1
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Woiwode U, Sievers-Engler A, Lämmerhofer M. Cross-linked polysiloxane-coated stable bond O-9-(2,6-diisopropylphenylcarbamoyl)quinine and quinidine chiral stationary phases as well as application in enantioselective cryo-HPLC. Electrophoresis 2024; 45:989-999. [PMID: 37916661 DOI: 10.1002/elps.202300182] [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: 08/18/2023] [Revised: 10/10/2023] [Accepted: 10/13/2023] [Indexed: 11/03/2023]
Abstract
In this work, brush-type chiral stationary phases (CSPs) with O-9-(2,6-diisopropylphenylcarbamoyl)-modified quinidine (DIPPCQD-brush/-SH) and O-9-(2,6-diisopropylphenylcarbamoyl)-modified quinine (DIPPCQN-brush/-SH) were prepared as benchmarks for comparison with new corresponding polymeric CSPs with more stable bonding chemistry. These polymeric CSPs were prepared by coating a thin poly(3-mercaptopropyl)-methylsiloxane film together with the chiral selector onto vinyl-modified silica. In a second step, immobilization of the quinine/quinidine derivatives as well as cross-linking of the polysiloxane film to the vinyl-silica is achieved by a double thiol-ene click reaction. The polymeric CSPs exhibited similar enantioselectivity as the corresponding brush phases, but showed lower chromatographic efficiencies. Chiral acidic substances were separated into enantiomers (e.g., N-protected amino acids, herbicides like dichlorprop) in accordance with an enantioselective anion-exchange process. Oxidation of residual thiol groups of the polymer DIPPCQN-CSP introduced sulfonic acid co-ligands on the silica surface, which resulted in greatly reduced retention times. Acting as immobilized counterions, they allowed to reduce the concentration of counterions in the mobile phase, which is favorable for liquid chromatography (LC)-electrospray ionization-mass spectrometry application. Ibuprofen showed a single peak under ambient column temperature. However, application of cryogenic cooling of the column enabled to achieve baseline separation at -20°C column temperature. It can be explained by an enthalpically dominated separation, which leads to an increase in separation factors when the temperature is reduced. While it is quite uncommon to work at subzero degree column temperature, this work illustrates the potential to exploit such temperature regime for optimization of LC enantiomer separations.
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Affiliation(s)
- Ulrich Woiwode
- Institute of Pharmaceutical Sciences, Pharmaceutical (Bio-)Analysis, University of Tübingen, Tübingen, Germany
| | - Adrian Sievers-Engler
- Institute of Pharmaceutical Sciences, Pharmaceutical (Bio-)Analysis, University of Tübingen, Tübingen, Germany
| | - Michael Lämmerhofer
- Institute of Pharmaceutical Sciences, Pharmaceutical (Bio-)Analysis, University of Tübingen, Tübingen, Germany
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2
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Aslani S, Armstrong DW. Fast, sensitive LC-MS resolution of α -hydroxy acid biomarkers via SPP-teicoplanin and an alternative UV detection approach. Anal Bioanal Chem 2024; 416:3007-3017. [PMID: 38565719 DOI: 10.1007/s00216-024-05248-2] [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: 01/16/2024] [Revised: 02/20/2024] [Accepted: 02/28/2024] [Indexed: 04/04/2024]
Abstract
Enantioseparation of α -hydroxy acids is essential since specific enantiomers of these compounds can be used as disease biomarkers for diagnosis and prognosis of cancer, brain diseases, kidney diseases, diabetes, etc., as well as in the food industry to ensure quality. HPLC methods were developed for the enantioselective separation of 11 α -hydroxy acids using a superficially porous particle-based teicoplanin (TeicoShell) chiral stationary phase. The retention behaviors observed for the hydroxy acids were HILIC, reversed phase, and ion-exclusion. While both mass spectrometry and UV spectroscopy detection methods could be used, specific mobile phases containing ammonium formate and potassium dihydrogen phosphate, respectively, were necessary with each approach. The LC-MS mode was approximately two orders of magnitude more sensitive than UV detection. Mobile phase acidity and ionic strength significantly affected enantioresolution and enantioselectivity. Interestingly, higher ionic strength resulted in increased retention and enantioresolution. It was noticed that for formate-containing mobile phases, using acetonitrile as the organic modifier usually resulted in greater enantioresolution compared to methanol. However, sometimes using acetonitrile with high ammonium formate concentrations led to lengthy retention times which could be avoided by using methanol as the organic modifier. Additionally, the enantiomeric purities of single enantiomer standards were determined and it was shown that almost all standards contained some levels of enantiomeric impurities.
