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Ta HY, Perquis L, Balayssac S, Déjugnat C, Wodrinski A, Collin F, Gilard V, Couderc F. Separation of unsaturated C18 fatty acids using perfluorinated-micellar electrokinetic chromatography: I. Optimization and separation process. Electrophoresis 2023; 44:431-441. [PMID: 36398472 PMCID: PMC10098715 DOI: 10.1002/elps.202200151] [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: 06/10/2022] [Revised: 10/27/2022] [Accepted: 11/09/2022] [Indexed: 11/19/2022]
Abstract
Ammonium perfluorooctanoate (APFOA) was used as a surfactant for the separation of free unsaturated C18 fatty acids by micellar electrokinetic chromatography. A simple background electrolyte of 50 mM APFOA water/methanol (90:10, v/v) at pH = 10 enabled the repeatable separation of oleic acid, elaidic acid, linoleic acid, and alpha-linolenic acid in less than 20 min. Separation conditions were optimized regarding various parameters (organic solvent, counterion, APFOA concentration, and pH). Because the repulsive interactions between fluorocarbon chains and hydrogenated chains are known to lead to segregation and phase separation, the choice of perfluorinated micelles to separate such perhydrogenated long-chain acids could appear astonishing. Therefore, the critical micelle concentration, the charge density, and the mobility of the micelles have been determined, resulting in a first description of the separation process.
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Affiliation(s)
- Hai Yen Ta
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, Toulouse, France
| | - Lucie Perquis
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, Toulouse, France
| | - Stéphane Balayssac
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, Toulouse, France
| | - Christophe Déjugnat
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, Toulouse, France
| | - Alexandre Wodrinski
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, Toulouse, France
| | - Fabrice Collin
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, Toulouse, France
| | - Véronique Gilard
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, Toulouse, France
| | - François Couderc
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, Toulouse, France
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Determination of artemisinin and its analogs in Artemisia annua extracts by capillary electrophoresis - Mass spectrometry. J Pharm Biomed Anal 2021; 202:114131. [PMID: 34023721 DOI: 10.1016/j.jpba.2021.114131] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 05/06/2021] [Accepted: 05/07/2021] [Indexed: 11/20/2022]
Abstract
The applicability of micellar electrokinetic capillary chromatography (MEKC) with mass spectrometric detection for the determination of artemisinin and its analogs (e.g. ascaridole, artemisia ketone, casticin, deoxyartemisinin, arteannuic acid, artemetin, dihydroartemisinic acid) was studied. 40 mM ammonium perfluorooctanoate (pH 9.5) with 2% isopropanol (IPA) was used as background electrolyte (BGE) and the sheath liquid was 50 % (v/v) IPA:water containing 0.1 % formic acid. Separation was performed in a bare fused silica capillary. Artemisinin was detected at 283.1545 m/z as [M+H]+ ion. For artemisinin the linear range was found to be 0.6 μg/mL - 60 μg/mL and the limit of detection was 0.18 μg/mL. The RSD% values were 2.6 % for migration times and 4.8 % for peak areas (N = 6). In the ethanolic extracts of Artemisia annua leaves, in addition to artemisinin, a large number of other organic components could be separated and determined. MEKC-MS revealed the existence of diastereomers of several compounds (artemisinin, deoxyartemisinin, dihydroartemisinic acid) in the plant extracts.
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3
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Open tubular capillary electrochromatography with block co-polymer coating for separation of β-lactam antibiotics. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2018.03.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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4
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Schlecht J, Jooß K, Neusüß C. Two-dimensional capillary electrophoresis-mass spectrometry (CE-CE-MS): coupling MS-interfering capillary electromigration methods with mass spectrometry. Anal Bioanal Chem 2018; 410:6353-6359. [PMID: 29862434 DOI: 10.1007/s00216-018-1157-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 05/17/2018] [Accepted: 05/23/2018] [Indexed: 11/24/2022]
Abstract
Electromigration separation techniques often demand certain compounds in the electrolyte to achieve the required selectivity and efficiency. These compounds, including the electrolyte itself, ampholytes, polymeric compounds for sieving, complexing agents, tensides, etc. are often non-volatile. Thus, interference with the electrospray ionization process is a common issue, impeding direct coupling of such electrolyte systems to mass spectrometry. Still, several options exist to obtain mass spectra after separation, including offline fractionation, alternative ionization, dilution, or the change to volatile constituents. In the first part of this article, these methods are discussed. However, all of these options are a compromise of separation performance and sensitivity of mass spectrometric detection. Two-dimensional capillary electrophoresis-mass spectrometry (CE-CE-MS) systems represent a promising alternative to the aforementioned challenges, as they allow the use of existing methods with best separation performance in combination with sensitive mass characterization. In this context, the second part of this article is dedicated to the advantages, limitations, and applications of this approach. Finally, an outlook towards future developments is given.
