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Ibrahim AE, El Gohary NA, Aboushady D, Samir L, Karim SEA, Herz M, Salman BI, Al-Harrasi A, Hanafi R, El Deeb S. Recent advances in chiral selectors immobilization and chiral mobile phase additives in liquid chromatographic enantio-separations: A review. J Chromatogr A 2023; 1706:464214. [PMID: 37506464 DOI: 10.1016/j.chroma.2023.464214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 07/10/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023]
Abstract
For decades now, the separation of chiral enantiomers of drugs has been gaining the interest and attention of researchers. In 1991, the first guidelines for development of chiral drugs were firstly released by the US-FDA. Since then, the development in chromatographic enantioseparation tools has been fast and variable, aiming at creating a suitable environment where the physically and chemically identical enantiomers can be separated. Among those tools, the immobilization of chiral selectors (CS) on different stationary phases and the chiral mobile phase additives (CMPA) which have been progressed and studied extensively. This review article highlights the major advances in immobilization of CS together with their different recognition mechanisms as well as CMPA as a cheaper and successful alternative for chiral stationary phases. Moreover, the role of molecular modeling tool as a pre-step in the choice of CS for evaluating possible interactions with different ligands has been pointed up. Illustrations of reported methods and updates for immobilized CS and CMPA have been included.
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Affiliation(s)
- Adel Ehab Ibrahim
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Port-Said University, Port-Said 42511, Egypt; Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Sultanate of Oman
| | - Nesrine Abdelrehim El Gohary
- Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Dina Aboushady
- Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Liza Samir
- Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Shereen Ekram Abdel Karim
- Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Magy Herz
- Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Baher I Salman
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Sultanate of Oman
| | - Rasha Hanafi
- Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Sami El Deeb
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Braunschweig 38092, Germany; Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, 14195 Berlin, Germany.
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2
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Al-Sulaimi S, Kushwah R, Abdullah Alsibani M, El Jery A, Aldrdery M, Ashraf GA. Emerging Developments in Separation Techniques and Analysis of Chiral Pharmaceuticals. Molecules 2023; 28:6175. [PMID: 37687004 PMCID: PMC10489017 DOI: 10.3390/molecules28176175] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/05/2023] [Accepted: 08/14/2023] [Indexed: 09/10/2023] Open
Abstract
Chiral separation, the process of isolating enantiomers from a racemic mixture, holds paramount importance in diverse scientific disciplines. Using chiral separation methods like chromatography and electrophoresis, enantiomers can be isolated and characterized. This study emphasizes the significance of chiral separation in drug development, quality control, environmental analysis, and chemical synthesis, facilitating improved therapeutic outcomes, regulatory compliance, and enhanced industrial processes. Capillary electrophoresis (CE) has emerged as a powerful technique for the analysis of chiral drugs. This review also highlights the significance of CE in chiral drug analysis, emphasizing its high separation efficiency, rapid analysis times, and compatibility with other detection techniques. High-performance liquid chromatography (HPLC) has become a vital technique for chiral drugs analysis. Through the utilization of a chiral stationary phase, HPLC separates enantiomers based on their differential interactions, allowing for the quantification of individual enantiomeric concentrations. This study also emphasizes the significance of HPLC in chiral drug analysis, highlighting its excellent resolution, sensitivity, and applicability. The resolution and enantiomeric analysis of nonsteroidal anti-inflammatory drugs (NSAIDs) hold great importance due to their chiral nature and potential variations in pharmacological effects. Several studies have emphasized the significance of resolving and analyzing the enantiomers of NSAIDs. Enantiomeric analysis provides critical insights into the pharmacokinetics, pharmacodynamics, and potential interactions of NSAIDs, aiding in drug design, optimization, and personalized medicine for improved therapeutic outcomes and patient safety. Microfluidics systems have revolutionized chiral separation, offering miniaturization, precise fluid control, and high throughput. Integration of microscale channels and techniques provides a promising platform for on-chip chiral analysis in pharmaceuticals and analytical chemistry. Their applications in techniques such as high-performance liquid chromatography (HPLC) and capillary electrochromatography (CEC) offer improved resolution and faster analysis times, making them valuable tools for enantiomeric analysis in pharmaceutical, environmental, and biomedical research.