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Affiliation(s)
- Saba Aslani
- Department of Chemistry and Biochemistry, University of Texas at Arlington, 700 Planetarium Place, Arlington, TX, 76019, USA
| | - Daniel W Armstrong
- Department of Chemistry and Biochemistry, University of Texas at Arlington, 700 Planetarium Place, Arlington, TX, 76019, USA.
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3
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Mallik AK, Montero L, Meckelmann SW, Schmitz OJ. Facile preparation of embedded polar group-containing pentafluorophenyl stationary phases for highly selective separations of diverse analytes. J Chromatogr A 2024; 1717:464688. [PMID: 38354595 DOI: 10.1016/j.chroma.2024.464688] [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: 12/21/2023] [Revised: 01/22/2024] [Accepted: 01/25/2024] [Indexed: 02/16/2024]
Abstract
Pentafluorophenyl (PFP) stationary phase is one of the most important phases after the C18 phase in terms of its applications. Three embedded polar groups (EPG)-containing stationary phases were newly synthesized to act the EPGs as additional interaction sites. The silica surface was initially modified with (3-aminopropyl)trimethoxysilane (APS). The APS-modified silicas were coupled with 2,3,4,5,6-pentafluorobenzoic acid, 2,3,4,5,6-pentafluorophenylacetic acid, and 2,3,4,5,6-pentafluoro-anilino(oxo)acetic acid to obtain Sil-PFP-BA, Sil-PFP-AA, and Sil-PFP-AN phases, respectively. The new phases were characterized by elemental analysis, ATR-FTIR, scanning electron microscopy (SEM), and thermogravimetric analysis (TGA). The phases were evaluated with the Tanaka and Neue tests in reversed-phase liquid chromatography (RPLC). In addition, they were characterized as hydrophilic phases by the Tanaka test protocol used in hydrophilic interaction chromatography (HILIC) separation mode. The Sil-PFP-AA phase showed the highest molecular shape selectivity in RPLC, while Sil-PFP-AN achieved the highest separability in HILIC compared to the commercial PFP reference column. The Sil-PFP-AA phase was successfully applied for the analysis of capsaicinoids from real samples of fresh chili peppers (Capsicum spp.) in RPLC and the Sil-PFP-AN phase for vitamin C (ascorbic acid) in HILIC.
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Affiliation(s)
- Abul K Mallik
- Applied Analytical Chemistry, University of Duisburg-Essen, Universitaetsstr. 5, 45141 Essen, Germany; Department of Applied Chemistry and Chemical Engineering, University of Dhaka, Dhaka 1000, Bangladesh.
| | - Lidia Montero
- Applied Analytical Chemistry, University of Duisburg-Essen, Universitaetsstr. 5, 45141 Essen, Germany; Institute of Food Science Research - CIAL (CSIC-UAM), Calle Nicolas Cabrera 9, 28049 Madrid, Spain
| | - Sven W Meckelmann
- Applied Analytical Chemistry, University of Duisburg-Essen, Universitaetsstr. 5, 45141 Essen, Germany
| | - Oliver J Schmitz
- Applied Analytical Chemistry, University of Duisburg-Essen, Universitaetsstr. 5, 45141 Essen, Germany.
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4
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Laptev AY, Rozhmanova NB, Nesterenko PN. Retention behavior of carbohydrates on metal loaded chelating stationary phase under conditions of hydrophilic interaction liquid chromatography. J Chromatogr A 2024; 1714:464551. [PMID: 38065026 DOI: 10.1016/j.chroma.2023.464551] [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: 09/21/2023] [Revised: 11/17/2023] [Accepted: 11/29/2023] [Indexed: 01/05/2024]
Abstract
The chromatographic retention of carbohydrates on chelating stationary phase loaded with different metal ions was studied under conditions of hydrophilic interaction chromatography (HILIC). The chelating stationary phases represented silica microparticles with immobilized 2-hydroxyethyliminodiacetic acid (HEIDA) groups in loose form and saturated with Ca2+, Pb2+, and La3+form. The role of loaded metal ion, the acetonitrile and methanol content in the mobile phase, buffer pH and column temperature on the retention of l-(+)-arabinose, d-(+)-maltose, l-(+)-rhamnose, d-(+)-lactose, d-(+)-xylose, glucose, fructose, sucrose, mannose, maltotriose and d-(+) raffinose was studied. The investigation was mainly focused on possible contribution of the complexation in the stationary phase on retention of carbohydrates as well as on effect of the presence metal ion in HEIDA-silica on resulting HILIC behavior of. It is shown that adsorbents with immobilized metal complexes have a good potential for the separation of organic ligands under HILIC mode.