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Affiliation(s)
- Johannes Schlecht
- Faculty of Chemistry, Aalen University, Beethovenstrasse 1, 73430, Aalen, Germany.,Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Philosophenweg 14, 07743, Jena, Germany
| | - Kevin Jooß
- Faculty of Chemistry, Aalen University, Beethovenstrasse 1, 73430, Aalen, Germany.,Research Unit Analytical BioGeoChemistry, Helmholtz Zentrum München, Ingolstädter Landstr. 1, 85764, Neuherberg, Germany
| | - Christian Neusüß
- Faculty of Chemistry, Aalen University, Beethovenstrasse 1, 73430, Aalen, Germany.
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Moreno-González D, Haselberg R, Gámiz-Gracia L, García-Campaña AM, de Jong GJ, Somsen GW. Fully compatible and ultra-sensitive micellar electrokinetic chromatography-tandem mass spectrometry using sheathless porous-tip interfacing. J Chromatogr A 2017; 1524:283-289. [PMID: 28992989 DOI: 10.1016/j.chroma.2017.09.075] [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: 07/10/2017] [Revised: 09/26/2017] [Accepted: 09/30/2017] [Indexed: 11/26/2022]
Abstract
The on-line coupling of micellar electrokinetic chromatography and mass spectrometry (MEKC-MS) is often hampered by incompatibility problems leading to reduced separation performance and unfavorable limits of detection (LODs). Here we propose a new selective and highly sensitive MEKC-MS/MS method employing a sheathless porous-tip interface in combination with a micellar phase comprised of semi-volatile surfactant molecules. Carbamate pesticides (CRBs) were selected as representative model compounds being neutral toxic pollutants potentially present at trace levels in environmental water samples. A background electrolyte of 75mM perfluorooctanoic acid adjusted to pH 9.0 with ammonium hydroxide allowed efficient separation of 15 CRBs and appeared fully compatible with electrospray ionization (ESI)-MS. Interfacing parameters, such as the distance between the capillary tip and mass-spectrometer inlet, ESI voltage, and dry gas temperature and flow were optimized in order to attain good spray stability and high analyte signal-to-noise ratios. For CRBs the LODs ranged from 0.2 to 3.9ngL-1 (13nL injected, i.e., 2% of capillary volume), representing an improvement for certain CRBs of more than 300-fold when compared with conventional sheath-liquid interfacing. Good linearity (R2>0.99) and satisfactory reproducibility were obtained for all CRBs with interday RSD values for peak area and migration time of 4.0-11.3% and below 1.5%, respectively. Analysis of spiked mineral water showed that the new MEKC-MS/MS method allows selective and quantitative determination of CRB concentrations below the maximum residue limit of 100ngL-1 without the need for sample preconcentration.
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Affiliation(s)
- David Moreno-González
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Campus Fuentenueva, E-18071 Granada, Spain
| | - Rob Haselberg
- Division of BioAnalytical Chemistry, AIMMS research group BioMolecular Analysis, Faculty of Sciences, Vrije Universiteit Amsterdam, de Boelelaan 1085, 1081 HV Amsterdam, The Netherlands.