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Affiliation(s)
- Sulaiman Al-Sulaimi
- Department of Biological Science and Chemistry, University of Nizwa, Nizwa 611, Oman; (S.A.-S.); (R.K.); (M.A.A.)
| | - Reveka Kushwah
- Department of Biological Science and Chemistry, University of Nizwa, Nizwa 611, Oman; (S.A.-S.); (R.K.); (M.A.A.)
| | - Mohammed Abdullah Alsibani
- Department of Biological Science and Chemistry, University of Nizwa, Nizwa 611, Oman; (S.A.-S.); (R.K.); (M.A.A.)
| | - Atef El Jery
- Department of Chemical Engineering, College of Engineering, King Khalid University, Abha 61411, Saudi Arabia
| | - Moutaz Aldrdery
- Department of Chemical Engineering, College of Engineering, King Khalid University, Abha 61411, Saudi Arabia
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3
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Kaya C, Birgül K, Bülbül B. Fundamentals of chirality, resolution, and enantiopure molecule synthesis methods. Chirality 2023; 35:4-28. [PMID: 36366874 DOI: 10.1002/chir.23512] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/23/2022] [Accepted: 10/11/2022] [Indexed: 11/13/2022]
Abstract
The chirality of molecules is a concept that explains the interactions in nature. We may observe the same formula but different organizations revolving around the chiral center. Since Pasteur's meticulous observation of sodium ammonium tartrate crystals' structure, scientists have discovered many features of chiral molecules. The number of newly approved single enantiomeric drugs increases every year and takes place in the market. Thus, separation or resolution methods of racemic mixtures are of continued importance in the efficacy of drugs, installation of affordable production processes, and convenient synthetic chemistry practice. This article presents the asymmetric synthesis approaches and the classification of direct resolution methods of chiral molecules.
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Affiliation(s)
- Cem Kaya
- Department of Pharmacy, Haydarpasa Numune Training and Research Hospital, İstanbul, Turkey.,Department of Pharmaceutical Chemistry, School of Pharmacy, Altınbaş University, İstanbul, Turkey
| | - Kaan Birgül
- Department of Pharmaceutical Chemistry, School of Pharmacy, Bahçeşehir University, İstanbul, Turkey
| | - Bahadır Bülbül
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Düzce University, Düzce, Turkey
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OHTAWA T, TSUNODA M. Enantiomeric Separation of 2-Hydroxyglutarate Using Chiral Mobile Phase Additives. CHROMATOGRAPHY 2022. [DOI: 10.15583/jpchrom.2021.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Takuma OHTAWA
- Graduate School of Pharmaceutical Sciences, University of Tokyo
| | - Makoto TSUNODA
- Graduate School of Pharmaceutical Sciences, University of Tokyo
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5
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Obaid A, Mohd Jamil AK, Saharin SM, Mohamad S. L-cysteine capped silver nanoparticles as chiral recognition sensor for ketoprofen enantiomers. Chirality 2021; 33:810-823. [PMID: 34486177 DOI: 10.1002/chir.23354] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 07/15/2021] [Accepted: 08/09/2021] [Indexed: 11/06/2022]
Abstract
A simple, inexpensive but effective approach for visual chiral recognition of ketoprofen enantiomers was developed using L-cysteine capped silver nanoparticles (L-Cys-AgNPs) as a colorimetric sensor. Upon the addition of R-ketoprofen to L-Cys-AgNPs, rapid aggregation occurred, and the solution changed color from yellow to green. However, the presence of S-ketoprofen did not induce any color change. The results were characterized using UV-Vis, FESEM, FT-IR, SERS, and zeta potential measurements. The chiral assay described in this work is easily distinguished with the naked eyes or using a UV-Vis spectrometer. The sensor revealed a good linear response to ketoprofen enantiomers in the concentration range of 8.33-33.3 μM with a detection limit of 4.52 μM and relative standard deviation of 3.73%. The proposed method was utilized for the determination of ketoprofen racemic mixtures in water samples and commercial tablets. The method excels by its simplicity, low cost, and good availability of materials.
