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MODELLING THE SIMULTANEOUS CHIRAL SEPARATION OF A GROUP OF DRUGS BY ELECTROKINETIC CHROMATOGRAPHY USING MIXTURES OF CYCLODEXTRINS. J Chromatogr A 2022; 1681:463444. [DOI: 10.1016/j.chroma.2022.463444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/18/2022] [Accepted: 08/22/2022] [Indexed: 11/20/2022]
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2
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Wang L, Xie W, Jiao W, Zhang C, Li X, Xu Z, Huang XA, Lei H, Shen X. Conformational adaptability determining antibody recognition to distomer: structure analysis of enantioselective antibody against chiral drug gatifloxacin. RSC Adv 2021; 11:39534-39544. [PMID: 35492441 PMCID: PMC9044418 DOI: 10.1039/d1ra07143b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 11/21/2021] [Indexed: 11/21/2022] Open
Abstract
Enantioselective antibodies have great potential to separate and detect chiral compounds. However, cross-reactivity of enantioselective antibodies to the distomer may limit the application. An in-depth understanding of interactions between antibodies and chiral drugs could be helpful to investigate antibody recognition to the distomer. In this study, a monoclonal antibody against chiral quinolone S-(−)-gatifloxacin (S-GAT) was produced and its Fab fragment was prepared by proteolysis. The S-GAT Fab exhibited 10% cross-reactivity against the R-enantiomer compared to that of the S-enantiomer in an indirect competitive enzyme-linked immunosorbent assay (icELISA). The crystal structures of the S-GAT Fab apo form and complex with S-GAT were analyzed, and molecular docking of the R-enantiomer was carried out. The ligand conformation was further studied using molecular dynamics simulations. The results showed that the distomer R-enantiomer could enter the chiral center recognition region of the antibody by adjusting the piperazine ring conformation. Meanwhile, the antibody binding cavity had obvious conformational adaptability during ligand binding. It demonstrated that conformational change of both ligand and antibody was the key reason why antibodies recognize the distomer. Restricting conformational adaptability could improve the enantioselective recognition ability of antibodies. This study provided a new explanation for the cross-reactivity of enantioselective antibodies to the distomer, and could help to modulate antibody enantioselectivity for immunoassay of chiral drugs. The conformational adaptability of both antibody and ligand could determine the antibody enantioselectivity in chiral drug immunoassay.![]()
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Affiliation(s)
- Lanteng Wang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Wei Xie
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510006, China
| | - Wenyang Jiao
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Chijian Zhang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Xiangmei Li
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Zhenlin Xu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Xin-an Huang
- Tropical Medicine Institute & South China Chinese Medicine Collaborative Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Hongtao Lei
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Xing Shen
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
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Lv L, Wang L, Li J, Jiao Y, Gao S, Wang J, Yan H. Enantiomeric separation of seven β-agonists by NACE—Study of chiral selectivity with diacetone-d-mannitol–boric acid complex. J Pharm Biomed Anal 2017; 145:399-405. [DOI: 10.1016/j.jpba.2017.06.044] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 06/13/2017] [Accepted: 06/17/2017] [Indexed: 12/21/2022]
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Kong D, Zhou Z, Zhu H, Mao Y, Guo Z, Zhang W, Ren Z. Selective separation of salbutamol enantiomers with simultaneously synergistic extraction and stripping method. J Memb Sci 2016. [DOI: 10.1016/j.memsci.2015.10.068] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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5
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Přibylka A, Švidrnoch M, Ševčík J, Maier V. Enantiomeric separation of 1,3-dimethylamylamine by capillary electrophoresis with indirect UV detection using a dual-selector system. Electrophoresis 2015; 36:2866-73. [DOI: 10.1002/elps.201500182] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 07/27/2015] [Accepted: 07/29/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Adam Přibylka
- Regional Centre of Advanced Technologies and Materials, Department of Analytical Chemistry, Faculty of Science; Palacký University in Olomouc; Olomouc Czech Republic
| | - Martin Švidrnoch
- Regional Centre of Advanced Technologies and Materials, Department of Analytical Chemistry, Faculty of Science; Palacký University in Olomouc; Olomouc Czech Republic
| | - Juraj Ševčík
- Regional Centre of Advanced Technologies and Materials, Department of Analytical Chemistry, Faculty of Science; Palacký University in Olomouc; Olomouc Czech Republic