| | - Laura Gámiz-Gracia
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Campus Fuentenueva, E-18071 Granada, Spain
| | - Ana M García-Campaña
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Campus Fuentenueva, E-18071 Granada, Spain
| | - Gerhardus J de Jong
- Biomolecular Analysis, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Govert W Somsen
- Division of BioAnalytical Chemistry, AIMMS research group BioMolecular Analysis, Faculty of Sciences, Vrije Universiteit Amsterdam, de Boelelaan 1085, 1081 HV Amsterdam, The Netherlands
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Enantioselective capillary electrophoresis-mass spectrometry of amino acids in cerebrospinal fluid using a chiral derivatizing agent and volatile surfactant. Anal Chim Acta 2016; 940:150-8. [PMID: 27662770 DOI: 10.1016/j.aca.2016.08.040] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 08/23/2016] [Accepted: 08/24/2016] [Indexed: 12/12/2022]
Abstract
The sensitivity of coupled enantioselective capillary electrophoresis-mass spectrometry (CE-MS) of amino acids (AAs) is often hampered by the chiral selectors in the background electrolyte (BGE). A new method is presented in which the use of a chiral selector is circumvented by employing (+)-1-(9-fluorenyl)ethyl chloroformate (FLEC) as chiral AA derivatizing agent and ammonium perfluorooctanoate (APFO) as a volatile pseudostationary phase for separation of the formed diastereomers. Efficient AA derivatization with FLEC was completed within 10 min. Infusion experiments showed that the APFO concentration hardly affects the MS response of FLEC-AAs and presents significantly less ion suppression than equal concentrations of ammonium acetate. The effect of the pH and APFO concentration of the BGE and the capillary temperature were studied in order to achieve optimized enantioseparation. Optimization of CE-MS parameters, such as sheath-liquid composition and flow rate, ESI and MS settings was performed in order to prevent analyte fragmentation and achieve sensitive detection. Selective detection and quantification of 14 chiral proteinogenic AAs was achieved with chiral resolution between 1.2 and 8.6, and limits of detection ranging from 130 to 630 nM injected concentration. Aspartic acid and glutamic acid were detected, but not enantioseparated. The optimized method was applied to the analysis of chiral AAs in cerebrospinal fluid (CSF). Good linearity (R(2) > 0.99) and acceptable peak area and electrophoretic mobility repeatability (RSDs below 21% and 2.4%, respectively) were achieved for the chiral proteinogenic AAs, with sensitivity and chiral resolution mostly similar to obtained for standard solutions. Next to l-AAs, endogenous levels of d-serine and d-glutamine could be measured in CSF revealing enantiomeric ratios of 4.8%-8.0% and 0.34%-0.74%, respectively, and indicating the method's potential for the analysis of low concentrations of d-AAs in presence of abundant l-AAs.
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Determination of selected synthetic cannabinoids and their metabolites by micellar electrokinetic chromatography – mass spectrometry employing perfluoroheptanoic acid-based micellar phase. Talanta 2016; 150:568-76. [DOI: 10.1016/j.talanta.2015.12.078] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 12/27/2015] [Accepted: 12/30/2015] [Indexed: 11/22/2022]
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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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Modir-Rousta A, Bottaro CS. New pressure-assisted sweeping on-line preconcentration for highly polar environmentally relevant nitrosamines: Part 2. Cationic and anionic surfactants with zero-flow capillaries. Electrophoresis 2015; 36:1016-23. [DOI: 10.1002/elps.201400232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 12/16/2014] [Accepted: 12/29/2014] [Indexed: 11/08/2022]
Affiliation(s)
- Ali Modir-Rousta
- Department of Chemistry; Memorial University of Newfoundland; St. John's NL Canada
| | - Christina S. Bottaro
- Department of Chemistry; Memorial University of Newfoundland; St. John's NL Canada
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Švidrnoch M, Lněníčková L, Válka I, Ondra P, Maier V. Utilization of micellar electrokinetic chromatography–tandem mass spectrometry employed volatile micellar phase in the analysis of cathinone designer drugs. J Chromatogr A 2014; 1356:258-65. [DOI: 10.1016/j.chroma.2014.06.058] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Revised: 06/13/2014] [Accepted: 06/17/2014] [Indexed: 10/25/2022]
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11
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D’Orazio G, Asensio-Ramos M, Hernández-Borges J, Fanali S, Rodríguez-Delgado MÁ. Estrogenic compounds determination in water samples by dispersive liquid–liquid microextraction and micellar electrokinetic chromatography coupled to mass spectrometry. J Chromatogr A 2014; 1344:109-21. [DOI: 10.1016/j.chroma.2014.04.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Revised: 04/02/2014] [Accepted: 04/03/2014] [Indexed: 11/16/2022]
