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Celá A, Glatz Z. Homocyclic
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‐dicarboxaldehydes: Derivatization reagents for sensitive analysis of amino acids and related compounds by capillary and microchip electrophoresis. Electrophoresis 2020; 41:1851-1869. [DOI: 10.1002/elps.202000041] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 05/27/2020] [Accepted: 06/07/2020] [Indexed: 01/01/2023]
Affiliation(s)
- Andrea Celá
- Department of Biochemistry, Faculty of Science Masaryk University Brno Czech Republic
| | - Zdeněk Glatz
- Department of Biochemistry, Faculty of Science Masaryk University Brno Czech Republic
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2
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Isocratic micellar liquid chromatography using mixed anionic and non-ionic surfactants as mobile phase additives for separation of 17 free amino acids. CHEMICAL PAPERS 2019. [DOI: 10.1007/s11696-019-00791-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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3
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Denoroy L, Parrot S. Analysis of Amino Acids and Related Compounds by Capillary Electrophoresis. SEPARATION AND PURIFICATION REVIEWS 2016. [DOI: 10.1080/15422119.2016.1212378] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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4
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Chen YC, Chang PL. Baseline separation of amino acid biomarkers of hepatocellular carcinoma by polyvinylpyrrolidone-filled capillary electrophoresis with light-emitting diode-induced fluorescence in the presence of mixed micelles. Analyst 2015; 140:847-53. [DOI: 10.1039/c4an01550a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Separation of amino acid biomarkers could be performed by polyvinylpyrrolidone-filled capillary electrophoresis in the presence of mixed micelles.
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Affiliation(s)
- Yen-Chu Chen
- Department of Chemistry
- Tunghai University
- Taichung 40704
- Taiwan
| | - Po-Ling Chang
- Department of Chemistry
- Tunghai University
- Taichung 40704
- Taiwan
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Dziomba S, Bekasiewicz A, Prahl A, Bączek T, Kowalski P. Improvement of derivatized amino acid detection sensitivity in micellar electrokinetic capillary chromatography by means of acid-induced pH-mediated stacking technique. Anal Bioanal Chem 2014; 406:6713-21. [PMID: 25146356 PMCID: PMC4182592 DOI: 10.1007/s00216-014-8104-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Revised: 08/08/2014] [Accepted: 08/11/2014] [Indexed: 12/05/2022]
Abstract
Derivatization is a frequently used sample preparation procedure applicable to the enhancement of analyte detection sensitivity. Amino acids mostly require derivatization prior to electrophoretic or chromatographic analysis, especially if spectrophotometric detection is used. This study presents an on-line preconcentration technique for derivatized amino acids. The sensitivity of the method was improved by the utilization of the proposed acid-induced pH-mediated stacking mechanism. The method is demonstrated by preconcentration of amino acids labeled with 2,4-dinitrofluorobenzene. Use of optimized conditions for a large sample volume injection (40 s, 13.8 kPa) followed by electrokinetic injection of 0.1 M HCl (20 s, 10 kV) gave a 20- to 30-fold enhancement of sensitivity. The significance of the sweeping mechanism and pseudo-isotachophoresis for the on-line sample focusing and the influence of parameters on the preconcentration process were discussed. The applicability of the elaborated method was demonstrated using human urine samples.