| | - Vítězslav Maier
- Regional Centre of Advanced Technologies and Materials, Department of Analytical Chemistry, Faculty of Science; Palacký University in Olomouc; Olomouc Czech Republic
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Zhou T, Zeng J, Liu S, Zhao T, Wu J, Lai W, He M, Xu B, Qu S, Xu L, Tan W. Study on the determination and chiral inversion of R-salbutamol in human plasma and urine by liquid chromatography-tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 1002:218-27. [PMID: 26342164 DOI: 10.1016/j.jchromb.2015.08.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 08/13/2015] [Accepted: 08/14/2015] [Indexed: 11/30/2022]
Abstract
The chiral inversion has been a concerned issue during the research and development of a chiral drug. In this study, a sensitive chiral liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed for determination of salbutamol enantiomers in human plasma and urine. The chiral inversion mechanism of R-salbutamol was fully investigated for the first time by studying the effects of physicochemical factors, including pH, temperature and time. A fitted model to predict the chiral inversion ratio of R-salbutamol was proposed using a Box-Behnken design. All the samples were separated on an Astec Chirobiotic T column and detected by a tandem mass spectrometer in multiple reaction monitoring mode. Lower limit of quantification of 0.100ng/mL was achieved under the optimized conditions. The method was fully validated and successfully applied to the clinical pharmacokinetic study of R-salbutamol in healthy volunteers. Chiral inversion of R-salbutamol to S-salbutamol has been detected in urine samples. The results indicated that pH and temperature were two dominant factors that caused the chiral inversion of R-salbutamol, which should be taken into consideration during the analysis of chiral drugs. The chiral inversion of R-salbutamol determined in this study was confirmed resulted from the gastric acid in stomach rather than caused by the analysis conditions. Moreover, the calculated results of the fitted model matched very well with the enantioselective pharmacokinetic study of R-salbutamol, and the individual difference of the chiral inversion ratio of R-salbutamol was related to the individual gastric environment. On the basis of the results, this study provides important and concrete information not only for the chiral analysis but also for the metabolism research of chiral drugs.
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Affiliation(s)
- Ting Zhou
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, China; Pre-incubator for Innovative Drugs and Medicine, South China University of Technology, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Fermentation and Enzyme Engineering, South China University of Technology, Guangzhou 510006, China
| | - Jing Zeng
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, China; Pre-incubator for Innovative Drugs and Medicine, South China University of Technology, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Fermentation and Enzyme Engineering, South China University of Technology, Guangzhou 510006, China
| | - Shan Liu
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, China; Pre-incubator for Innovative Drugs and Medicine, South China University of Technology, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Fermentation and Enzyme Engineering, South China University of Technology, Guangzhou 510006, China
| | - Ting Zhao
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, China; Pre-incubator for Innovative Drugs and Medicine, South China University of Technology, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Fermentation and Enzyme Engineering, South China University of Technology, Guangzhou 510006, China
| | - Jie Wu
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, China; Pre-incubator for Innovative Drugs and Medicine, South China University of Technology, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Fermentation and Enzyme Engineering, South China University of Technology, Guangzhou 510006, China
| | - Wenshi Lai
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, China; Pre-incubator for Innovative Drugs and Medicine, South China University of Technology, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Fermentation and Enzyme Engineering, South China University of Technology, Guangzhou 510006, China
| | - Mingzhi He
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, China
| | - Beining Xu
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, China
| | - Shanshan Qu
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, China
| | - Ling Xu
- Keypharma Biomedical Inc., Songshan Lake Science & Technology Industry Park, Dongguan 523808, China
| | - Wen Tan
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, China; Pre-incubator for Innovative Drugs and Medicine, South China University of Technology, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Fermentation and Enzyme Engineering, South China University of Technology, Guangzhou 510006, China.
