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Manmana Y, Liu C, Koino H, Sueyoshi K, Kitagawa F, Kubo T, Otsuka K. Development of transient trapping micellar electrokinetic chromatography coupled with mass spectrometry for steroids analysis. Chirality 2022; 34:1328-1337. [PMID: 35754139 DOI: 10.1002/chir.23489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 04/06/2022] [Accepted: 05/23/2022] [Indexed: 11/05/2022]
Abstract
An on-line sample preconcentration technique based on transient trapping (tr-trapping) in micellar electrokinetic chromatography (MEKC) was applied for steroid detection with UV (tr-trapping-UV) and electrospray ionization mass spectrometry detection (tr-trapping-ESI-MS). ESI-MS was used to improve the sensitivity in MEKC. The MEKC separation was carried out using volatile ammonium formate as a background solution to facilitate the coupling with ESI-MS. The partial introduction of a sodium dodecyl sulfate (SDS) micellar solution before the introduction of a sample solution to the capillary provided the effective preconcentration of analytes. At the same time, the SDS micelle would not enter the ESI-MS system, so its interference in ESI-MS detection was suppressed under the optimal condition, then five steroids can be separated by the developed method. In tr-trapping-ESI-MS, an acidic condition of pH 3.5 was employed to suppress the electroosmotic flow, which can avoid micellar solution migrating to the MS instrument. The developed method showed that the micellar solution requires a twofold slower time than the sample to migrate along the column, which can prohibit the cause of the problem with the MS instrument and interference signal of SDS in the steroid's detection. The tr-trapping-ESI-MS protocol showed up to 540-fold enhancements of the peak intensity and 50-fold improvement of the limit of detection compared with capillary zone electrophoresis using androsterone as a model sample.
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Affiliation(s)
- Yanawut Manmana
- Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - Chenchen Liu
- Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - Hiroshi Koino
- Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - Kenji Sueyoshi
- Graduate School of Engineering, Osaka Prefecture University, Osaka, Japan
| | - Fumihiko Kitagawa
- Graduate School of Science and Technology, Hirosaki University, Aomori, Japan
| | - Takuya Kubo
- Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - Koji Otsuka
- Graduate School of Engineering, Kyoto University, Kyoto, Japan
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Hyslop JS, McGettrick JR, Hall LM, Chuk H, Palmer CP. Effects of structure on the performance of latex nanoparticles as a pseudostationary phase in electrokinetic chromatography. Anal Chim Acta 2018; 1000:293-302. [DOI: 10.1016/j.aca.2017.11.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 10/30/2017] [Accepted: 11/06/2017] [Indexed: 01/06/2023]
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3
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Sirén H, El Fellah S. Androgens, oestrogens, and progesterone concentrations in wastewater purification processes measured with capillary electrophoresis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:16765-16785. [PMID: 28567679 DOI: 10.1007/s11356-017-9060-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 04/18/2017] [Indexed: 06/07/2023]
Abstract
A novel analytical-scale concept to improve reliability of detection and analysis of natural and processed wastewater samples from a purification plant was developed. A sequential sample clean-up system of polymer-based octadecyl and silane-based quaternary amine sorbents were used for concentrating human based steroid hormones and their metabolites and detecting them by UV absorption with capillary electrophoresis (CE). The water samples were collected from influent and effluent processes of the water purification plant in Helsinki, Finland.The CE methods were partial-filling micellar electrokinetic chromatography and capillary zone electrophoresis. The analysis times and method concentration levels were optimized with eight steroids at the range of 0.5-10 mg/L. Since in CE the detectable quantities were higher than the existing amounts in the process waters, the real samples needed matrix removal combined with steroid enrichment. After 20,000-fold concentration testosterone-glucoside, androstenedione, progesterone, and estradiol-glucoside could be determined in the process water samples. The amounts of individual steroids in influent and effluent waters were 0-429 and 0-207 ng/L, respectively. Correspondently, their total amounts were 735 and 212 ng/L with excellent in day and inter-day repeatability. The RSD values were less than 1, 9.7, and 19% in repeated analyses, calculated from 60 analyses during 24 h, and from 130 analyses during 15 months, respectively. The steroid removal in purification process was 65% on average. The solid particles separated in three steps during the water clean-up concept contained 9.8-45 ng/g steroids in combined dry precipitates.
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Affiliation(s)
- Heli Sirén
- Department of Chemistry, Laboratory of Analytical Chemistry, University of Helsinki, A.I. Virtasen aukio 1, PO Box 55, FI-00014, Helsinki, Finland.
| | - Samira El Fellah
- Department of Chemistry, Laboratory of Analytical Chemistry, University of Helsinki, A.I. Virtasen aukio 1, PO Box 55, FI-00014, Helsinki, Finland
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El Deeb S, Dawwas HA, Gust R. Recent methodological and instrumental development in MEKC. Electrophoresis 2013; 34:1295-303. [PMID: 23417897 DOI: 10.1002/elps.201200574] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2012] [Revised: 01/04/2013] [Accepted: 01/05/2013] [Indexed: 11/08/2022]
Abstract
The review gives an update about the methodological and instrumental developments in micellar electrokinetic capillary chromatography as a type of CE analytical technique. Here, the last two years development of the technique are particularly presented. Recent approaches to improve sensitivity are discussed. Newly introduced concentration techniques and experimental methods for verification of the different mechanisms and processes of micellar electrokinetic chromatography analysis are highlighted. A theoretical model to explain changes in separation and electrophoretic mobility order of fully charged analytes are demonstrated. Modern approaches for improving compatibility of micellar electrokinetic capillary chromatography to mass spectrometry are also reported.