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Affiliation(s)
- Szymon Dziomba
- Department of Pharmaceutical Chemistry, Medical University of Gdańsk, 107 Hallera Street, 80-416, Gdańsk, Poland
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Wu CW, Lee JY, Hu CC, Chiu TC. On-line Concentration and Separation of Parabens by Micellar Electrokinetic Chromatography Using Polymer Solutions. J CHIN CHEM SOC-TAIP 2014. [DOI: 10.1002/jccs.201300124] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Online dynamic pH junction–sweeping for the determination of benzoic and sorbic acids in food products by capillary electrophoresis. Anal Bioanal Chem 2013; 406:635-41. [DOI: 10.1007/s00216-013-7481-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 10/29/2013] [Accepted: 11/01/2013] [Indexed: 12/19/2022]
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8
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Lin EP, Lin KC, Chang CW, Hsieh MM. On-line sample preconcentration by sweeping and poly(ethylene oxide)-mediated stacking for simultaneous analysis of nine pairs of amino acid enantiomers in capillary electrophoresis. Talanta 2013; 114:297-303. [PMID: 23953474 DOI: 10.1016/j.talanta.2013.05.039] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Revised: 05/15/2013] [Accepted: 05/16/2013] [Indexed: 12/31/2022]
Abstract
This study proposes a sensitive method for the simultaneous separation and concentration of 9 pairs of amino acid enantiomers by combining poly(ethylene oxide) (PEO)-based stacking, β-cyclodextrin (β-CD)-mediated micellar electrokinetic chromatography (MEKC), and 9-fluoroenylmethyl chloroformate (FMOC) derivatization. The 9 pairs of FMOC-derivatized amino acid enantiomers were baseline separated using a discontinuous system, and the buffer vials contained a solution of 150 mM Tris-borate (TB), 12.5% (v/v) isopropanol (IPA), 0.5% (w/v) PEO, 35 mM sodium taurodeoxycholate (STDC), and 35 mM β-CD, and the capillary was filled with a solution of 1.5 M TB, 12.5% (v/v) IPA, 35 mM STDC, and 35 mM β-CD. Based on the difference in viscosity between the sample zone and PEO solution and because of the STDC sweeping, the discontinuous system effectively stacked 670 nL of the 9 pairs of FMOC-derivatized amino acid enantiomers without losing chiral resolution. Consequently, the limits of detection for the 9 pairs of FMOC-derivatized amino acid enantiomers were reduced to 40-60 nM. This method was successfully used to determine d-Tryptophan (Trp), l-Trp, d-Phenylalanine (Phe), l-Phe, d-Glutamic acid (Glu), and l-Glu in various types of beers.
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Affiliation(s)
- En-Ping Lin
- Department of Chemistry, National Kaohsiung Normal University, Taiwan
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9
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Recent advances in on-line concentration and separation of amino acids using capillary electrophoresis. Anal Bioanal Chem 2013; 405:7919-30. [DOI: 10.1007/s00216-013-6906-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 02/23/2013] [Accepted: 03/08/2013] [Indexed: 11/25/2022]
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10
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Hsieh MM, Chang PL. Separation of amino acids by capillary electrophoresis with light-emitting diode-induced fluorescence in the presence of electroosmotic flow. Methods Mol Biol 2013; 984:121-129. [PMID: 23386340 DOI: 10.1007/978-1-62703-296-4_9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In this chapter, we describe a method to identify amino acids (AA) by capillary electrophoresis in conjunction with light-emitting diode-induced fluorescence (LEDIF). First, amino acids labeled with naphthalene-2,3-dicarboxaldehyde (NDA) in the presence of cyanide are converted to highly fluorescent cyanobenz[f]isoindole (CBI) derivatives. Next, they are separated by gel electrophoresis in the presence of EOF. In the process, the CBI products were excited by a violet LED to produce green fluorescence. In addition to the optical setup of light-emitting diode-induced fluorescence, the preparation of poly(ethylene) oxide for amino acid separation is also described in this chapter.
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Affiliation(s)
- Ming-Mu Hsieh
- Department of Chemistry, National Kaohsiung Normal University, Kaohsiung, Taiwan
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11
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Enhancing Fluorescence LC Analysis of Biogenic Amines in Fish Tissues by Precolumn Derivatization with Naphthalene-2,3-dicarboxaldehyde. FOOD ANAL METHOD 2012. [DOI: 10.1007/s12161-012-9409-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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12
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Hsieh MM, Lin EP, Huang SW. On-line concentration and separation of cationic and anionic neurochemicals by capillary electrophoresis with UV absorption detection. Talanta 2012; 88:638-45. [DOI: 10.1016/j.talanta.2011.11.050] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2011] [Revised: 11/16/2011] [Accepted: 11/17/2011] [Indexed: 11/25/2022]
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13
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Study of the naphthalene-2,3-dicarboxaldehyde pre-column derivatization of biogenic mono- and diamines in mixture and fluorescence−HPLC determination. Anal Bioanal Chem 2011; 403:1039-48. [DOI: 10.1007/s00216-011-5543-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2011] [Revised: 10/23/2011] [Accepted: 10/25/2011] [Indexed: 10/15/2022]
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14
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Zhang N, Guo XF, Wang H, Zhang HS. Determination of amino acids and catecholamines derivatized with 3-(4-chlorobenzoyl)-2-quinolinecarboxaldehyde in PC12 and HEK293 cells by capillary electrophoresis with laser-induced fluorescence detection. Anal Bioanal Chem 2011; 401:297-304. [DOI: 10.1007/s00216-011-5056-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Revised: 04/19/2011] [Accepted: 04/22/2011] [Indexed: 11/29/2022]