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Enantiomeric separation of tapentadol by capillary electrophoresis—Study of chiral selectivity manipulation by various types of cyclodextrins. J Pharm Biomed Anal 2015; 105:10-16. [DOI: 10.1016/j.jpba.2014.11.027] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Revised: 11/11/2014] [Accepted: 11/14/2014] [Indexed: 11/19/2022]
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8
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Fu Q, Yang F, Chen H, Xia Z. Enhancement of enantioselectivity in chiral capillary electrophoresis using hydroxypropyl-beta-cyclodextrin as chiral selector under molecular crowding conditions induced by dextran or dextrin. Electrophoresis 2014; 35:2938-45. [DOI: 10.1002/elps.201400116] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2014] [Revised: 05/27/2014] [Accepted: 06/19/2014] [Indexed: 01/31/2023]
Affiliation(s)
- Qifeng Fu
- School of Chemistry and Chemical Engineering; Chongqing University; Chongqing P. R. China
| | - Fengqing Yang
- School of Chemistry and Chemical Engineering; Chongqing University; Chongqing P. R. China
| | - Hua Chen
- School of Chemistry and Chemical Engineering; Chongqing University; Chongqing P. R. China
| | - Zhining Xia
- School of Chemistry and Chemical Engineering; Chongqing University; Chongqing P. R. China
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Farhadian N, Sharifi A, Lashgari E. Selective adsorption of metoprolol enantiomers using 2-hydroxypropyl-β-cyclodextrin cross-linked multiwalled carbon nanotube. Biomed Chromatogr 2014; 29:366-72. [DOI: 10.1002/bmc.3285] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2013] [Revised: 05/25/2014] [Accepted: 06/03/2014] [Indexed: 11/11/2022]
Affiliation(s)
- Nafiseh Farhadian
- Chemical Engineering Department, Faculty of Engineering; Ferdowsi University of Mashhad; Mashhad Iran
| | - Arezoo Sharifi
- Chemical Engineering Department, Faculty of Engineering; Ferdowsi University of Mashhad; Mashhad Iran
| | - Elmira Lashgari
- Chemical Engineering Department, Faculty of Engineering; Ferdowsi University of Mashhad; Mashhad Iran
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Lipka E, Landagaray E, Ettaoussi M, Yous S, Vaccher C. Enhanced detection for determination of enantiomeric purity of novel agomelatine analogs by EKC using single and dual cyclodextrin systems. Electrophoresis 2014; 35:2785-92. [DOI: 10.1002/elps.201400106] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 05/26/2014] [Accepted: 05/26/2014] [Indexed: 11/07/2022]
Affiliation(s)
| | | | | | - Saïd Yous
- Univ. Lille Nord de France, UDSL; Lille France
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11
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Liu Y, Shamsi SA. Combined use of chiral ionic liquid surfactants and neutral cyclodextrins: evaluation of ionic liquid head groups for enantioseparation of neutral compounds in capillary electrophoresis. J Chromatogr A 2014; 1360:296-304. [PMID: 25130088 DOI: 10.1016/j.chroma.2014.07.047] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Revised: 07/07/2014] [Accepted: 07/16/2014] [Indexed: 11/15/2022]
Abstract
Cyclodextrins (CDs) are most commonly used chiral selectors in capillary electrophoresis (CE). Although the use of neutral CDs and its derivatives have shown to resolve plethora of charged enantiomers, they cannot resolve neutral enantiomers. The use of ionic liquids (ILs) surfactants forming successful complex with CDs present itself an opportunity to resolve neutral enantiomers. In this work, the effect of IL head groups and their complexation ability with heptakis (2,3,6-tri-O-methyl)-β-cyclodextrin (TM-β-CD) was studied for the separation of neutral enantiomers by CE. First, cationic IL type surfactants with different chiral head groups were synthesized. Physicochemical properties such as critical micelle concentration were determined by surface tension, whereas aggregation and polarity were determined by fluorescence spectroscopy. The complexation ability of ILs with TM-β-CD was characterized in the gas phase by CE-mass spectrometry. The influence of the type of ILs head group and its concentration on chiral resolution, resolution per unit time and selectivity were investigated for four structurally diverse neutral compounds. The binding constants of the neutral analytes to the IL-CD complex were estimated by y-reciprocal method. The hydrophobicity of the side chain of the IL head group displayed significant effect on the binding constants and enantioseparations.
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Affiliation(s)
- Yijin Liu
- Department of Chemistry, Center of Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30303, United States
| | - Shahab A Shamsi
- Department of Chemistry, Center of Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30303, United States.