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Affiliation(s)
- Sami El Deeb
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innsbruck, Austria
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Kuehnbaum NL, Britz-McKibbin P. New Advances in Separation Science for Metabolomics: Resolving Chemical Diversity in a Post-Genomic Era. Chem Rev 2013; 113:2437-68. [DOI: 10.1021/cr300484s] [Citation(s) in RCA: 201] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Naomi L. Kuehnbaum
- Department of Chemistry
and Chemical Biology, McMaster University, Hamilton, Canada
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Cheng C, Tsai HR. Application of simple on-line sweeping sample concentration technique coupled micellar electrokinetic chromatography for simultaneous analysis of estrogen and androgen epimer. J Pharm Biomed Anal 2011; 56:728-35. [DOI: 10.1016/j.jpba.2011.07.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2011] [Revised: 07/14/2011] [Accepted: 07/21/2011] [Indexed: 02/05/2023]
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Abstract
The issue of doping control in sport involves the development of reliable analytical procedures and efficient strategies to process a large number of samples in a short period of time. Reversed-phase LC techniques with aqueous-organic mobile phases and MS or diode-array detection yield satisfactory results for the identification of prohibited substances in sport. However, time-consuming sample pretreatment steps are required, which reduces sample throughput. Micellar LC (MLC) that uses hybrid mobile phases of surfactant above its critical micellar concentration and organic solvent has been revealed as an interesting alternative. The surfactant sodium dodecyl sulfate solubilizes the protein components of urine, serum and plasma, which permits their direct injection into the chromatographic system. Only dilution and filtering of the samples may be required. Most MLC analyses are performed in isocratic mode, with short retention times and good selectivity. The sensitivity of MLC allows the detection of a variety of doping substances at least 24-48 h after being administered.
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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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Britz-McKibbin P. Capillary electrophoresis-electrospray ionization-mass spectrometry (CE-ESI-MS)-based metabolomics. Methods Mol Biol 2011; 708:229-246. [PMID: 21207294 DOI: 10.1007/978-1-61737-985-7_14] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Metabolomics is a rapidly emerging field of functional genomics research whose aim is the comprehensive analysis of low molecular weight metabolites in a biological sample. Capillary electrophoresis-electrospray ionization-mass spectrometry (CE-ESI-MS) represents a promising hyphenated microseparation platform in metabolomics, since a majority of primary metabolites are intrinsically polar. CE-ESI-MS offers a convenient format for the separation of complex mixtures of cationic, anionic, and/or zwitterionic metabolites, as well as their isobaric/isomeric ions without complicated sample handling. Moreover, online sample preconcentration with desalting is readily integrated during separation prior to ionization, where the migration behavior and ionization response of metabolites can be predicted based on their fundamental physicochemical properties. Herein, we describe recent developments in CE-ESI-MS with emphasis on practical protocols necessary for realizing reliable analyses as applied to targeted metabolite profiling and untargeted metabolomic studies in various biological samples.
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Affiliation(s)
- Philip Britz-McKibbin
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, ON, Canada.
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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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11
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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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12
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Xu L, Qiu S, Sun CJ, Deng QP, Chen HX, Zhou YL, Zhang XX. Determination of epitestosterone in human urine by off-line immunoaffinity solid-phase extraction coupled with high performance liquid chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2010; 878:1443-8. [DOI: 10.1016/j.jchromb.2010.03.031] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2010] [Revised: 03/12/2010] [Accepted: 03/15/2010] [Indexed: 11/29/2022]
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13
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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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14
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Quirino JP, Haddad PR. Neutral analyte focusing by micelle collapse in partial-filling MEKC with UV and ESI-MS detection. Electrophoresis 2009; 30:1670-4. [DOI: 10.1002/elps.200800658] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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15
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Breadmore MC, Thabano JRE, Dawod M, Kazarian AA, Quirino JP, Guijt RM. Recent advances in enhancing the sensitivity of electrophoresis and electrochromatography in capillaries and microchips (2006-2008). Electrophoresis 2009; 30:230-48. [DOI: 10.1002/elps.200800435] [Citation(s) in RCA: 118] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Sirén H, Seppänen-Laakso T, Orešič M. Capillary electrophoresis with UV detection and mass spectrometry in method development for profiling metabolites of steroid hormone metabolism. J Chromatogr B Analyt Technol Biomed Life Sci 2008; 871:375-82. [DOI: 10.1016/j.jchromb.2008.06.016] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2008] [Revised: 06/02/2008] [Accepted: 06/06/2008] [Indexed: 11/30/2022]
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