1
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Liang HH, Lin YC, Hung CC, Hou YC, Lin YH. Method Development for Determination of Doripenem in Human Plasma via Capillary Electrophoresis Coupled with Field-Enhanced Sample Stacking and Sweeping. Int J Mol Sci 2023; 24:13751. [PMID: 37762057 PMCID: PMC10531396 DOI: 10.3390/ijms241813751] [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: 08/09/2023] [Revised: 08/30/2023] [Accepted: 08/30/2023] [Indexed: 09/29/2023] Open
Abstract
In this study, we established a novel capillary electrophoresis method for monitoring the concentration of doripenem in human plasma. As a time-dependent antibiotic, doripenem maximizes its antibacterial effects and minimizes the potential for antibiotic resistance through careful therapeutic drug monitoring. Two online preconcentration techniques, field-enhanced sample stacking (FESS) and sweeping, were coupled to enhance the detection sensitivity. Briefly, an uncoated fused silica capillary (40 cm × 50 μm i.d) was rinsed with a high conductivity buffer (HCB) composed of 150 mM phosphate buffer (NaH2PO4, pH 2.5) and 20% methanol. A large sample plug prepared in a low-conductivity phosphate buffer (50 mM NaH2PO4, pH 2.5) was then hydrodynamically injected (5 psi, 80 s) into the capillary. Under an applied voltage of -30 kV, the analyte was accumulated at the FESS boundary and swept by the negatively charged micelles toward the UV detector. Plasma samples were pretreated by solid-phase extraction (SPE) to eliminate endogenous interferences. The validation results demonstrated a high coefficient of determination (r2 > 0.9995) for the regression curve with impressive precision and accuracy: relative standard deviation (RSD) <5.86% and relative error <4.63%. The limit of detection (LOD, S/N = 3) for doripenem was determined to be 0.4 μg/mL. Compared to the conventional micellar electrokinetic chromatography method, our developed method achieved a sensitivity enhancement of up to 488-fold for doripenem. Furthermore, the newly developed method successfully quantified doripenem concentrations in plasma samples obtained from patients accepting doripenem regimens, proving its application potential in the clinical realm.
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Affiliation(s)
- Hsin-Hua Liang
- School of Pharmacy, China Medical University, Taichung 406040, Taiwan
| | - Yu-Chao Lin
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, China Medical University Hospital, Taichung 404332, Taiwan
| | - Chin-Chuan Hung
- School of Pharmacy, China Medical University, Taichung 406040, Taiwan
| | - Yu-Chi Hou
- School of Pharmacy, China Medical University, Taichung 406040, Taiwan
| | - Yi-Hui Lin
- School of Pharmacy, China Medical University, Taichung 406040, Taiwan
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2
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Otin J, Tran NT, Benoit A, Buisson C, Taverna M. Online large volume sample staking preconcentration and separation of enantiomeric GHRH analogs by capillary electrophoresis. Electrophoresis 2023; 44:807-817. [PMID: 36787346 DOI: 10.1002/elps.202200278] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/20/2023] [Accepted: 02/04/2023] [Indexed: 02/15/2023]
Abstract
A capillary electrophoresis method is proposed to analyze the four most well-known growth hormone-releasing hormone (GHRH) analogs that are misused by athletes. Dimethyl-β-cyclodextrin used as a chiral selector allowed, for the first time, the separation of those basic peptide analogs, including enantiopeptides (sermorelin and CJC-1293) that differ by the chirality of only one amino acid. To increase the method sensitivity, electrokinetic preconcentration methods have been investigated. The large volume sample stacking with polarity switching (PS-LVSS) method with an injected sample volume corresponding to 80% of the capillary one was found superior to the sweeping in terms of signal enhancement factor (SEF). Acid and organic solvent addition to the sample (0.1 mM phosphoric acid with 30% methanol) led to a twofold signal improvement, when compared to water as a matrix. We increased capillary dimensions to provide a signal enhancement through the injection of a larger sample volume. Finally, using a combination of the optimized PS-LVSS preconcentration with the chiral capillary zone electrophoresis (CZE), the GHRH analogs were separated and limits of detection between 75 and 200 ng/mL were reached. This method was successfully applied to urine after a desalting step. An optimized C18 SPE was used for that purpose in order to provide low sample conductivity (<130 µS/cm) and preserve the efficiency of LVSS preconcentration. SEF of 640 was obtained with desalted urine spiked with sermorelin by comparison to the CZE (without preconcentration) method.
