1
|
Fouad A, El-Sayed DH, Salman BE, Bakr HH, Adel SE, Alzarak TM, Mahmoud A. Macrocyclic Antibiotics as Effective Chiral Selectors in Liquid Chromatography for Enantiomeric Separation of Pharmaceutical Compounds: A Review. Crit Rev Anal Chem 2023:1-19. [PMID: 37342891 DOI: 10.1080/10408347.2023.2224442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/23/2023]
Abstract
Chiral separation techniques play a crucial role in the pharmaceutical industry, where the enantiomeric purity of drugs can have a significant impact on their efficacy and safety. Macrocyclic antibiotics are highly effective chiral selectors used in various chiral separation techniques, including LC, HPLC, SMB, and TLC, offering reproducible results and a wide range of applications. However, developing robust and efficient immobilization mechanisms for these chiral selectors remains a challenge. This review article focuses on various immobilization approaches, such as immobilization, coating, encapsulation, and photosynthesis, that have been applied to immobilize macrocyclic antibiotics on their support. Commercially available macrocyclic antibiotics for conventional liquid chromatography include Vancomycin, Norvancomycin, Eremomycin, Teicoplanin, Ristocetin A, Rifamycin, Avoparcin, Bacitracin, and others. In addition, capillary (nano) liquid chromatography has also been used in chiral separation utilizing Vancomycin, Polymyxin B, Daptomycin, and Colistin Sulfate. Macrocyclic antibiotic-based CSPs have been extensively applied due to their reproducible results, ease of use, and broad range of applications, capable of separating a large number of racemates.
Collapse
Affiliation(s)
- Ali Fouad
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
| | | | | | - Hanan H Bakr
- Faculty of Science, Tanta University, Tanta, Egypt
| | - Shahd E Adel
- Faculty of Science, Tanta University, Tanta, Egypt
| | | | - Abdelrahman Mahmoud
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
| |
Collapse
|
2
|
Ghanem A, Marzouk AA, El-Adl SM, Fouad A. A Polymer-based Monolithic Capillary Column with Polymyxin-B Chiral Selector for the Enantioselective Nano-High Performance Liquid Chromatographic Pharmaceutical Analysis. J Chromatogr A 2021; 1662:462714. [PMID: 34902721 DOI: 10.1016/j.chroma.2021.462714] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 11/22/2021] [Accepted: 11/24/2021] [Indexed: 11/12/2022]
Abstract
Herein, we report the first use of Polymyxin-B antibiotic as a enantio-selector in polymer monolithic capillary. The capillaries were functionalised, characterized and tested for the enantioselective nano-HPLC separation of 50 racemic pharmaceutical drugs. They have been easily prepared by immobilizing Polymyxin-B over the organic polymer for 48 h (P1) or encapsulating Polymyxin-B within the organic polymer (P2) and tested for the enantioselective resolution of racemic drugs. Acceptable resolution was achieved for 21 drugs using RP-HPLC conditions on both (P1) and (P2) capillary columns, while no separation was observed under NP-HPLC conditions. Polymyxin-B is commercially available, easily solubilized and stable in both acidic and neutral media. The developed Polymyxin-B-based polymer monolithic capillaries provide a promising expansion of platform in enantioselective HPLC separations.
Collapse
Affiliation(s)
- Ashraf Ghanem
- Chirality Program, Faculty of Science and Technology, University of Canberra, ACT, 2601, Australia.
| | - Adel A Marzouk
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut, 71524, Egypt.
| | - Sobhy M El-Adl
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt.
| | - Ali Fouad
- Chirality Program, Faculty of Science and Technology, University of Canberra, ACT, 2601, Australia; Pharmaceutical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut, 71524, Egypt.