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Affiliation(s)
- Asma Obaid
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia.,Department of Chemistry, Faculty of Science, Jazan University, Jazan, Saudi Arabia
| | | | - Siti Munirah Saharin
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia.,University Malaya Centre for Ionic Liquids, University of Malaya, Kuala Lumpur, Malaysia
| | - Sharifah Mohamad
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia.,University Malaya Centre for Ionic Liquids, University of Malaya, Kuala Lumpur, Malaysia
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Naghdi E, Fakhari AR, Baca M, De Malsche W. Simultaneous enantioseparation of nonsteroidal anti-inflammatory drugs by a one-dimensional liquid chromatography technique using a dynamically coated chiral porous silicon pillar array column. J Chromatogr A 2019; 1615:460752. [PMID: 31839355 DOI: 10.1016/j.chroma.2019.460752] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 11/02/2019] [Accepted: 11/28/2019] [Indexed: 01/03/2023]
Abstract
The preparation of a highly efficient chiral liquid chromatography (LC) column is explored by dynamically coating a reversed-phase porous silicon pillar array column with hydroxypropyl-β-cyclodextrin (Hp-β-CD) as the chiral selector. Analyte mixtures composed of non-steroidal anti-inflammatory drugs were tested to reveal the enantioseparation potential of the column. The mechanism of chiral discrimination was investigated. The adsorbed Hp-β-CDs on the column surface experience different interaction with enantiomers. The chiral stationary phase showed satisfying stability and could be easily restored by recovering the selector with sufficient flushing and repeating the loading procedure. The peak capacity of the column was evaluated, and it was found high enough to separate three enantiomer couples using a one-dimensional LC technique.
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Affiliation(s)
- Elahe Naghdi
- Faculty of Chemistry, Shahid Beheshti University, G.C., Tehran, Iran; µFlow Group, Department of Chemical Engineering, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium
| | - Ali Reza Fakhari
- Faculty of Chemistry, Shahid Beheshti University, G.C., Tehran, Iran
| | - Martyna Baca
- µFlow Group, Department of Chemical Engineering, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium
| | - Wim De Malsche
- µFlow Group, Department of Chemical Engineering, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium.
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7
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Surface molecular imprinting of nylon fibers for chiral recognition ofd‐phenyllactic acid. POLYM INT 2019. [DOI: 10.1002/pi.5850] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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8
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Peñín-Ibáñez M, Santos-Delgado MJ, Polo-Diez LM. Determination of profens in pharmaceuticals by heart-cut achiral-chiral two-dimensional HPLC. SEPARATION SCIENCE PLUS 2018. [DOI: 10.1002/sscp.201700038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Miguel Peñín-Ibáñez
- Department of Analytical Chemistry; Faculty of Chemistry; Complutense University of Madrid; Madrid Spain
| | - María Jesús Santos-Delgado
- Department of Analytical Chemistry; Faculty of Chemistry; Complutense University of Madrid; Madrid Spain
| | - Luís María Polo-Diez
- Department of Analytical Chemistry; Faculty of Chemistry; Complutense University of Madrid; Madrid Spain
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9
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Gherdaoui D, Bekdouche H, Zerkout S, Fegas R, Righezza M. Chiral separation of ketoprofen on an achiral NH2 column by HPLC using vancomycin as chiral mobile phase additive. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2016. [DOI: 10.1007/s13738-016-0951-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Lv L, Wang L, Zou Y, Chen R, Yu J. Chiral separation by nonaqueous capillary electrophoresis using l-sorbose–boric acid complexes as chiral ion-pair selectors. RSC Adv 2016. [DOI: 10.1039/c6ra21806g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A chiral nonaqueous capillary electrophoresis (NACE) method using l-sorbose–boric acid complexes as the chiral ion-pair selectors was developed for enantioseparation of nineteen chiral analytes.