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Affiliation(s)
- Joanie Otin
- Institut Galien Paris-Saclay, Université Paris-Saclay, Orsay, France
| | - N Thuy Tran
- Institut Galien Paris-Saclay, Université Paris-Saclay, Orsay, France
| | - Aurélie Benoit
- Laboratoire AntiDopage Français (LADF), Université Paris-Saclay, Chatenay-Malabry, France
| | - Corinne Buisson
- Laboratoire AntiDopage Français (LADF), Université Paris-Saclay, Chatenay-Malabry, France
| | - Myriam Taverna
- Institut Galien Paris-Saclay, Université Paris-Saclay, Orsay, France.,Institut universitaire de France, Paris, France
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3
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Yu RB, Quirino JP. Pseudophase-aided in-line sample concentration for capillary electrophoresis. Trends Analyt Chem 2023. [DOI: 10.1016/j.trac.2023.116914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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4
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Chu C, Zang Y, Li J, Zou Y, Gao W, Lv Y, Li C, Tong S, Liu EH, Peng X, Tang L. Online preconcentration and determination of anthraquinones in Cassiae Semen tea by salting-out assisted liquid‒liquid extraction coupled with dynamic pH junction-sweeping-large volume sample stacking in capillary electrophoresis. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.114014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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5
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Development of a simple and sensitive method for the determination of virginiamycin M1 antibiotic by capillary electrophoresis. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02412-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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6
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Yu RB, Quirino JP. Pseudophase-to-solvent microextraction for in-line sample concentration of anionic analytes in capillary zone electrophoresis. J Chromatogr A 2022; 1679:463383. [DOI: 10.1016/j.chroma.2022.463383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 07/06/2022] [Accepted: 07/27/2022] [Indexed: 10/16/2022]
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7
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Gu YX, Yan TC, Yue ZX, Liu FM, Cao J, Ye LH. Recent developments and applications in the microextraction and separation technology of harmful substances in a complex matrix. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107241] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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Li M, Wang Y, He K, Wang Y. Determination of pepsin by capillary electrophoresis using mixed polymer coated capillary with switchable properties towards protein adsorption/desorption. J Sep Sci 2022; 45:1960-1970. [PMID: 35352869 DOI: 10.1002/jssc.202100999] [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: 12/17/2021] [Revised: 03/08/2022] [Accepted: 03/26/2022] [Indexed: 11/07/2022]
Abstract
In this work, a simple on-line preconcentration method for quantitative detection of pepsin was realized by using the binary mixed polymer brushes coated capillary with switchable properties towards protein adsorption. Firstly, the binary mixed polymer brushes were prepared by grafting poly(2-methyl-2-oxazoline) and poly(4-vinylpyridine) onto the inner wall of the capillary through polydopamine anchor. Then the coatings were characterized by X-ray photoelectron spectrometer and electroosmotic flow measurement. The results indicated that the composition of coating could be controlled by varying the feed ratio of poly(2-methyl-2-oxazoline) to poly(4-vinylpyridine) and the inner surface charge could be tuned toward the change of pH and ionic strength. The results showed when poly(2-methyl-2-oxazoline)/poly(4-vinylpyridine) mass ratio was 80/20, the highest on-line preconcentration effect was obtained and the sensitivity enhancement factor was 6.3. Moreover, satisfactory sensitivity (limit of detection: 7.5 ng/mL) and good repeatability were obtained with on-line preconcentration method. The polymer coated capillary was still stable for on-line preconcentration and detection of pepsin after 50 consecutive runs. Lastly, the proposed method was used successfully to on-line preconcentrate pepsin in saliva matrix. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Mengqin Li
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Yuchen Wang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Kang He
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Yanmei Wang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
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9
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Švecová P, Baron D, Schug KA, Pluháček T, Petr J. Ultra-trace determination of oxaliplatin impurities by sweeping-MEKC-ICP-MS. Microchem J 2022. [DOI: 10.1016/j.microc.2021.106967] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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10
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El Deeb S, Silva CF, Junior CSN, Hanafi RS, Borges KB. Chiral Capillary Electrokinetic Chromatography: Principle and Applications, Detection and Identification, Design of Experiment, and Exploration of Chiral Recognition Using Molecular Modeling. Molecules 2021; 26:2841. [PMID: 34064769 PMCID: PMC8151978 DOI: 10.3390/molecules26102841] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/04/2021] [Accepted: 05/07/2021] [Indexed: 12/19/2022] Open
Abstract
This work reviews the literature of chiral capillary electrokinetic chromatography from January 2016 to March 2021. This is done to explore the state-of-the-art approach and recent developments carried out in this field. The separation principle of the technique is described and supported with simple graphical illustrations, showing migration under normal and reversed polarity modes of the separation voltage. The most relevant applications of the technique for enantioseparation of drugs and other enantiomeric molecules in different fields using chiral selectors in single, dual, or multiple systems are highlighted. Measures to improve the detection sensitivity of chiral capillary electrokinetic chromatography with UV detector are discussed, and the alternative aspects are explored, besides special emphases to hyphenation compatibility to mass spectrometry. Partial filling and counter migration techniques are described. Indirect identification of the separated enantiomers and the determination of enantiomeric migration order are mentioned. The application of Quality by Design principles to facilitate method development, optimization, and validation is presented. The elucidation and explanation of chiral recognition in molecular bases are discussed with special focus on the role of molecular modeling.
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Affiliation(s)
- Sami El Deeb
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, 38106 Braunschweig, Germany
| | - Camilla Fonseca Silva
- Departamento de Ciências Naturais, Campus Dom Bosco, Universidade Federal de São João del-Rei (UFSJ), Praça Dom Helvécio 74, Fábricas, São João del-Rei 36301-160, Minas Gerais, Brazil; (C.F.S.); (C.S.N.J.); (K.B.B.)
| | - Clebio Soares Nascimento Junior
- Departamento de Ciências Naturais, Campus Dom Bosco, Universidade Federal de São João del-Rei (UFSJ), Praça Dom Helvécio 74, Fábricas, São João del-Rei 36301-160, Minas Gerais, Brazil; (C.F.S.); (C.S.N.J.); (K.B.B.)
| | - Rasha Sayed Hanafi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt;
| | - Keyller Bastos Borges
- Departamento de Ciências Naturais, Campus Dom Bosco, Universidade Federal de São João del-Rei (UFSJ), Praça Dom Helvécio 74, Fábricas, São João del-Rei 36301-160, Minas Gerais, Brazil; (C.F.S.); (C.S.N.J.); (K.B.B.)
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11
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Yu RB, Quirino JP. Ionic liquids in electrokinetic chromatography. J Chromatogr A 2020; 1637:461801. [PMID: 33385743 DOI: 10.1016/j.chroma.2020.461801] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 12/11/2020] [Accepted: 12/12/2020] [Indexed: 01/22/2023]
Abstract
There is an interest in the application of ionic liquids as additives into the separation media to improve achiral and chiral separations in electrokinetic chromatography (EKC). This review will critically discuss the developments on the use of ionic liquids in the different modes of EKC during the last five years (2015-mid 2020). A healthy number of 48 research articles searched through Scopus were categorised into two: ionic liquids as sole pseudophase (micelles, microemulsions, ligand exchange pseudophase or molecular pseudophase) and ionic liquids with pseudophase (achiral or chiral). More than half of the papers dealt with chiral separations that were mostly facilitated by another additive or pseudophase. The role of ionic liquids for improvement of separations were analysed, and we provided some recommendations for further investigations. Finally, the use of ionic liquids in different on-line sample concentration or stacking methods (i.e., field enhancement and sweeping) was briefly discussed.
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Affiliation(s)
- Raymond B Yu
- Australian Centre for Research on Separation Science (ACROSS), School of Natural Sciences-Chemistry, University of Tasmania, Hobart, Tasmania 7001, Australia
| | - Joselito P Quirino
- Australian Centre for Research on Separation Science (ACROSS), School of Natural Sciences-Chemistry, University of Tasmania, Hobart, Tasmania 7001, Australia.