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15
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Chang PL, Chiu TC, Wang TE, Hu KC, Tsai YH, Hu CC, Bair MJ, Chang HT. Quantitation of branched-chain amino acids in ascites by capillary electrophoresis with light-emitting diode-induced fluorescence detection. Electrophoresis 2011; 32:1080-3. [DOI: 10.1002/elps.201000445] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2010] [Revised: 11/20/2010] [Accepted: 11/22/2010] [Indexed: 02/06/2023]
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Silva M. Micellar electrokinetic chromatography: A practical overview of current methodological and instrumental advances. Electrophoresis 2010; 32:149-65. [DOI: 10.1002/elps.201000344] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2010] [Revised: 07/27/2010] [Accepted: 07/27/2010] [Indexed: 12/22/2022]
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Affiliation(s)
- Zak K. Shihabi
- a Department of Pathology , Wake Forest University School Medicine , Winston-Salem, North Carolina, USA
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Anouti S, Vandenabeele-Trambouze O, Cottet H. Heart-cutting 2D-CE with on-line preconcentration for the chiral analysis of native amino acids. Electrophoresis 2010; 31:1029-35. [DOI: 10.1002/elps.200900639] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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19
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Kao YY, Liu KT, Huang MF, Chiu TC, Chang HT. Analysis of amino acids and biogenic amines in breast cancer cells by capillary electrophoresis using polymer solutions containing sodium dodecyl sulfate. J Chromatogr A 2010; 1217:582-7. [DOI: 10.1016/j.chroma.2009.11.069] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2009] [Revised: 11/20/2009] [Accepted: 11/23/2009] [Indexed: 11/26/2022]
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20
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Separation of amino acids and amines by capillary electrophoresis using poly(ethylene oxide) solution containing cetyltrimethylammonium bromide. J Chromatogr A 2009; 1216:7576-81. [DOI: 10.1016/j.chroma.2009.02.054] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2008] [Revised: 02/13/2009] [Accepted: 02/16/2009] [Indexed: 11/21/2022]
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Abstract
Sample stacking techniques remain an important tool for enhancement of the selectivity and sensitivity of analyses in contemporary CZE. This contribution reviews new knowledge on this topic published since 2006. It is organized according to the operational principles used, which include concentration adjustment, application of a pH step, MEKC and sweeping, and transient ITP. Techniques combining several of these principles and comparative studies are also included.
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Affiliation(s)
- Zdena Malá
- Institute of Analytical Chemistry of the ASCR, Brno, Czech Republic
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22
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Li D, Wang Z, Wang L, Qu C, Zhang H. Separation and Determination of Amino Acids by CE Using 1-Butyl-3-methylimidazolium-Based Ionic Liquid as Background Electrolyte. Chromatographia 2009. [DOI: 10.1365/s10337-009-1247-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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23
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Tseng WL, Hsu CY, Wu TH, Huang SW, Hsieh MM. Highly sensitive detection of chiral amino acids by CE based on on-line stacking techniques. Electrophoresis 2009; 30:2558-64. [DOI: 10.1002/elps.200800765] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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24
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Wu SF, Chiu TC, Ho WL, Chang HT. Combining capillary electrophoresis with laser-induced fluorescence detection for the analysis ofEscherichia colilysates. Electrophoresis 2009; 30:2397-402. [DOI: 10.1002/elps.200800694] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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25
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Xiao D, Yan L, Yuan H, Zhao S, Yang X, Choi MMF. CE with LED-based detection: An update. Electrophoresis 2009; 30:189-202. [DOI: 10.1002/elps.200800415] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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26
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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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27
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Simpson SL, Quirino JP, Terabe S. On-line sample preconcentration in capillary electrophoresis. J Chromatogr A 2008; 1184:504-41. [DOI: 10.1016/j.chroma.2007.11.001] [Citation(s) in RCA: 269] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2007] [Revised: 10/30/2007] [Accepted: 11/01/2007] [Indexed: 02/06/2023]
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28
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Iadarola P, Ferrari F, Fumagalli M, Viglio S. Determination of amino acids by micellar EKC: Recent advances in method development and novel applications to different matrices. Electrophoresis 2008; 29:224-36. [DOI: 10.1002/elps.200700662] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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29
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Chiu TC, Tu WC, Chang HT. Stacking and separation of protein derivatives of naphthalene-2,3-dicarboxaldehyde by CE with light-emitting diode induced fluorescence detection. Electrophoresis 2008; 29:433-40. [DOI: 10.1002/elps.200700315] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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