| |
Collapse
|
3
|
Vashistha VK, Kumar A, Das DK, Alwera S, Vyas R, Sharma V, Sethi S, Pullabhotla R, Nagar H. Different approaches in thin-layer chromatography for enantioresolution of acebutolol using colistin sulfate as chiral selector. JPC-J PLANAR CHROMAT 2021. [DOI: 10.1007/s00764-021-00109-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
4
|
Fouad A, Marzouk AA, Shaykoon MSA, Ibrahim SM, El-Adl SM, Ghanem A. Daptomycin: A Novel Macrocyclic Antibiotic as a Chiral Selector in an Organic Polymer Monolithic Capillary for the Enantioselective Analysis of a Set of Pharmaceuticals. Molecules 2021; 26:molecules26123527. [PMID: 34207780 PMCID: PMC8227699 DOI: 10.3390/molecules26123527] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/01/2021] [Accepted: 06/04/2021] [Indexed: 12/11/2022] Open
Abstract
Daptomycin, a macrocyclic antibiotic, is here used as a new chiral selector in preparation of chiral stationary phase (CSP) in a recently prepared polymer monolithic capillary. The latter is prepared using the copolymerization of the monomers glycidyl methacrylate (GMA) and ethylene glycol dimethacrylate (EGDMA) in the presence of daptomycin in water. Under reversed phase conditions (RP), the prepared capillaries were tested for the enantioselective nanoliquid chromatographic separation of fifty of the racemic drugs of different pharmacological groups, such as adrenergic blockers, H1-blockers, NSAIDs, antifungal drugs, and others. Baseline separation was attained for many drugs under RP-HPLC. Daptomycin expands the horizon of chiral selectors in HPLC.
Collapse
Affiliation(s)
- Ali Fouad
- Chirality Program, Faculty of Science and Technology, University of Canberra, Bruce, Canberra 2601, Australia;
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut 71524, Egypt; (A.A.M.); (M.S.A.S.)
| | - Adel A. Marzouk
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut 71524, Egypt; (A.A.M.); (M.S.A.S.)
| | - Montaser Sh. A. Shaykoon
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut 71524, Egypt; (A.A.M.); (M.S.A.S.)
| | - Samy M. Ibrahim
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt; (S.M.I.); (S.M.E.-A.)
| | - Sobhy M. El-Adl
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt; (S.M.I.); (S.M.E.-A.)
| | - Ashraf Ghanem
- Chirality Program, Faculty of Science and Technology, University of Canberra, Bruce, Canberra 2601, Australia;
- Correspondence:
| |
Collapse
|
5
|
In situ growth of COF-rLZU1 on the surface of silica sphere as stationary phase for high performance liquid chromatography. Talanta 2021; 221:121612. [DOI: 10.1016/j.talanta.2020.121612] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 08/24/2020] [Accepted: 08/28/2020] [Indexed: 11/21/2022]
|
6
|
Recent advances in preparation and applications of monolithic chiral stationary phases. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2019.115774] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
7
|
Xu D, Wang Q, Sánchez-López E, Jiang Z, Marina ML. Preparation of an O-[2-(methacryloyloxy)-ethylcarbamoyl]-10,11-dihydroquinidine-silica hybrid monolithic column for the enantioseparation of amino acids by nano-liquid chromatography. J Chromatogr A 2019; 1593:63-72. [DOI: 10.1016/j.chroma.2019.01.065] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 01/21/2019] [Accepted: 01/23/2019] [Indexed: 12/16/2022]
|
8
|
Fouad A, Shaykoon MSA, Ibrahim SM, El-Adl SM, Ghanem A. Colistin Sulfate Chiral Stationary Phase for the Enantioselective Separation of Pharmaceuticals Using Organic Polymer Monolithic Capillary Chromatography. Molecules 2019; 24:molecules24050833. [PMID: 30813595 PMCID: PMC6429358 DOI: 10.3390/molecules24050833] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 02/17/2019] [Accepted: 02/21/2019] [Indexed: 11/25/2022] Open
Abstract
A new functionalized polymer monolithic capillary with a macrocyclic antibiotic, namely colistin sulfate, as chiral selector was prepared via the copolymerization of binary monomer mixtures consisting of glycidyl methacrylate (GMA) and ethylene glycol dimethacrylate (EGDMA) in porogenic solvents namely 1-propanol and 1,4-butanediol, in the presence of azobisiso-butyronitrile (AIBN) as initiator and colistin sulfate. The prepared capillaries were investigated for the enantioselective nano-LC separation of a group of racemic pharmaceuticals, namely, α- and β-blockers, anti-inflammatory drugs, antifungal drugs, norepinephrine-dopamine reuptake inhibitors, catecholamines, sedative hypnotics, antihistaminics, anticancer drugs, and antiarrhythmic drugs. Acceptable separation was achieved for many drugs using reversed phase chromatographic conditions with no separation achieved under normal phase conditions. Colistin sulfate appears to be useful addition to the available macrocyclic antibiotic chiral phases used in liquid chromatography.
Collapse
Affiliation(s)
- Ali Fouad
- Chirality Program, Faculty of Science and Technology, University of Canberra, Canberra, ACT 2601, Australia.