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12
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Nuchtavorn N, Dvořák M, Kubáň P. Paper-based molecularly imprinted-interpenetrating polymer network for on-spot collection and microextraction of dried blood spots for capillary electrophoresis determination of carbamazepine. Anal Bioanal Chem 2020; 412:2721-2730. [DOI: 10.1007/s00216-020-02523-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 02/07/2020] [Accepted: 02/14/2020] [Indexed: 12/11/2022]
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13
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Ma H, Liu T, Li J, Ding M, Gao XM, Chang YX. The in-capillary- 2,2-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid)-sweeping micellar electrokinetic chromatography - Diode array detector method for screening and quantifying trace natural antioxidants from Schisandra chinensis. J Chromatogr A 2019; 1593:147-155. [PMID: 30685187 DOI: 10.1016/j.chroma.2019.01.050] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 01/11/2019] [Accepted: 01/18/2019] [Indexed: 02/06/2023]
Abstract
An in-capillary 2,2-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid)-sweeping micellar electrokinetic chromatography-diode array detector (ABTS+-sweeping MEKC-DAD) method was developed and successfully applied to screening and quantifying antioxidative ingredients from natural products. The parameters affecting sweeping and separation were optimized including components of background electrolyte and sample matrix. Comparing with previously reported MEKC, the sensitivity enhancement factors of trace natural antioxidants obtained by this proposed method were from 17 to 167. The limit of detection was as low as 6 ng·mL-1. The results of other validation parameters including linearity, reproducibility, accuracy and recovery were satisfactory. Seven compounds including schizandrin, schisandrol B, schisantherin B, schisantherin A, schisanhenol, deoxyschizandrin, schisandrin B were identified as the main antioxidants in Schisandra chinensis. It was demonstrated that this developed in-capillary ABTS+-sweeping MEKC-DAD is simple, sensitive, reliable and rapid method for screening and quantifying trace antioxidants from natural products.
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Affiliation(s)
- Huifen Ma
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China; Key Laboratory of Formula of Traditional Chinese Medicine (Tianjin University of Traditional Chinese Medicine), Ministry of Education, Tianjin, 300193, China
| | - Tao Liu
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China; Key Laboratory of Formula of Traditional Chinese Medicine (Tianjin University of Traditional Chinese Medicine), Ministry of Education, Tianjin, 300193, China
| | - Jin Li
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China; Key Laboratory of Formula of Traditional Chinese Medicine (Tianjin University of Traditional Chinese Medicine), Ministry of Education, Tianjin, 300193, China
| | - Mingya Ding
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China; Key Laboratory of Formula of Traditional Chinese Medicine (Tianjin University of Traditional Chinese Medicine), Ministry of Education, Tianjin, 300193, China
| | - Xiu-Mei Gao
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China; Key Laboratory of Formula of Traditional Chinese Medicine (Tianjin University of Traditional Chinese Medicine), Ministry of Education, Tianjin, 300193, China.
| | - Yan-Xu Chang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China; Key Laboratory of Formula of Traditional Chinese Medicine (Tianjin University of Traditional Chinese Medicine), Ministry of Education, Tianjin, 300193, China.
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14
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Ghiasvand A, Feng Z, Quirino JP. Enrichment and Separation of Cationic, Neutral, and Chiral Analytes by Micelle to Cyclodextrin Stacking–Micellar Electrokinetic Chromatography. Anal Chem 2018; 91:1752-1757. [DOI: 10.1021/acs.analchem.8b03542] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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15
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Breadmore MC, Grochocki W, Kalsoom U, Alves MN, Phung SC, Rokh MT, Cabot JM, Ghiasvand A, Li F, Shallan AI, Keyon ASA, Alhusban AA, See HH, Wuethrich A, Dawod M, Quirino JP. Recent advances in enhancing the sensitivity of electrophoresis and electrochromatography in capillaries and microchips (2016-2018). Electrophoresis 2018; 40:17-39. [PMID: 30362581 DOI: 10.1002/elps.201800384] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 10/15/2018] [Accepted: 10/16/2018] [Indexed: 12/22/2022]
Abstract
One of the most cited limitations of capillary and microchip electrophoresis is the poor sensitivity. This review continues to update this series of biannual reviews, first published in Electrophoresis in 2007, on developments in the field of online/in-line concentration methods in capillaries and microchips, covering the period July 2016-June 2018. It includes developments in the field of stacking, covering all methods from field-amplified sample stacking and large-volume sample stacking, through to isotachophoresis, dynamic pH junction, and sweeping. Attention is also given to online or in-line extraction methods that have been used for electrophoresis.