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Affiliation(s)
- A Yu Laptev
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1/3, GSP-1, Lenin Hills, Moscow 119991, Russia
| | - N B Rozhmanova
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1/3, GSP-1, Lenin Hills, Moscow 119991, Russia
| | - P N Nesterenko
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1/3, GSP-1, Lenin Hills, Moscow 119991, Russia.
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5
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Guo Y. A Survey of Polar Stationary Phases for Hydrophilic Interaction Chromatography and Recent Progress in Understanding Retention and Selectivity. Biomed Chromatogr 2022; 36:e5332. [PMID: 35001408 DOI: 10.1002/bmc.5332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 12/08/2021] [Accepted: 12/13/2021] [Indexed: 11/10/2022]
Abstract
Various polar stationary phases have become available for hydrophilic interaction chromatography (HILIC) and help drive continuous applications in biomedical, environmental and pharmaceutical areas in the past decade. Although the stationary phases for HILIC have been reviewed previously, it is an appropriate time to take another look at the progresses during the past five years. The current review provides an overview of the polar stationary phases commercially available for HILIC applications in an effort to assist scientists in selecting suitable columns. New types of stationary phase that were published in literature in the past five years are summarized and discussed. The trend in stationary phase research and development is also highlighted. Of particular interest is the experimental evidence for direct interactions of polar analytes with the ligands of the stationary phases under HILIC conditions. In addition, two different approaches have been developed to delineate the relative significance of the partitioning and adsorption mechanisms in HILIC, representing an important advancement in our understanding of the retention mechanisms in HILIC.
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Affiliation(s)
- Yong Guo
- School of Pharmacy and Health Sciences, Fairleigh Dickinson University, New Jersey, USA
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6
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Yu J, Wey M, Firooz SK, Armstrong DW. Ionizable Cyclofructan 6-Based Stationary Phases for Hydrophilic Interaction Liquid Chromatography Using Superficially Porous Particles. Chromatographia 2021. [DOI: 10.1007/s10337-021-04063-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Multiplexed small molecule impurity monitoring in antibody-based therapeutics by mixed-mode chromatography paired with charged aerosol detection. J Pharm Biomed Anal 2021; 197:113952. [PMID: 33601156 DOI: 10.1016/j.jpba.2021.113952] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/23/2021] [Accepted: 01/30/2021] [Indexed: 12/27/2022]
Abstract
With advanced genetic engineering technologies and better understanding of disease biology, antibody-based therapeutics are emerging as promising new generation biopharmaceuticals. These novel antibody formats are carefully designed to possess desired features such as enhanced selectivity. However, their high level of structural complexity with multiple components often leads to long development and complex multi-step manufacturing processes, through which a variety of potential small molecule impurities can be introduced. In this work, an in-process assay was developed in which mixed-mode chromatography coupled with charged aerosol detection was utilized for multiplexed detection of nine reagents commonly used in development and manufacturing of antibody-based therapeutics: isopropyl β-d-1-thiogalactopyranoside, methionine sulfoximine, ampicillin, guanidine, dehydroascorbic acid, glutathione, tris(2-carboxyethyl)phosphine, N-acetyl cysteine, and arginine. This method utilized a mixed-mode column with ion-exchange properties operated in the hydrophilic interaction chromatography mode. Various parameters were systematically optimized and under optimal conditions, the method demonstrated excellent specificity, sensitivity, linearity, precision, accuracy, and was successfully applied to determine residual impurities in multiple samples from antibody-derived molecules.
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8
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Jin G, Ding J, Zhou Y, Xia D, Guo Z, Liang X. Synthesis and chromatographic evaluation of pyrazinedicarboxylic anhydride bonded stationary phase. J Chromatogr A 2021; 1638:461825. [PMID: 33450715 DOI: 10.1016/j.chroma.2020.461825] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 12/11/2020] [Accepted: 12/15/2020] [Indexed: 02/02/2023]
Abstract
A silica based hydrophilic stationary phase bonding with 2,3-pyrazinedicarboxylic anhydride and amino groups was synthesized via amino-acid anhydride ring opening reaction. The bonded groups could not only provide hydrophilic interaction, but also electrostatic, π-π and hydrogen bonding interactions, etc. The results of characterization with elemental analysis and solid-state 13C cross-polarization magic-angle-spinning NMR indicated the successful preparation of amino and carboxyl bonded stationary phase named ZAC. The ζ-potential of ZAC stationary phase showed the negatively charge was dominate at pH larger than 3.5. Chromatographic evaluation revealed that ZAC stationary phase behaved well under HILIC mode. It showed different selectivity and retention compared to some typical commercial columns, and it was validated by the separation of chitooligosaccharides, flavonoid glycosides, organic acids and alkaloid samples. Based on the different selectivity between ZAC stationary phase and C18 columns, ZAC stationary phase also showed different selectivity with C18. And it was verified by the separation of Lonicerae Japonicae Flos and Menispermi Rhizoma extracts.