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Affiliation(s)
- Lili Lv
- Key Laboratory of Pharmaceutical Quality Control of Hebei Province
- College of Pharmaceutical Sciences
- Hebei University
- Baoding 071002
- China
| | - Lijuan Wang
- Key Laboratory of Pharmaceutical Quality Control of Hebei Province
- College of Pharmaceutical Sciences
- Hebei University
- Baoding 071002
- China
| | - Yanan Zou
- Key Laboratory of Pharmaceutical Quality Control of Hebei Province
- College of Pharmaceutical Sciences
- Hebei University
- Baoding 071002
- China
| | - Rui Chen
- Key Laboratory of Pharmaceutical Quality Control of Hebei Province
- College of Pharmaceutical Sciences
- Hebei University
- Baoding 071002
- China
| | - Jiaojiao Yu
- Key Laboratory of Pharmaceutical Quality Control of Hebei Province
- College of Pharmaceutical Sciences
- Hebei University
- Baoding 071002
- China
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11
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Mavroudi MC, Kapnissi-Christodoulou CP. Combined use ofl-alanine tert butyl ester lactate and trimethyl-β-cyclodextrin for the enantiomeric separations of 2-arylpropionic acids nonsteroidal anti-inflammatory drugs. Electrophoresis 2015; 36:2442-50. [DOI: 10.1002/elps.201500143] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 05/21/2015] [Accepted: 05/21/2015] [Indexed: 11/07/2022]
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12
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Padró JM, Osorio-Grisales J, Arancibia JA, Olivieri AC, Castells CB. Scope of partial least-squares regression applied to the enantiomeric composition determination of ketoprofen from strongly overlapped chromatographic profiles. J Sep Sci 2015; 38:2423-30. [DOI: 10.1002/jssc.201500217] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Revised: 04/27/2015] [Accepted: 04/27/2015] [Indexed: 12/14/2022]
Affiliation(s)
- Juan M. Padró
- LIDMA (Laboratorio de Investigación y Desarrollo de Métodos Analíticos) y División Química Analítica; Universidad Nacional de La Plata; La Plata Argentina
| | - Jaiver Osorio-Grisales
- LIDMA (Laboratorio de Investigación y Desarrollo de Métodos Analíticos) y División Química Analítica; Universidad Nacional de La Plata; La Plata Argentina
| | - Juan A. Arancibia
- Departamento de Química Analítica, Facultad de Ciencias Bioquímicas y Farmacéuticas; Universidad Nacional de Rosario, Instituto de Química de Rosario (IQUIR-CONICET); Rosario Argentina
| | - Alejandro C. Olivieri
- Departamento de Química Analítica, Facultad de Ciencias Bioquímicas y Farmacéuticas; Universidad Nacional de Rosario, Instituto de Química de Rosario (IQUIR-CONICET); Rosario Argentina
| | - Cecilia B. Castells
- LIDMA (Laboratorio de Investigación y Desarrollo de Métodos Analíticos) y División Química Analítica; Universidad Nacional de La Plata; La Plata Argentina
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13
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Zou Y, Wang L, Liu Q, Liu H, Li F. Enantioseparations of 11 Amino Alcohols Using Di-n-amyl l-Tartrate–Boric Acid Complex as Chiral Mobile Phase Additive by RP-HPLC. Chromatographia 2015. [DOI: 10.1007/s10337-015-2891-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Jin D, Zhao Y, Min ZZ, Lee YI. (S)-1-methyl-4-(5-(3-aminopyrrolidin-1-yl)-2,4-dinitrophenyl)piperazine as a novel chiral derivatization reagent for high-performance liquid chromatographic analysis of carboxylic acid enantiomers. Microchem J 2015. [DOI: 10.1016/j.microc.2014.08.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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15
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Jia DX, Ai ZG, Xue YP, Zheng YG. Chiral ligand-exchange high-performance liquid chromatography with copper (II)-L-phenylalanine complexes for separation of 3,4-dimethoxy-α-methylphenylalanine racemes. Anal Bioanal Chem 2014; 406:7687-94. [DOI: 10.1007/s00216-014-8117-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Revised: 08/13/2014] [Accepted: 08/15/2014] [Indexed: 11/25/2022]
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16