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Affiliation(s)
- Michael C Breadmore
- Australian Centre for Research on Separation Science, Chemistry, School of Natural Science, University of Tasmania, Hobart, Tasmania, Australia
| | - Wojciech Grochocki
- Australian Centre for Research on Separation Science, Chemistry, School of Natural Science, University of Tasmania, Hobart, Tasmania, Australia.,Department of Biopharmaceutics and Pharmacodynamics, Medical University of Gdansk, Gdansk, Poland
| | - Umme Kalsoom
- Australian Centre for Research on Separation Science, Chemistry, School of Natural Science, University of Tasmania, Hobart, Tasmania, Australia.,ARC Centre of Excellence for Electromaterials Science (ACES), School of Natural Sciences, College of Science and Technology, University of Tasmania, Hobart, Australia
| | - Mónica N Alves
- Australian Centre for Research on Separation Science, Chemistry, School of Natural Science, University of Tasmania, Hobart, Tasmania, Australia
| | - Sui Ching Phung
- Australian Centre for Research on Separation Science, Chemistry, School of Natural Science, University of Tasmania, Hobart, Tasmania, Australia
| | | | - Joan M Cabot
- Australian Centre for Research on Separation Science, Chemistry, School of Natural Science, University of Tasmania, Hobart, Tasmania, Australia.,ARC Centre of Excellence for Electromaterials Science (ACES), School of Natural Sciences, College of Science and Technology, University of Tasmania, Hobart, Australia
| | - Alireza Ghiasvand
- Australian Centre for Research on Separation Science, Chemistry, School of Natural Science, University of Tasmania, Hobart, Tasmania, Australia.,Department of Chemistry, Lorestan University, Khoramabad, Iran
| | - Feng Li
- Australian Centre for Research on Separation Science, Chemistry, School of Natural Science, University of Tasmania, Hobart, Tasmania, Australia
| | - Aliaa I Shallan
- Future Industries Institute (FII), University of South Australia, Mawson Lakes, Australia.,Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Helwan University, Cairo, Egypt
| | - Aemi S Abdul Keyon
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia.,Centre for Sustainable Nanomaterials, Ibnu Sina Institute for Scientific and Industrial Research, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia
| | - Ala A Alhusban
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman, Jordan
| | - Hong Heng See
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia.,Centre for Sustainable Nanomaterials, Ibnu Sina Institute for Scientific and Industrial Research, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia
| | - Alain Wuethrich
- Centre for Personalized Nanomedicine, Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD, Australia
| | - Mohamed Dawod
- Department of Chemistry, University of Michigan, Ann Arbor, MI, USA
| | - Joselito P Quirino
- Australian Centre for Research on Separation Science, Chemistry, School of Natural Science, University of Tasmania, Hobart, Tasmania, Australia
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16
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Gładysz M, Król M, Woźniakiewicz M, Kościelniak P. The increase of detection sensitivity of micellar electrokinetic capillary chromatography method of stamp pad inks components by applying a sample stacking mode for the purpose of questioned document examination. Talanta 2018; 184:287-295. [DOI: 10.1016/j.talanta.2018.02.091] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 02/20/2018] [Accepted: 02/24/2018] [Indexed: 11/24/2022]
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17
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Song YZ, Zhang XX, Liu JJ, Fang F, Wu ZY. Electrokinetic stacking of electrically neutral analytes with paper-based analytical device. Talanta 2018; 182:247-252. [DOI: 10.1016/j.talanta.2018.01.090] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 01/15/2018] [Accepted: 01/30/2018] [Indexed: 11/26/2022]
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18
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Boublík M, Riesová M, Dubský P, Gaš B. Enhancement of the conductivity detection signal in capillary electrophoresis systems using neutral cyclodextrins as sweeping agents. Electrophoresis 2018; 39:1390-1398. [DOI: 10.1002/elps.201800027] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 02/08/2018] [Accepted: 02/08/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Milan Boublík
- Faculty of Science; Department of Physical and Macromolecular Chemistry; Charles University in Prague; Prague Czech Republic
| | - Martina Riesová
- Faculty of Science; Department of Physical and Macromolecular Chemistry; Charles University in Prague; Prague Czech Republic
| | - Pavel Dubský
- Faculty of Science; Department of Physical and Macromolecular Chemistry; Charles University in Prague; Prague Czech Republic
| | - Bohuslav Gaš
- Faculty of Science; Department of Physical and Macromolecular Chemistry; Charles University in Prague; Prague Czech Republic
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19
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Patel AV, Kawai T, Wang L, Rubakhin SS, Sweedler JV. Chiral Measurement of Aspartate and Glutamate in Single Neurons by Large-Volume Sample Stacking Capillary Electrophoresis. Anal Chem 2017; 89:12375-12382. [PMID: 29064231 PMCID: PMC5800852 DOI: 10.1021/acs.analchem.7b03435] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
d-Amino acids (d-AAs) are endogenous molecules found throughout the metazoan, the functions of which remain poorly understood. Measurements of low abundance and heterogeneously distributed d-AAs in complex biological samples, such as cells and multicellular structures of the central nervous system (CNS), require the implementation of sensitive and selective analytical approaches. In order to measure the d- and l-forms of aspartate and glutamate, we developed and applied a stacking chiral capillary electrophoresis (CE) with laser-induced fluorescence detection method. The achieved online analyte preconcentration led to a 480-fold enhancement of detection sensitivity relative to capillary zone electrophoresis, without impacting separation resolution or analysis time. Additionally, the effects of inorganic ions on sample preconcentration and CE separation were evaluated. The approach enabled the relative quantification of d-aspartate and d-glutamate in individual neurons mechanically isolated from the CNS of the sea slug Aplysia californica, a well characterized neurobiological model. Levels of these structurally similar d-AAs were significantly different in subpopulations of cells collected from the investigated neuronal clusters.
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Affiliation(s)
- Amit V. Patel
- Department of Chemistry and Beckman Institute, University of Illinois at Urbana-Champaign, IL 61801, USA
| | - Takayuki Kawai
- Department of Chemistry and Beckman Institute, University of Illinois at Urbana-Champaign, IL 61801, USA
| | - Liping Wang
- Department of Chemistry and Beckman Institute, University of Illinois at Urbana-Champaign, IL 61801, USA
| | - Stanislav S. Rubakhin
- Department of Chemistry and Beckman Institute, University of Illinois at Urbana-Champaign, IL 61801, USA
| | - Jonathan V. Sweedler
- Department of Chemistry and Beckman Institute, University of Illinois at Urbana-Champaign, IL 61801, USA
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20
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Hsieh SY, Wang CC, Kou HS, Wu SM. Dialkyl anionic surfactant in field-amplified sample injection and sweeping-micellar electrokinetic chromatography for determination of eight leanness-promoting β-agonists in animal feeds. J Pharm Biomed Anal 2017; 141:222-228. [PMID: 28454056 DOI: 10.1016/j.jpba.2017.04.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 04/01/2017] [Accepted: 04/01/2017] [Indexed: 11/26/2022]
Abstract
The beta-adrenergic agonists (β-agonists) working as repartitioning agents that make the carcass leaner and enhance the feeding efficiency in animals have been banned in the European Union, China and Taiwan. Here, traditional anionic surfactants, such as sodium dodecyl sulfate (SDS) were replaced with sodium di-(2-ethylhexyl)-sulfosuccinate (AOT) in field-amplified sample injection and sweeping-micellar electrokinetic chromatography (FASI-sweeping MEKC) for simultaneous analysis of eight β-agonists in animal feeds. The AOT vesicles provided a better resolution of β-agonists than micelles of SDS. The detection limits of the eight β-agonists were above 5ng/mL by using this stacking capillary electrophoresis (CE) method. In comparison of traditional MEKC method (sample injection, 1psi for 5s), the stacking strategy provided 400-2000 fold sensitivity enhancement. After method validation, this method was successfully applied for analyzing four animal feeds, and none β-agonist was detected. This strategy possessing good resolution of eight β-agonists was suitable for serving as a tool for routine analysis of animal feeds.