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12
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MEKC-MS/MS method using a volatile surfactant for the simultaneous determination of 12 synthetic cannabinoids. J Sep Sci 2013; 37:304-7. [DOI: 10.1002/jssc.201301132] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Revised: 11/13/2013] [Accepted: 11/13/2013] [Indexed: 11/07/2022]
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13
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Moreno-González D, Toraño JS, Gámiz-Gracia L, García-Campaña AM, de Jong GJ, Somsen GW. Micellar electrokinetic chromatography-electrospray ionization mass spectrometry employing a volatile surfactant for the analysis of amino acids in human urine. Electrophoresis 2013; 34:2615-22. [DOI: 10.1002/elps.201300247] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Revised: 07/01/2013] [Accepted: 07/02/2013] [Indexed: 11/08/2022]
Affiliation(s)
| | - Javier Sastre Toraño
- Department of Pharmaceutical Sciences, Utrecht University; Utrecht; The Netherlands
| | | | | | - Gerhardus J. de Jong
- Department of Pharmaceutical Sciences, Utrecht University; Utrecht; The Netherlands
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Santaladchaiyakit Y, Srijaranai S, Burakham R. Methodological aspects of sample preparation for the determination of carbamate residues: A review. J Sep Sci 2012; 35:2373-89. [DOI: 10.1002/jssc.201200431] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yanawath Santaladchaiyakit
- Department of Chemistry; Faculty of Engineering; Rajamangala University of Technology Isan; KhonKaen Thailand
| | - Supalax Srijaranai
- Materials Chemistry Research Unit; Department of Chemistry and Center of Excellence for Innovation in Chemistry; Faculty of Science, KhonKaen University; KhonKaen Thailand
| | - Rodjana Burakham
- Materials Chemistry Research Unit; Department of Chemistry and Center of Excellence for Innovation in Chemistry; Faculty of Science, KhonKaen University; KhonKaen Thailand
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Moreno-González D, Gámiz-Gracia L, Bosque-Sendra JM, García-Campaña AM. Dispersive liquid–liquid microextraction using a low density extraction solvent for the determination of 17 N-methylcarbamates by micellar electrokinetic chromatography–electrospray–mass spectrometry employing a volatile surfactant. J Chromatogr A 2012; 1247:26-34. [DOI: 10.1016/j.chroma.2012.05.048] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2012] [Revised: 05/10/2012] [Accepted: 05/12/2012] [Indexed: 10/28/2022]
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Vieira DB, Crowell AMJ, Doucette AA. Perfluorooctanoic acid and ammonium perfluorooctanoate: volatile surfactants for proteome analysis? RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2012; 26:523-531. [PMID: 22302492 DOI: 10.1002/rcm.6127] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
RATIONALE Fluorinated surfactants are being explored as mass spectrometry (MS)-friendly alternatives to sodium dodecyl sulfate (SDS) for proteome analysis. Previous work demonstrates perfluorooctanoic acid (PFOA) to be compatible with electrospray ionization (ESI)-MS. The high volatility of PFOA provides an intrinsic approach to potentially eliminate the surfactant during ESI, or alternatively through solvent evaporation prior to MS. The ammonium salt of PFOA, ammonium perfluorooctanoate (APFO), is likely favored for proteome experiments; the MS and liquid chromatography (LC)/MS tolerance of APFO has not been established for proteome applications. METHODS Standard proteins and peptides, as well as a yeast proteome mixture, were individually spiked with surfactants (APFO, PFOA, SDS), and subjected to direct infusion ESI-MS, LC/MS/MS and LC/UV. The level of fluorinated surfactant remaining after solvent evaporation under varying conditions (time, pH, salt and protein content) was quantified and compared to the threshold tolerance level of the surfactant in an MS experiment (determined herein). RESULTS Whereas PFOA is found ineffective at assisting protein solubilization, APFO is as effective as SDS for resolubilization of acetone-precipitated yeast proteins (~100% recovery). Unfortunately, the LC and MS threshold tolerance of APFO is only minimally greater than SDS (~2-fold higher concentration to cause 50% suppression). Nonetheless, the benefits of APFO in a proteome experiment are realized following a one-step evaporation protocol for removal of the surfactant in acidified solvent. CONCLUSIONS APFO is considered a favoured alternative to SDS for proteome solubilization. Strictly speaking, APFO is not an 'MS-friendly' surfactant for proteome characterization; the detergent not only suppresses ESI signals at high concentration, but also perturbs reversed phase separation. However, the simplicity of APFO removal ahead of LC/MS justifies its use over the conventional SDS.