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut 71524, Egypt.
| | - Montaser Sh A Shaykoon
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut 71524, Egypt.
| | - Samy M Ibrahim
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt.
| | - Sobhy M El-Adl
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt.
| | - Ashraf Ghanem
- Chirality Program, Faculty of Science and Technology, University of Canberra, Canberra, ACT 2601, Australia.
| |
Collapse
|
9
|
A facile and efficient single-step approach for the fabrication of vancomycin functionalized polymer-based monolith as chiral stationary phase for nano-liquid chromatography. J Chromatogr A 2018; 1557:43-50. [DOI: 10.1016/j.chroma.2018.05.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 04/25/2018] [Accepted: 05/02/2018] [Indexed: 11/17/2022]
|
10
|
Knob R, Hanson RL, Tateoka OB, Wood RL, Guerrero-Arguero I, Robison RA, Pitt WG, Woolley AT. Sequence-specific sepsis-related DNA capture and fluorescent labeling in monoliths prepared by single-step photopolymerization in microfluidic devices. J Chromatogr A 2018; 1562:12-18. [PMID: 29859687 DOI: 10.1016/j.chroma.2018.05.042] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 05/16/2018] [Accepted: 05/20/2018] [Indexed: 02/08/2023]
Abstract
Fast determination of antibiotic resistance is crucial in selecting appropriate treatment for sepsis patients, but current methods based on culture are time consuming. We are developing a microfluidic platform with a monolithic column modified with oligonucleotides designed for sequence-specific capture of target DNA related to the Klebsiella pneumoniae carbapenemase (KPC) gene. We developed a novel single-step monolith fabrication method with an acrydite-modified capture oligonucleotide in the polymerization mixture, enabling fast monolith preparation in a microfluidic channel using UV photopolymerization. These prepared columns had a threefold higher capacity compared to monoliths prepared in a multistep process involving Schiff-base DNA attachment. Conditions for denaturing, capture and fluorescence labeling using hybridization probes were optimized with synthetic 90-mer oligonucleotides. These procedures were applied for extraction of a PCR amplicon from the KPC antibiotic resistance gene in bacterial lysate obtained from a blood sample spiked with E. coli. The results showed similar eluted peak areas for KPC amplicon extracted from either hybridization buffer or bacterial lysate. Selective extraction of the KPC DNA was verified by real time PCR on eluted fractions. These results show great promise for application in an integrated microfluidic diagnostic system that combines upstream blood sample preparation and downstream single-molecule counting detection.
Collapse
Affiliation(s)
- Radim Knob
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84602, United States
| | - Robert L Hanson
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84602, United States
| | - Olivia B Tateoka
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, UT 84602, United States
| | - Ryan L Wood
- Department of Chemical Engineering, Brigham Young University, Provo, UT 84602, United States
| | - Israel Guerrero-Arguero
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, UT 84602, United States
| | - Richard A Robison
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, UT 84602, United States
| | - William G Pitt
- Department of Chemical Engineering, Brigham Young University, Provo, UT 84602, United States
| | - Adam T Woolley
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84602, United States.
| |
Collapse
|
11
|
|
12
|
Abdollahpour A, Heydari R, Shamsipur M. Two Synthetic Methods for Preparation of Chiral Stationary Phases Using Crystalline Degradation Products of Vancomycin: Column Performance for Enantioseparation of Acidic and Basic Drugs. AAPS PharmSciTech 2017; 18:1855-1862. [PMID: 27844416 DOI: 10.1208/s12249-016-0660-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Accepted: 10/31/2016] [Indexed: 11/30/2022] Open
Abstract
Two chiral stationary phases (CSPs) based on crystalline degradation products (CDPs) of vancomycin by using different synthetic methods were prepared and compared. Crystalline degradation products of vancomycin were produced by hydrolytic loss of ammonia from vancomycin molecules. Performances of two chiral columns prepared with these degradation products were investigated using several acidic and basic drugs as model analytes. Retention and resolution of these analytes on the prepared columns, as two main parameters, in enantioseparation were studied. The results demonstrated that the stationary phase preparation procedure has a significant effect on the column performance. The resolving powers of prepared columns for enantiomers resolution were changed with the variation in vancomycin-CDP coverage on the silica support. Elemental analysis was used to monitor the surface coverage of silica support by vancomycin-CDP. The results showed that both columns can be successfully applied to chiral separation studies.