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Affiliation(s)
- Sung-Yu Hsieh
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Chun-Chi Wang
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Hwang-Shang Kou
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Shou-Mei Wu
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 807, Taiwan; Department of Chemistry, College of Sciences, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan; Food and Drug Administration, Ministry of Health and Welfare, Taiwan.
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21
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Liu L, Wan Q, Xu X, Duan S, Yang C. Combination of micelle collapse and field-amplified sample stacking in capillary electrophoresis for determination of trimethoprim and sulfamethoxazole in animal-originated foodstuffs. Food Chem 2017; 219:7-12. [DOI: 10.1016/j.foodchem.2016.09.118] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 09/02/2016] [Accepted: 09/18/2016] [Indexed: 11/25/2022]
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22
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The Concept of Stationary and Moving Boundaries Modelled as Accelerating or Decelerating Planes in the Understanding of Sweeping Processes Employed for Online Focusing in Capillary Zone Electrophoresis and Electrokinetic Chromatography. Chromatographia 2017. [DOI: 10.1007/s10337-017-3261-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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23
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Abstract
Microfluidics has been undergoing fast development in the past two decades due to its promising applications in biotechnology, medicine, and chemistry. Towards these applications, enhancing concentration sensitivity and detection resolution are indispensable to meet the detection limits because of the dilute sample concentrations, ultra-small sample volumes and short detection lengths in microfluidic devices. A variety of microfluidic techniques for concentrating analytes have been developed. This article presents an overview of analyte concentration techniques in microfluidics. We focus on discussing the physical mechanism of each concentration technique with its representative advancements and applications. Finally, the article is concluded by highlighting and discussing advantages and disadvantages of the reviewed techniques.
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Affiliation(s)
- Cunlu Zhao
- Key Laboratory of Thermo-Fluid Science and Engineering of MOE, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
- Correspondence: (C.Z.); (C.Y.); Tel.: +86-29-8266-3222 (C.Z.); +65-6790-4883 (C.Y.)
| | - Zhengwei Ge
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore;
| | - Chun Yang
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore;
- Correspondence: (C.Z.); (C.Y.); Tel.: +86-29-8266-3222 (C.Z.); +65-6790-4883 (C.Y.)
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24
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Adam V, Vaculovicova M. Nanomaterials for sample pretreatment prior to capillary electrophoretic analysis. Analyst 2017; 142:849-857. [DOI: 10.1039/c6an02608g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Nanomaterials are, in analytical science, used for a broad range of purposes, covering the area of sample pretreatment as well as separation, detection and identification of target molecules.
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Affiliation(s)
- Vojtech Adam
- Department of Chemistry and Biochemistry
- Mendel University in Brno
- CZ-613 00 Brno
- Czech Republic
- Central European Institute of Technology
| | - Marketa Vaculovicova
- Department of Chemistry and Biochemistry
- Mendel University in Brno
- CZ-613 00 Brno
- Czech Republic
- Central European Institute of Technology
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25
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Breadmore MC, Wuethrich A, Li F, Phung SC, Kalsoom U, Cabot JM, Tehranirokh M, Shallan AI, Abdul Keyon AS, See HH, Dawod M, Quirino JP. Recent advances in enhancing the sensitivity of electrophoresis and electrochromatography in capillaries and microchips (2014–2016). Electrophoresis 2016; 38:33-59. [DOI: 10.1002/elps.201600331] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 08/09/2016] [Accepted: 08/10/2016] [Indexed: 01/02/2023]
Affiliation(s)
- Michael C. Breadmore
- Australian Centre of Research on Separation Science, School of Physical Science University of Tasmania Hobart Tasmania Australia
- ARC Centre of Excellence for Electromaterials Science, School of Physical Science University of Tasmania Hobart Tasmania Australia
- ASTech, ARC Training Centre for Portable Analytical Separation Technologies, School of Physical Science University of Tasmania Hobart Tasmania Australia
| | - Alain Wuethrich
- Australian Centre of Research on Separation Science, School of Physical Science University of Tasmania Hobart Tasmania Australia
| | - Feng Li
- Australian Centre of Research on Separation Science, School of Physical Science University of Tasmania Hobart Tasmania Australia
| | - Sui Ching Phung
- Australian Centre of Research on Separation Science, School of Physical Science University of Tasmania Hobart Tasmania Australia
| | - Umme Kalsoom
- Australian Centre of Research on Separation Science, School of Physical Science University of Tasmania Hobart Tasmania Australia
| | - Joan M. Cabot
- Australian Centre of Research on Separation Science, School of Physical Science University of Tasmania Hobart Tasmania Australia
- ARC Centre of Excellence for Electromaterials Science, School of Physical Science University of Tasmania Hobart Tasmania Australia
| | - Masoomeh Tehranirokh
- ASTech, ARC Training Centre for Portable Analytical Separation Technologies, School of Physical Science University of Tasmania Hobart Tasmania Australia
| | - Aliaa I. Shallan
- Department of Analytical Chemistry, Faculty of Pharmacy Helwan University Cairo Egypt
| | - Aemi S. Abdul Keyon
- Department of Chemistry, Faculty of Science Universiti Teknologi Malaysia Johor Bahru Johor Malaysia
| | - Hong Heng See
- Department of Chemistry, Faculty of Science Universiti Teknologi Malaysia Johor Bahru Johor Malaysia
- Centre for Sustainable Nanomaterials, Ibnu Sina Institute for Scientific and industrial Research Universiti Teknologi Malaysia Johor Bahru Johor Malaysia
| | - Mohamed Dawod
- Department of Chemistry University of Michigan Ann Arbor MI USA
| | - Joselito P. Quirino
