma.2016.07.063] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 07/21/2016] [Accepted: 07/23/2016] [Indexed: 11/22/2022]
Abstract
This work presents a new method by electrical matrix solid phase dispersion for the extraction and clean-up of marbofloxacin, ofloxacin, norfloxacin, ciprofloxacin, enrofloxacin, difloxacin and sarafloxacin in bovine milk. Composition and pH of the eluent, applied electrical potential and polarity were optimized by experimental designs. The combination of the chromatographic and electrophoretic mechanisms allowed the extraction and clean-up in one step with low organic solvent consumption, high extraction throughput and elution automation. Linearity, precision, trueness and limit of quantification were evaluated and provided values in accordance with other methods recently developed for the analysis of fluoroquinolones in milk. This technique proved to be promising for the extraction and clean-up of ionizable analytes in different milk matrices.
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Abstract
Sample preparation is a vital and inseparable part of an analytical procedure. This issue has motivated the analytical research community around the world to develop new, fast and cost-effective extraction methods which can eliminate interfering substances, provide high preconcentration factors and increase the determination sensitivity. Electrical field induced extraction technique is a topic that has received major attention in recent years. This fact can be attributed to the considerable advantages provided by imposition of an electrical driving force especially control of different properties of an extraction system such as selectivity, cleanup, rate and efficiency. In this review, focus is centered on the electrical field induced liquid phase extraction techniques and their potential for bioanalysis.
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Conductive polymeric ionic liquids for electroanalysis and solid-phase microextraction. Anal Chim Acta 2016; 910:45-52. [DOI: 10.1016/j.aca.2016.01.017] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Revised: 12/19/2015] [Accepted: 01/07/2016] [Indexed: 12/19/2022]
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Asiabi H, Yamini Y, Seidi S, Ghahramanifard F. Preparation and evaluation of a novel molecularly imprinted polymer coating for selective extraction of indomethacin from biological samples by electrochemically controlled in-tube solid phase microextraction. Anal Chim Acta 2016; 913:76-85. [DOI: 10.1016/j.aca.2016.01.060] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 01/28/2016] [Accepted: 01/31/2016] [Indexed: 10/22/2022]
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Armenta S, Garrigues S, de la Guardia M. The role of green extraction techniques in Green Analytical Chemistry. Trends Analyt Chem 2015. [DOI: 10.1016/j.trac.2014.12.011] [Citation(s) in RCA: 196] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Nanometer-sized materials for solid-phase extraction of trace elements. Anal Bioanal Chem 2015; 407:2685-710. [DOI: 10.1007/s00216-014-8429-9] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Revised: 12/02/2014] [Accepted: 12/18/2014] [Indexed: 12/25/2022]
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