Collapse
|
13
|
Solid supports for extraction and preconcentration of proteins and peptides in microfluidic devices: A review. Anal Chim Acta 2016; 955:1-26. [PMID: 28088276 DOI: 10.1016/j.aca.2016.12.017] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 12/02/2016] [Accepted: 12/07/2016] [Indexed: 01/08/2023]
Abstract
Determination of proteins and peptides is among the main challenges of today's bioanalytical chemistry. The application of microchip technology in this field is an exhaustively developed concept that aims to create integrated and fully automated analytical devices able to quantify or detect one or several proteins from a complex matrix. Selective extraction and preconcentration of targeted proteins and peptides especially from biological fluids is of the highest importance for a successful realization of these microsystems. Incorporation of solid structures or supports is a convenient solution employed to face these demands. This review presents a critical view on the latest achievements in sample processing techniques for protein determination using solid supports in microfluidics. The study covers the period from 2006 to 2015 and focuses mainly on the strategies based on microbeads, monolithic materials and membranes. Less common approaches are also briefly discussed. The reviewed literature suggests future trends which are discussed in the concluding remarks.
Collapse
|
14
|
Hong T, Yang X, Xu Y, Ji Y. Recent advances in the preparation and application of monolithic capillary columns in separation science. Anal Chim Acta 2016; 931:1-24. [DOI: 10.1016/j.aca.2016.05.013] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 05/07/2016] [Accepted: 05/09/2016] [Indexed: 12/12/2022]
|
15
|
Fanali C, Fanali S. Chiral Separations using Miniaturized Techniques: State of the Art and Perspectives. Isr J Chem 2016. [DOI: 10.1002/ijch.201600061] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Chiara Fanali
- Centro Integrato di Ricerca; Campus Bio-Medico University; Rome (Italy)
| | - Salvatore Fanali
- Institute of Chemical Methodologies; Italian National Research Council (CNR); Area della Ricerca di Roma I; Via Salaria km. 29.300-00015 Monterotondo, Rome (Italy)
| |
Collapse
|
16
|
Enantioseparations in open-tubular capillary electrochromatography: Recent advances and applications. J Chromatogr A 2016; 1467:145-154. [PMID: 27461922 DOI: 10.1016/j.chroma.2016.07.039] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 07/14/2016] [Accepted: 07/15/2016] [Indexed: 12/25/2022]
Abstract
This review highlights recent advances and applications in open-tubular capillary electrochromatography (OT-CEC) for enantioseparations during the last decade. Although extensive research has been conducted in the area of separations by use of CEC, and a big number of reviews have been published, there is not a review on exclusively the use of chiral stationary phases (CSPs) in OT-CEC for enantioseparations. Therefore, in this review, the design and synthesis of different CSPs are presented, and their potential applications in OT-CEC for enantioseparations are discussed. The different approaches to CSP development include chiral nanomaterials, porous layers, molecular imprinting, sol-gel technique, polyelectrolyte multilayer coating, polymeric coating and others.
Collapse
|
17
|
Ikegami T, Tanaka N. Recent Progress in Monolithic Silica Columns for High-Speed and High-Selectivity Separations. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2016; 9:317-342. [PMID: 27306311 DOI: 10.1146/annurev-anchem-071114-040102] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Monolithic silica columns have greater (through-pore size)/(skeleton size) ratios than particulate columns and fixed support structures in a column for chemical modification, resulting in high-efficiency columns and stationary phases. This review looks at how the size range of monolithic silica columns has been expanded, how high-efficiency monolithic silica columns have been realized, and how various methods of silica surface functionalization, leading to selective stationary phases, have been developed on monolithic silica supports, and provides information on the current status of these columns. Also discussed are the practical aspects of monolithic silica columns, including how their versatility can be improved by the preparation of small-sized structural features (sub-micron) and columns (1 mm ID or smaller) and by optimizing reaction conditions for in situ chemical modification with various restrictions, with an emphasis on recent research results for both topics.
Collapse
Affiliation(s)
- Tohru Ikegami
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Kyoto 606-8585, Japan;
| | | |
Collapse
|
18
|
Declerck S, Vander Heyden Y, Mangelings D. Enantioseparations of pharmaceuticals with capillary electrochromatography: A review. J Pharm Biomed Anal 2016; 130:81-99. [PMID: 27156645 DOI: 10.1016/j.jpba.2016.04.024] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 04/13/2016] [Accepted: 04/17/2016] [Indexed: 11/19/2022]
Abstract
The chiral separation of pharmaceuticals is one of the major research topics in the pharmaceutical industry. Chromatographic techniques are most frequently used in this context. Separations in capillary electrochromatography (CEC) are an alternative and achieved by chromatographic retention and electrophoretic mobility principles. As a result, CEC is characterized by a high selectivity and efficiency. The limited number of stationary phases specifically developed for CEC, the low number of commercially available CEC columns, the frits to maintain the stationary phase, which forms fragile spots in the columns, and the limited column robustness and reproducibility, make CEC not very attractive for industrial application. However, CEC is still applied and studied in the academic field. This review discusses the enantioseparation of drugs in CEC published during the last four years, with a critical view on the reproducibility and the practical utility of these applications.