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12
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Liu YM, Li J, Yang Y, Du JJ. Separation and determination of anesthetics by capillary electrophoresis with mixed micelles of sodium dodecyl sulfate and Tween 20 using electrochemiluminescence detection. LUMINESCENCE 2012; 28:673-8. [DOI: 10.1002/bio.2414] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2012] [Revised: 06/15/2012] [Accepted: 07/09/2012] [Indexed: 11/11/2022]
Affiliation(s)
- Yan-Ming Liu
- College of Chemistry and Chemical Engineering; Xinyang Normal University; Xinyang; 464000; People's Republic of China
| | - Jie Li
- College of Chemistry and Chemical Engineering; Xinyang Normal University; Xinyang; 464000; People's Republic of China
| | - Yang Yang
- College of Chemistry and Chemical Engineering; Xinyang Normal University; Xinyang; 464000; People's Republic of China
| | - Jun-Jun Du
- College of Chemistry and Chemical Engineering; Xinyang Normal University; Xinyang; 464000; People's Republic of China
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13
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Zhou J, Yao H, Shao H, Li Y, Zhang Z. ENANTIOSEPARATION OF β-AGONISTS WITH CARBOXYMETHYL-β-CYCLODEXTRIN BY CE. J LIQ CHROMATOGR R T 2012. [DOI: 10.1080/10826076.2011.593387] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Jie Zhou
- a School of Pharmacy, Zhengzhou University , Zhengzhou , Henan , P. R. China
- b Research Center of Nanotechnology for Drug, Zhengzhou University , Zhengzhou , Henan , P. R. China
- c Henan Key Laboratory for Molecular Medicine , Zhengzhou , Henan , P. R. China
| | - Hanchun Yao
- a School of Pharmacy, Zhengzhou University , Zhengzhou , Henan , P. R. China
| | - Hong Shao
- a School of Pharmacy, Zhengzhou University , Zhengzhou , Henan , P. R. China
- b Research Center of Nanotechnology for Drug, Zhengzhou University , Zhengzhou , Henan , P. R. China
- c Henan Key Laboratory for Molecular Medicine , Zhengzhou , Henan , P. R. China
| | - Yinghui Li
- a School of Pharmacy, Zhengzhou University , Zhengzhou , Henan , P. R. China
| | - Zhenzhong Zhang
- a School of Pharmacy, Zhengzhou University , Zhengzhou , Henan , P. R. China
- b Research Center of Nanotechnology for Drug, Zhengzhou University , Zhengzhou , Henan , P. R. China
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Baniceru M, Manda CV, Popescu SM. Chromatographic analysis of local anesthetics in biological samples. J Pharm Biomed Anal 2011; 54:1-12. [DOI: 10.1016/j.jpba.2010.07.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2010] [Revised: 07/10/2010] [Accepted: 07/13/2010] [Indexed: 10/19/2022]
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15
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Chen J, Du Y, Zhu F, Chen B. Evaluation of the enantioselectivity of glycogen-based dual chiral selector systems towards basic drugs in capillary electrophoresis. J Chromatogr A 2010; 1217:7158-63. [DOI: 10.1016/j.chroma.2010.09.017] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2010] [Revised: 08/11/2010] [Accepted: 09/07/2010] [Indexed: 10/19/2022]
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16
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Wan Ibrahim WA, Warno SA, Aboul‐Enein HY, Hermawan D, Sanagi MM. Simultaneous enantioseparation of cyproconazole, bromuconazole, and diniconazole enantiomers by CD‐modified MEKC. Electrophoresis 2009; 30:1976-82. [DOI: 10.1002/elps.200800499] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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17
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Scriba GKEV. Cyclodextrins in capillary electrophoresis enantioseparations--recent developments and applications. J Sep Sci 2008; 31:1991-2011. [PMID: 18491357 DOI: 10.1002/jssc.200800095] [Citation(s) in RCA: 140] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Capillary EKC has been established as a versatile and robust CE method for the separation of enantiomers. Within the chiral selectors added to the BGE CDs continue as the most widely used selectors due to their structural variety and commercial availability. This is reflected in the large number of practical applications of CDs to analytical enantioseparations that have been reported between January 2006 and January 2008, the period of time covered by this review. Most of these applications cover aspects of life sciences such as drug analysis, bioanalysis, environmental analysis, or food analysis. Moreover, new CD derivatives have been developed in an attempt to achieve altered enantioselectivities and to further broaden the application range. Finally, efforts will be summarized that aim at an understanding of the molecular level of the chiral recognition between CDs and the analytes.
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Affiliation(s)
- Gerhard K E V Scriba
- Department of Pharmaceutical Chemistry, School of Pharmacy, Friedrich Schiller University, Philosophenweg 14, D-07743 Jena, Germany.