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Affiliation(s)
- Douglas B Vieira
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, Canada
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Stanley B, Lucy CA. Micellar electrokinetic chromatography with acid labile surfactant. J Chromatogr A 2012; 1226:55-60. [DOI: 10.1016/j.chroma.2011.09.065] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Revised: 09/23/2011] [Accepted: 09/23/2011] [Indexed: 01/12/2023]
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Reversed Electrode Polarity Stacking Sample Preconcentration Combined with Micellar Electrokinetic Chromatography for the Analysis of Carbamate Insecticide Residues in Fruit Juices. FOOD ANAL METHOD 2011. [DOI: 10.1007/s12161-011-9219-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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19
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Quirino JP. Sweeping of neutral analytes in partial-filling micellar electrokinetic chromatography with electrospray ionization mass spectrometry. Electrophoresis 2011; 32:665-8. [DOI: 10.1002/elps.201000513] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2010] [Revised: 11/15/2010] [Accepted: 11/27/2010] [Indexed: 11/08/2022]
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El Deeb S, Iriban MA, Gust R. MEKC as a powerful growing analytical technique. Electrophoresis 2010; 32:166-83. [PMID: 21171121 DOI: 10.1002/elps.201000398] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2010] [Revised: 09/30/2010] [Accepted: 09/30/2010] [Indexed: 11/11/2022]
Abstract
This review summarizes the principle and the developments in MEKC in terms of separation power, sensitivity, and detection approaches more than 25 years after its appearance. Newly used surfactants are mentioned. Classical and new sample concentration techniques in MEKC are described. The different detection approaches in MEKC with advantages, limitations, and future prospects are also discussed. This review highlights the wider application of MEKC in different analytical fields. Various recent selected applications of this technique in different analytical fields are reported.
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Affiliation(s)
- Sami El Deeb
- Institute of Pharmacy, Freie Universität Berlin, Berlin, Germany
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Somsen GW, Mol R, de Jong GJ. On-line coupling of electrokinetic chromatography and mass spectrometry. J Chromatogr A 2010; 1217:3978-91. [DOI: 10.1016/j.chroma.2010.01.026] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2009] [Revised: 12/23/2009] [Accepted: 01/08/2010] [Indexed: 11/27/2022]
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Ravelo-Pérez LM, Asensio-Ramos M, Hernández-Borges J, Rodríguez-Delgado MA. Recent food safety and food quality applications of CE-MS. Electrophoresis 2009; 30:1624-46. [PMID: 19360778 DOI: 10.1002/elps.200800670] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The first on-line coupling of CE with MS detection more than 20 years ago provided a very powerful technique with a wide variety of applications, among which food analysis is of special interest, especially that dealing with food safety and food quality applications, the major topics of public interest nowadays. With this review article, we would like to show the most recent applications of CE-MS in both fields by recompiling and commenting articles published between January 2004 and October 2008. Although both applications are difficult to separate from each other, we have included in this work two main sections dealing with each specific field. Future trends will also be discussed.
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Affiliation(s)
- Lidia M Ravelo-Pérez
- Departamento de Química Analítica, Nutrición y Bromatología, Universidad de La Laguna, La Laguna, Tenerife, Islas Canarias, Spain
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Silva M. Micellar electrokinetic chromatography: Methodological and instrumental advances focused on practical aspects. Electrophoresis 2009; 30:50-64. [DOI: 10.1002/elps.200800414] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Van Biesen G, Bottaro CS. Linear solvation energy relationships of anionic dimeric surfactants in micellar electrokinetic chromatography. J Chromatogr A 2008; 1202:90-5. [DOI: 10.1016/j.chroma.2008.06.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2008] [Revised: 06/20/2008] [Accepted: 06/24/2008] [Indexed: 10/21/2022]
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25
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Kostal V, Katzenmeyer J, Arriaga EA. Capillary electrophoresis in bioanalysis. Anal Chem 2008; 80:4533-50. [PMID: 18484738 DOI: 10.1021/ac8007384] [Citation(s) in RCA: 108] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Vratislav Kostal
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, USA
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Dabek-Zlotorzynska E, Celo V, Yassine MM. Recent advances in CE and CEC of pollutants. Electrophoresis 2008; 29:310-23. [DOI: 10.1002/elps.200700510] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Song EJ, Babar SME, Oh E, Hasan MN, Hong HM, Yoo YS. CE at the omics level: Towards systems biology – An update. Electrophoresis 2008; 29:129-42. [DOI: 10.1002/elps.200700467] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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