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Hatami M, Farhadi K. Analysis of ketoprofen enantiomers in human and rat plasma by hollow-fiber-based liquid-phase microextraction and chiral mobile-phase additive HPLC. CAN J CHEM 2013. [DOI: 10.1139/cjc-2013-0228] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A simple, inexpensive, and efficient preconcentration and cleanup three-phase hollow fiber liquid-phase microextraction method (HF-LPME) was developed for the extraction of the anti-inflammatory ketoprofen (KTP) from human and rat plasma and HPLC enantioseparation of its enantiomers using vancomycin as a chiral mobile-phase additive with an achiral C8 column. The effects of different parameters influencing the efficiency of extraction were optimized for aqueous samples. Under optimized conditions, KTP enantiomers were extracted from 0.5 mL of plasma diluted to 5 mL with salinated and acidified deionized water (pH = 2) with 25 μL of alkalinized acceptor phase (pH = 11) during 30 min at room temperature. The mean recoveries of (−)-(R)- and (+)-(S)-KTP were 72.8% and 70.9%, respectively. The quantification limit was 20 ng/mL with linear response over the 20–2000 ng/mL concentration range for both enantiomers. Assay precision was studied within-day and between-day using 100 ng/mL KTP solutions. For both KTP enantiomers, relative standard deviations were lower than 12%. The proposed microextraction method was applied for the extraction of KTP enantiomers from human and rat plasma samples after oral administration of pure (±)-KTP in 4 mg/kg dosage for rats and 50 mg dosage for humans to assess the enantiospecific bioavailability of KTP enantiomers in their plasma. In vivo inversion studies revealed that the bioavailability of S-KTP is higher than that of the R enantiomers in rat, but they are similar in human plasma. The developed method showed that HF-LPME is a promising technique for sample preparation for the analyses of chiral drugs in biological samples.
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Affiliation(s)
- Mehdi Hatami
- Department of Analytical Chemistry, Faculty of Chemistry, Urmia University, Urmia, Iran
- Department of Chemical Engineering, Urmia University of Technology, Urmia, Iran
| | - Khalil Farhadi
- Department of Analytical Chemistry, Faculty of Chemistry, Urmia University, Urmia, Iran
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Tong S, Zheng Y, Yan J. Application and comparison of high performance liquid chromatography and high speed counter-current chromatography in enantioseparation of (±)-2-phenylpropionic acid. J Chromatogr A 2013; 1281:79-86. [DOI: 10.1016/j.chroma.2013.01.056] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2012] [Revised: 01/10/2013] [Accepted: 01/11/2013] [Indexed: 11/16/2022]
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18
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Structural stability–chromatographic retention relationship on exenatide diastereomer separation. Anal Bioanal Chem 2012; 404:2437-44. [DOI: 10.1007/s00216-012-6352-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Revised: 08/03/2012] [Accepted: 08/13/2012] [Indexed: 10/27/2022]
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Xu J, Zhao W, Ning Y, Bashari M, Chen Y, Jin Z, Yang N, Xu X. Enantiomer separation of phenyllactic acid by HPLC with Hp-β-cyclodextrin as chiral mobile phase additive. J INCL PHENOM MACRO 2012. [DOI: 10.1007/s10847-012-0228-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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20