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18
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Chiral separation by capillary electromigration techniques. J Chromatogr A 2008; 1204:140-56. [DOI: 10.1016/j.chroma.2008.07.071] [Citation(s) in RCA: 208] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2008] [Revised: 06/27/2008] [Accepted: 07/08/2008] [Indexed: 11/19/2022]
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19
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Wang Z, Ouyang J, Baeyens WR. Recent developments of enantioseparation techniques for adrenergic drugs using liquid chromatography and capillary electrophoresis: A review. J Chromatogr B Analyt Technol Biomed Life Sci 2008; 862:1-14. [DOI: 10.1016/j.jchromb.2007.11.034] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2007] [Revised: 10/20/2007] [Accepted: 11/23/2007] [Indexed: 10/22/2022]
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20
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Method development and validation for the simultaneous determination of cinnarizine and co-formulated drugs in pharmaceutical preparations by capillary electrophoresis. J Pharm Biomed Anal 2008; 46:491-7. [DOI: 10.1016/j.jpba.2007.11.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2007] [Revised: 11/12/2007] [Accepted: 11/12/2007] [Indexed: 11/18/2022]
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21
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Cserháti T. New applications of cyclodextrins in electrically driven chromatographic systems: a review. Biomed Chromatogr 2008; 22:563-71. [DOI: 10.1002/bmc.979] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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22
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Lorin M, Delépée R, Morin P, Ribet JP. Quantification of very low enantiomeric impurity of efaroxan using a dual cyclodextrin system by capillary electrophoresis. Anal Chim Acta 2007; 592:139-45. [PMID: 17512818 DOI: 10.1016/j.aca.2007.04.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2007] [Revised: 04/02/2007] [Accepted: 04/11/2007] [Indexed: 10/23/2022]
Abstract
A rapid method for the enantiomeric purity determination of efaroxan has been developed by capillary electrophoresis (CE) using a dual cyclodextrin (CD) system. The influence of the nature and the concentration of CDs on separation parameters has been studied. High resolution (R(s)=7) and peak efficiency (104,000-121,000 theoretical plates) values were obtained for efaroxan enantiomers by adding two cyclodextrins, one neutral (7.5 mM DM-beta-CD) and the other negatively charged (3 mM CM-beta-CD) to the running buffer composed of 100 mM phosphoric acid-triethanolamine (pH 3). These resolution and peak efficiencies values allowed the quantitation of the (S)-enantiomer of efaroxan at very low enantiomeric excess even if the minor component migrates after the major one. This method was fully validated for the enantiomeric impurity determination of the (S)-form of efaroxan at the 0.05% level. Calibration curve, expressed by the peak areas ratio versus the enantiomeric purity was linear over the 0.05-1% enantiomeric impurity range (r2=0.9996). Limits of detection (LOD) and quantification (LOQ), expressed in term of (S)-enantiomer impurity were 0.02% and 0.05%, respectively. The accuracy of the method at 0.12%, 0.50% and 0.80% enantiomeric impurity levels for the (S)-form were determined. Recoveries were in 94-102% range for each quality control sample and were determined with good precision (intra-day R.S.D.=3.54%, inter-day R.S.D.=5.33%).
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Affiliation(s)
- Marie Lorin
- Institut de Chimie Organique et Analytique, CNRS FR 2708, UMR 6005, Université d'Orléans, BP 6759, Orléans 45067 Cedex 2, France
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23
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Long PH, Trung TQ, Oh JW, Kim KH. Chiral purity test of bevantolol by capillaryelectrophoresis and high performance liquid chromatography. Arch Pharm Res 2006; 29:808-13. [PMID: 17024856 DOI: 10.1007/bf02974083] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Two methods for the chiral purity determination of bevantolol were developed, namely capillary electrophoresis (CE) using carboxymethyl-beta-cyclodextrin (CM-beta-CD) as a chiral selector and high-performance liquid chromatography (HPLC) using a chiral stationary phase. In the HPLC method, the separation of bevantolol enantiomers was performed on a Chiralpak AD-H column by isocratic elution with n-hexane-ethanol-diethylamine (10:90:0.1, v/v/v) as mobile phase. In the CE method, bevantolol enantiomers were separated on an uncoated fused silica capillary with 50 mM amonium phosphate dibasic adjusted to a pH 6.5 with phosphoric acid containing 15 mM CM-beta-CD as running buffer. Validation data such as linearity, recovery, detection limit, and precision of the two methods are presented. The detection limits of S-(-)-bevantolol were 0.1% and 0.05% for CE and HPLC method, respectively and R-(+)-bevantolol were 0.15% and 0.05% for CE and HPLC method, respectively. There was generally good agreement between the HPLC and CE results.
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Affiliation(s)
- Pham Hai Long
- College of Pharmacy, Kangwon National University, Chunchon 200-701, Korea
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