- Australian Centre of Research on Separation Science, School of Physical Science University of Tasmania Hobart Tasmania Australia
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26
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Approaching over 10 000-fold sensitivity increase in chiral capillary electrophoresis: Cation-selective exhaustive injection and sweeping cyclodextrin-modified micellar electrokinetic chromatography. Electrophoresis 2016; 37:2970-2976. [DOI: 10.1002/elps.201600324] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 08/07/2016] [Accepted: 08/11/2016] [Indexed: 11/07/2022]
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27
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Three-step stacking by field-enhanced sample injection, sweeping, and micelle to solvent stacking in capillary electrophoresis: Anionic analytes. J Chromatogr A 2016; 1442:140-3. [DOI: 10.1016/j.chroma.2016.03.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 02/09/2016] [Accepted: 03/01/2016] [Indexed: 11/19/2022]
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28
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Oukacine F, Quirino JP, Mesbah K, Taverna M. Capillary electrophoretic focusing of covalently derivatized protein induced by surfactant. Electrophoresis 2016; 37:1151-4. [DOI: 10.1002/elps.201600030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 02/21/2016] [Accepted: 02/22/2016] [Indexed: 01/10/2023]
Affiliation(s)
- Farid Oukacine
- Université Grenoble Alpes; DPM UMR 5063; CNRS Grenoble France
| | - Joselito P. Quirino
- Australian Centre for Research on Separation Science, School of Physical Sciences-Chemistry; University of Tasmania; Hobart Tasmania Australia
| | - Kiarach Mesbah
- Inst Galien Paris Sud; Fac Pharm; 5 Rue JB Clement, F-92290 Chatenay Malabry France
| | - Myriam Taverna
- Inst Galien Paris Sud; Fac Pharm; 5 Rue JB Clement, F-92290 Chatenay Malabry France
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29
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Off-line and On-line Enrichment of α-Aminocephalosporins for Their Analysis in Surface Water Samples Using CZE Coupled to LIF. Chromatographia 2016. [DOI: 10.1007/s10337-015-3010-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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30
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Ciura K, Kowalski P, Nowakowska J, Markuszewski M, Bączek T, Dziomba S. Sweeping of hydrophobic amines under inhomogeneous electric field and low surfactant concentration in micellar electrokinetic chromatography. Electrophoresis 2015; 37:1161-5. [DOI: 10.1002/elps.201500436] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Revised: 11/04/2015] [Accepted: 11/10/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Krzesimir Ciura
- Department of Physical Chemistry, Faculty of Pharmacy; Medical University of Gdansk; Gdańsk Poland
| | - Piotr Kowalski
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy; Medical University of Gdansk; Gdańsk Poland
| | - Joanna Nowakowska
- Department of Physical Chemistry, Faculty of Pharmacy; Medical University of Gdansk; Gdańsk Poland
| | - Michał Markuszewski
- Department of Biopharmacy, Faculty of Pharmacy; Medical University of Gdansk; Gdańsk Poland
| | - Tomasz Bączek
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy; Medical University of Gdansk; Gdańsk Poland
| | - Szymon Dziomba
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy; Medical University of Gdansk; Gdańsk Poland
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31
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Cheng HL, Tsai YH, Hsu WL, Lin YH. An on-line stacking capillary electrophoresis method for the analysis of Δ9-tetrahydrocannabinol and its metabolites. J Chromatogr A 2015; 1426:226-32. [DOI: 10.1016/j.chroma.2015.11.032] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 10/31/2015] [Accepted: 11/09/2015] [Indexed: 11/25/2022]
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32
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Grochocki W, Markuszewski MJ, Quirino JP. Three-step stacking of cationic analytes by field-enhanced sample injection, sweeping, and micelle to solvent stacking in capillary electrophoresis. J Chromatogr A 2015; 1424:111-7. [DOI: 10.1016/j.chroma.2015.10.089] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 10/08/2015] [Accepted: 10/26/2015] [Indexed: 12/11/2022]
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33
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Headspace In-Tube Microextraction Coupled with Capillary Electrophoresis for Detection of Bromophenols in Water and Trachypenaeus curvirostris. FOOD ANAL METHOD 2015. [DOI: 10.1007/s12161-015-0351-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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34
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Derivatisation for separation and detection in capillary electrophoresis (2012-2015). Electrophoresis 2015; 37:45-55. [DOI: 10.1002/elps.201500290] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 07/27/2015] [Accepted: 07/27/2015] [Indexed: 12/22/2022]
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35
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Hernández-Mesa M, Airado-Rodríguez D, García-Campaña AM, Cruces-Blanco C. Development of an ultrasensitive stacking technique for 5-nitroimidazole determination in untreated biological fluids by micellar electrokinetic chromatography. Electrophoresis 2015; 36:2538-41. [DOI: 10.1002/elps.201500193] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 06/25/2015] [Accepted: 07/06/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Maykel Hernández-Mesa
- Department of Analytical Chemistry; Faculty of Sciences, University of Granada; Granada Spain
| | - Diego Airado-Rodríguez
- Department of Analytical Chemistry; Faculty of Sciences, University of Granada; Granada Spain
| | - Ana M. García-Campaña
- Department of Analytical Chemistry; Faculty of Sciences, University of Granada; Granada Spain
| | - Carmen Cruces-Blanco
- Department of Analytical Chemistry; Faculty of Sciences, University of Granada; Granada Spain
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36
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Kartsova LA, Bessonova EA. Biomedical applications of capillary electrophoresis. RUSSIAN CHEMICAL REVIEWS 2015. [DOI: 10.1070/rcr4492] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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37