Collapse
Affiliation(s)
- Sven Declerck
- Department of Analytical Chemistry and Pharmaceutical Technology (FABI), Center for Pharmaceutical Research (CePhaR), Vrije Universiteit Brussel-VUB, Laarbeeklaan 103, B-1090 Brussels, Belgium.
| | - Yvan Vander Heyden
- Department of Analytical Chemistry and Pharmaceutical Technology (FABI), Center for Pharmaceutical Research (CePhaR), Vrije Universiteit Brussel-VUB, Laarbeeklaan 103, B-1090 Brussels, Belgium.
| | - Debby Mangelings
- Department of Analytical Chemistry and Pharmaceutical Technology (FABI), Center for Pharmaceutical Research (CePhaR), Vrije Universiteit Brussel-VUB, Laarbeeklaan 103, B-1090 Brussels, Belgium.
| |
Collapse
|
19
|
Dixit S, Park JH. Enantioseparation of basic chiral drugs on a carbamoylated erythromycin-zirconia hybrid monolith using capillary electrochromatography. J Chromatogr A 2015; 1416:129-36. [PMID: 26372443 DOI: 10.1016/j.chroma.2015.09.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 08/31/2015] [Accepted: 09/06/2015] [Indexed: 10/23/2022]
Abstract
An organic-inorganic hybrid monolithic column was prepared within the confines of a capillary via a single-step in situ sol-gel approach using zirconium tetrabutoxide as a precursor to compose the inorganic backbone and 3-triethoxysilylpropyl carbamoylated derivative of erythromycin (TEOSPC-ERY) as a co-precursor to introduce the organic chiral selector moiety in the zirconia backbone. The resulting carbamoylated ERY-zirconia hybrid monolith (ERY-ZHM) showed homogeneous morphology with well-defined through pores and was tightly connected with the inner wall of the capillary. The column was employed for capillary electrochromatographic enantioseparation of six basic chiral drugs in mobile phases (MPs) consisting of acetonitrile (ACN) and triethylammonium acetate (TEAA) buffer. The effects of composition of MP and applied voltage on chiral separation were investigated by using propranolol as a representative analyte. The highest resolution (Rs=3.33) was obtained with a MP consisting of 10/90 (v/v) ACN/TEAA buffer (10mM, pH 7), 10 kV applied voltage and 25°C capillary temperature. The relative standard deviations for resolution values regarding run to run, day to day, column to column and batch to batch repeatability were 0.41%, 0.89%, 1.80% and 2.26% (for n=3), respectively, indicating satisfactory stability of columns and reproducibility of column preparation process.
Collapse
Affiliation(s)
- Shuchi Dixit
- Department of Chemistry, Yeungnam University, Gyeongsan 38541, South Korea.
| | - Jung Hag Park
- Department of Chemistry, Yeungnam University, Gyeongsan 38541, South Korea.
| |
Collapse
|
20
|
Li W, Wang B, Yang W, Deng J. Chiral Monolithic Absorbent Constructed by Optically Active Helical-Substituted Polyacetylene and Graphene Oxide: Preparation and Chiral Absorption Capacity. Macromol Rapid Commun 2014; 36:319-26. [DOI: 10.1002/marc.201400546] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 11/02/2014] [Indexed: 12/13/2022]
Affiliation(s)
- Weifei Li
- State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beijing 100029 China
- College of Materials Science and Engineering; Beijing University of Chemical Technology; Beijing 100029 China
| | - Bo Wang
- State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beijing 100029 China
- College of Materials Science and Engineering; Beijing University of Chemical Technology; Beijing 100029 China
| | - Wantai Yang
- State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beijing 100029 China
- College of Materials Science and Engineering; Beijing University of Chemical Technology; Beijing 100029 China
| | - Jianping Deng
- State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beijing 100029 China
- College of Materials Science and Engineering; Beijing University of Chemical Technology; Beijing 100029 China
| |
Collapse
|