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Tang K, Miao J, Zhou T, Song L. Kinetic study on reactive extraction for chiral separation of phenylsuccinic acid enantiomers. Sci China Chem 2010. [DOI: 10.1007/s11426-010-4143-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Ye J, Yu W, Chen G, Shen Z, Zeng S. Enantiomeric separation of 2-arylpropionic acid nonsteroidal anti-inflammatory drugs by HPLC with hydroxypropyl-beta-cyclodextrin as chiral mobile phase additive. Biomed Chromatogr 2010; 24:799-807. [PMID: 20017213 DOI: 10.1002/bmc.1365] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The enantio-separations of eight 2-arylpropionic acid nonsteroidal anti-inflammatory drugs (2-APA NSAIDs) were established using reversed-phase high-performance liquid chromatography with hydroxypropyl-beta-cyclodextrin (HP-beta-CD) as chiral mobile phase additive for studying the stereoselective skin permeation of suprofen, ketoprofen, naproxen, indoprofen, fenoprofen, furbiprofen, ibuprofen and carprofen. The effects of the mobile phase composition, concentration of HP-beta-CD and column temperature on retention and enantioselective separation were investigated. With 2-APA NSAIDs as acidic analytes, the retention times and resolutions of the enantiomers were strongly related to the pH of the mobile phase. In addition, both the concentration of HP-beta-CD and temperature had a great effect on retention time, but only a slight or almost no effect on resolutions of the analytes. Enantioseparations were achieved on a Shimpack CLC-ODS (150 x 4.6 mm i.d., 5 microm) column. The mobile phase was a mixture of methanol and phosphate buffer (pH 4.0-5.5, 20 mM) containing 25 mM HP-beta-CD. This method was flexible, simple and economically advantageous over the use of chiral stationary phase, and was successfully applied to the enantioselective determination of the racemic 2-APA NSAIDs in an enantioselective skin permeation study.
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Affiliation(s)
- Jincui Ye
- Department of Pharmaceutical Analysis and Drug Metabolism, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China
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22
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Taha EA, Salama NN, Wang S. Micelle enhanced fluorimetric and thin layer chromatography densitometric methods for the determination of (+/-) citalopram and its S-enantiomer escitalopram. ANALYTICAL CHEMISTRY INSIGHTS 2009; 4:1-9. [PMID: 19652757 PMCID: PMC2716673 DOI: 10.4137/aci.s2274] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two sensitive and validated methods were developed for determination of a racemic mixture citalopram and its enantiomer S-(+) escitalopram. The first method was based on direct measurement of the intrinsic fluorescence of escitalopram using sodium dodecyl sulfate as micelle enhancer. This was further applied to determine escitalopram in spiked human plasma, as well as in the presence of common and co-administrated drugs. The second method was TLC densitometric based on various chiral selectors was investigated. The optimum TLC conditions were found to be sensitive and selective for identification and quantitative determination of enantiomeric purity of escitalopram in drug substance and drug products. The method can be useful to investigate adulteration of pure isomer with the cheap racemic form.
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Affiliation(s)
- Elham A Taha
- National Organization for Drug Control and Research (NODCAR), 6-Abu Hazem Street, Pyramids Ave. P.O. Box 29, 35521 Giza, Egypt.
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23
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Stefan-van Staden RI, Suzan Nhlapo N, Frederick van Staden J, Aboul-Enein HY. Enantioanalysis of S-Ketoprofen Using Enantioselective, Potentiometric Membrane Electrodes. ANAL LETT 2009. [DOI: 10.1080/00032710902722020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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24
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Taha EA, Salama NN, Wang S. Enantioseparation of cetirizine by chromatographic methods and discrimination by1H-NMR. Drug Test Anal 2009; 1:118-24. [DOI: 10.1002/dta.23] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Zhang H, Shao H, A Y, Zhang Z. Optimized Conditions of Enantioseparation of β-Blockers by CZE Using Carboxymethyl-β-Cyclodextrin as Chiral Selector. Chromatographia 2008. [DOI: 10.1365/s10337-008-0747-7] [Citation(s) in RCA: 17] [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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