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Interface-free two-dimensional heart-cutting capillary electrophoresis for the separation and stacking of anionic and neutral analytes. J Sep Sci 2015; 38:2532-7. [DOI: 10.1002/jssc.201500268] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Revised: 04/13/2015] [Accepted: 04/14/2015] [Indexed: 02/01/2023]
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38
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Moreno-González D, Huertas-Pérez JF, García-Campaña AM, Gámiz-Gracia L. Vortex-assisted surfactant-enhanced emulsification liquid–liquid microextraction for the determination of carbamates in juices by micellar electrokinetic chromatography tandem mass spectrometry. Talanta 2015; 139:174-80. [DOI: 10.1016/j.talanta.2015.02.057] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Revised: 02/25/2015] [Accepted: 02/28/2015] [Indexed: 01/09/2023]
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39
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Tascon M, Benavente F, Sanz-Nebot V, Gagliardi LG. A high performance system to study the influence of temperature in on-line solid-phase extraction capillary electrophoresis. Anal Chim Acta 2015; 863:78-85. [DOI: 10.1016/j.aca.2014.12.053] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Revised: 12/24/2014] [Accepted: 12/27/2014] [Indexed: 01/27/2023]
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40
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Oszwałdowski S, Kubáň P. Capillary electrophoresis study on phase of mixed micelles and its role in transport phenomena of particles. Anal Chim Acta 2015; 864:85-93. [DOI: 10.1016/j.aca.2015.01.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 01/09/2015] [Accepted: 01/12/2015] [Indexed: 12/27/2022]
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41
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Breadmore MC, Tubaon RM, Shallan AI, Phung SC, Abdul Keyon AS, Gstoettenmayr D, Prapatpong P, Alhusban AA, Ranjbar L, See HH, Dawod M, Quirino JP. Recent advances in enhancing the sensitivity of electrophoresis and electrochromatography in capillaries and microchips (2012-2014). Electrophoresis 2015; 36:36-61. [DOI: 10.1002/elps.201400420] [Citation(s) in RCA: 132] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 09/25/2014] [Accepted: 09/25/2014] [Indexed: 12/15/2022]
Affiliation(s)
- Michael C. Breadmore
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
| | - Ria Marni Tubaon
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
| | - Aliaa I. Shallan
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
| | - Sui Ching Phung
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
| | - Aemi S. Abdul Keyon
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
- Faculty of Science; Department of Chemistry, Universiti Teknologi Malaysia; Johor Malaysia
| | - Daniel Gstoettenmayr
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
| | - Pornpan Prapatpong
- Faculty of Pharmacy; Department of Pharmaceutical Chemistry, Mahidol University; Rajathevee Bangkok Thailand
| | - Ala A. Alhusban
- Faculty of Health Sciences, School of Pharmacy; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
| | - Leila Ranjbar
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
| | - Hong Heng See
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
- Ibnu Sina Institute for Fundamental Science Studies; Universiti Teknologi Malaysia; Johor Malaysia
| | - Mohamed Dawod
- Department of Chemistry; University of Michigan; Ann Arbor MI USA
- Faculty of Pharmacy; Department of Analytical Chemistry, Al-Azhar University; Cairo Egypt
| | - Joselito P. Quirino
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
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42
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Dasgupta S, Chavali R, Kumar Gunda NS, Mitra SK. Hollow fiber concentrator for water quality monitoring: role of surfactant based elution fluids. RSC Adv 2015. [DOI: 10.1039/c5ra09662f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Simple and efficient concentrators are indispensable to the development of portable biosensor based detection platforms for the determination of microbial contamination in water.
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Affiliation(s)
- Saumyadeb Dasgupta
- Department of Mechanical Engineering
- Lassonde School of Engineering
- York University
- Toronto
- Canada
| | - Ravi Chavali
- Department of Mechanical Engineering
- Lassonde School of Engineering
- York University
- Toronto
- Canada
| | - Naga Siva Kumar Gunda
- Department of Mechanical Engineering
- Lassonde School of Engineering
- York University
- Toronto
- Canada
| | - Sushanta K. Mitra
- Department of Mechanical Engineering
- Lassonde School of Engineering
- York University
- Toronto
- Canada
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43
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Liu JX, Aerts JT, Rubakhin SS, Zhang XX, Sweedler JV. Analysis of endogenous nucleotides by single cell capillary electrophoresis-mass spectrometry. Analyst 2014; 139:5835-42. [PMID: 25212237 PMCID: PMC4329915 DOI: 10.1039/c4an01133c] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Analytical technologies that enable investigations at the single cell level facilitate a range of studies; here a lab-fabricated capillary electrophoresis-electrospray ionization-mass spectrometry (CE-ESI-MS) platform was used to analyze anionic metabolites from individual Aplysia californica neurons. The system employs a customized coaxial sheath-flow nanospray interface connected to a separation capillary, with the sheath liquid and separation buffer optimized to ensure a stable spray. The method provided good repeatability of separation and reliable detection sensitivity for 16 mono-, di- and triphosphate nucleosides. For a range of anionic analytes, including cyclic adenosine monophosphate (cAMP), adenosine diphosphate (ADP) and adenosine triphosphate (ATP), the detection limits were in the low nanomolar range (<22 nM). A large Aplysia R2 neuron was used to demonstrate the ability of CE-ESI-MS to quantitatively characterize anionic metabolites within individual cells, with 15 nucleotides and derivatives detected. Following the method validation process, we probed smaller, 60 μm diameter Aplysia sensory neurons where sample stacking was used as a simple on-line analyte preconcentration approach. The calculated energy balance ([ATP] + 0.5 × [ADP])/([AMP] + [ADP] + [ATP]) of these cells was comparable with the value obtained from bulk samples.
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Affiliation(s)
- Jing-Xin Liu
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois,USA
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education; Institute of Analytical Chemistry, College of Chemistry, Peking University, Beijing, China
| | - Jordan T. Aerts
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois,USA
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois,USA
| | - Stanislav S. Rubakhin
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois,USA
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois,USA
| | - Xin-Xiang Zhang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education; Institute of Analytical Chemistry, College of Chemistry, Peking University, Beijing, China
| | - Jonathan V. Sweedler
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois,USA
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois,USA
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44
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Harvanová J, Bloom L. Capillary Electrophoresis Technique for Metal Species Determination: A Review. J LIQ CHROMATOGR R T 2014. [DOI: 10.1080/10826076.2014.941264] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Jarmila Harvanová
- a Analytical Solutions Limited , Toronto , Ontario , Canada
- b Department of Chemistry, Biochemistry, and Biophysics , The University of Veterinary Medicine and Pharmacy in Košice , Komenského , Košice , Slovakia
| | - Lynda Bloom
- a Analytical Solutions Limited , Toronto , Ontario , Canada
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45
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Zhou XJ, Chen J, Shi YP. Determination of Amino Acids in Plasma and Nutritional Supplements by Capillary Electrophoresis with Copper(II) Coordination. ANAL LETT 2014. [DOI: 10.1080/00032719.2014.936019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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46
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Kukusamude C, Srijaranai S, Kato M, Quirino JP. Cloud point sample clean-up and capillary zone electrophoresis with field enhanced sample injection and micelle to solvent stacking for the analysis of herbicides in milk. J Chromatogr A 2014; 1351:110-4. [DOI: 10.1016/j.chroma.2014.05.050] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Revised: 05/15/2014] [Accepted: 05/16/2014] [Indexed: 10/25/2022]
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47
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Can neutral analytes be concentrated by transient isotachophoresis in micellar electrokinetic chromatography and how much? J Chromatogr A 2014; 1345:212-8. [PMID: 24797392 DOI: 10.1016/j.chroma.2014.04.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Revised: 04/06/2014] [Accepted: 04/07/2014] [Indexed: 02/03/2023]
Abstract
Transient isotachophoresis (tITP) is a versatile sample preconcentration technique that uses ITP to focus electrically charged analytes at the initial stage of CE analysis. However, according to the ruling principle of tITP, uncharged analytes are beyond its capacity while being separated and detected by micellar electrokinetic chromatography (MEKC). On the other hand, when these are charged micelles that undergo the tITP focusing, one can anticipate the concentration effect, resulting from the formation of transient micellar stack at moving sample/background electrolyte (BGE) boundary, which increasingly accumulates the analytes. This work expands the enrichment potential of tITP for MEKC by demonstrating the quantitative analysis of uncharged metal-based drugs from highly saline samples and introducing to the BGE solution anionic surfactants and buffer (terminating) co-ions of different mobility and concentration to optimize performance. Metallodrugs of assorted lipophilicity were chosen so as to explore whether their varying affinity toward micelles plays the role. In addition to altering the sample and BGE composition, optimization of the detection capability was achieved due to fine-tuning operational variables such as sample volume, separation voltage and pressure, etc. The results of optimization trials shed light on the mechanism of micellar tITP and render effective determination of selected drugs in human urine, with practical limits of detection using conventional UV detector.
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Tubaon RM, Haddad PR, Quirino JP. High-sensitivity analysis of anionic sulfonamides by capillary electrophoresis using a synergistic stacking approach. J Chromatogr A 2014; 1349:129-34. [PMID: 24856966 DOI: 10.1016/j.chroma.2014.05.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Revised: 03/19/2014] [Accepted: 05/02/2014] [Indexed: 11/19/2022]
Abstract
A synergistic stacking approach whereby field-enhanced sample injection and micelle-to-solvent stacking in capillary zone electrophoresis are combined has been developed and has been applied to the separation and quantification of anionic sulfonamides. Electrokinetic injection of the sample in a low conductivity alkaline diluent was performed for 90s at -15kV. Micelle-to-solvent stacking was then undertaken by hydrodynamic injection of micellar cetyltrimethylammonium bromide solution prior to the electrokinetic injection of sample that also contained 50% methanol. This combined stacking approach, when compared to a typical hydrostatic injection, provided improvements in peak height and corrected peak area in the range of 397-1024 and 758-1246, respectively. Limits of quantification in the range of 0.01-0.03μg/mL were obtained for sulfamerazine, sulfamethazine and sulfamethizole and were sufficient for the determination of these analytes in river water. The percentage recovery and accuracy values obtained for a fortified river water sample that had been subjected to sample preparation by evaporation and reconstitution with diluent were 74-135%. Intra-day and inter-day repeatabilities for migration time, peak height, and corrected peak area were in the range 0.5-5.0% (percentage relative standard deviation, n=8) and these relatively low values were attributed to the use of a stable capillary coating established by the successive multiple ionic-polymer layer technique.
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Affiliation(s)
- Ria Marni Tubaon
- Australian Centre for Research on Separation Science, School of Physical Sciences-Chemistry, University of Tasmania, Hobart, Tasmania 7001, Australia
| | - Paul R Haddad
- Australian Centre for Research on Separation Science, School of Physical Sciences-Chemistry, University of Tasmania, Hobart, Tasmania 7001, Australia
| | - Joselito P Quirino
- Australian Centre for Research on Separation Science, School of Physical Sciences-Chemistry, University of Tasmania, Hobart, Tasmania 7001, Australia.
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Kukusamude C, Srijaranai S, Quirino JP. Anionic microemulsion to solvent stacking for on-line sample concentration of cationic analytes in capillary electrophoresis. Electrophoresis 2014; 35:1478-83. [DOI: 10.1002/elps.201300512] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2013] [Revised: 02/02/2014] [Accepted: 02/03/2014] [Indexed: 11/09/2022]
Affiliation(s)
- Chunyapuk Kukusamude
- Australian Centre for Research on Separation Science (ACROSS); School of Physical Sciences-Chemistry; University of Tasmania; Hobart Australia
- Materials Chemistry Research Unit; Department of Chemistry and Center of Excellence for Innovation in Chemistry; Faculty of Science; Khon Kaen University; Khon Kaen Thailand
| | - Supalax Srijaranai
- Materials Chemistry Research Unit; Department of Chemistry and Center of Excellence for Innovation in Chemistry; Faculty of Science; Khon Kaen University; Khon Kaen Thailand
| | - Joselito P. Quirino
- Australian Centre for Research on Separation Science (ACROSS); School of Physical Sciences-Chemistry; University of Tasmania; Hobart Australia
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Fang R, Yi LX, Shao YX, Zhang L, Chen GH. ON-LINE PRECONCENTRATION IN CAPILLARY ELECTROPHORESIS FOR ANALYSIS OF AGROCHEMICAL RESIDUES. J LIQ CHROMATOGR R T 2014. [DOI: 10.1080/10826076.2013.794740] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Rou Fang
- a College of Food and Bioengineering , Jiangsu University , Zhenjiang , China
| | - Ling-Xiao Yi
- a College of Food and Bioengineering , Jiangsu University , Zhenjiang , China
| | - Yu-Xiu Shao
- a College of Food and Bioengineering , Jiangsu University , Zhenjiang , China
| | - Li Zhang
- a College of Food and Bioengineering , Jiangsu University , Zhenjiang , China
| | - Guan-Hua Chen
- a College of Food and Bioengineering , Jiangsu University , Zhenjiang , China
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