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Affiliation(s)
- Gaowa Jin
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; Jiangxi Chinese medicine science center of Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Nanchang 330100, China
| | - Junjie Ding
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yongzheng Zhou
- Jiangxi Chinese medicine science center of Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Nanchang 330100, China
| | - Donghai Xia
- Jiangxi Chinese medicine science center of Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Nanchang 330100, China
| | - Zhimou Guo
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; Jiangxi Chinese medicine science center of Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Nanchang 330100, China; Co-innovation Center of Neuroregeneration, Nantong University, Nantong 226019, China.
| | - Xinmiao Liang
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; Jiangxi Chinese medicine science center of Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Nanchang 330100, China; Co-innovation Center of Neuroregeneration, Nantong University, Nantong 226019, China
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9
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Mallik AK, Guragain S, Rahman MM, Takafuji M, Ihara H. L-Lysine-derived highly selective stationary phases for hydrophilic interaction chromatography: Effect of chain length on selectivity, efficiency, resolution, and asymmetry. SEPARATION SCIENCE PLUS 2019. [DOI: 10.1002/sscp.201800148] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Abul K. Mallik
- Department of Applied Chemistry and Chemical Engineering; Faculty of Engineering and Technology; University of Dhaka; Dhaka Bangladesh
| | - Sudhina Guragain
- Department of Applied Chemistry and Biochemistry; Faculty of Engineering; Kumamoto University; Japan (currently at Department of Earth and Planetary Science; Harvard University; Cambridge Massachusetts USA
| | - Mohammed Mizanur Rahman
- Department of Applied Chemistry and Chemical Engineering; Faculty of Engineering and Technology; University of Dhaka; Dhaka Bangladesh
| | - Makoto Takafuji
- Department of Applied Chemistry and Biochemistry; Faculty of Engineering; Kumamoto University; Japan (currently at Department of Earth and Planetary Science; Harvard University; Cambridge Massachusetts USA
- Kumamoto Institute for Photo-Electro Organics (Phoenics); Japan
| | - Hirotaka Ihara
- Department of Applied Chemistry and Biochemistry; Faculty of Engineering; Kumamoto University; Japan (currently at Department of Earth and Planetary Science; Harvard University; Cambridge Massachusetts USA
- Kumamoto Institute for Photo-Electro Organics (Phoenics); Japan
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10
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Salapaka A, Bonige KB, Korupolu RB, T CR, K CR, N S, Sharma HK, Ray UK. A new stability indicating reverse phase high performance liquid chromatography method for the determination of enantiomeric purity of a DPP-4 inhibitor drug linagliptin. Electrophoresis 2019; 40:1066-1073. [PMID: 30632171 DOI: 10.1002/elps.201800502] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 11/30/2018] [Accepted: 12/21/2018] [Indexed: 12/25/2022]
Abstract
A simple, sensitive, and stability indicating isocratic reverse phase high performance liquid chromatography method has been developed, optimized and validated for the separation and quantification of S-enantiomer in linagliptin (R-enantiomer) drug substance. Enantiomeric separation was achieved on a Cellulose tris(4-chloro-3-methylphenylcarbamate) stationary phase. Mobile phase consists of aqueous diammonium hydrogen phosphate buffer and acetonitrile in the ratio of 35:65 v/v. Isocratic elution was performed at a flow rate of 1.0 mL/min, the column oven temperature was set at 40°C and detection was at 226 nm. The resolution between R and S enantiomers is found to be more than 4.0. The impact of mobile phase composition, pH of buffer and temperature on the resolution has been studied. The detector response is found to be linear over the concentration range of 0.17-1.7 μg/mL. LOD and LOQ levels of S-enantiomer are found to be 0.057 and 0.172 μg/mL respectively. The recovery of S-enantiomer is 99.8% w/w. The proposed method is validated for specificity, precision, linearity, accuracy and robustness.
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Affiliation(s)
- Appalacharyulu Salapaka
- APL Research Centre-II (A Division of Aurobindo Pharma Ltd), Hyderabad, Telangana, India.,Department of Engineering Chemistry, A. U. College of Engineering, Visakhapatnam, Andhra Pradesh, India
| | - Kishore Babu Bonige
- Department of Engineering Chemistry, A. U. College of Engineering, Visakhapatnam, Andhra Pradesh, India
| | - Raghu Babu Korupolu
- Department of Engineering Chemistry, A. U. College of Engineering, Visakhapatnam, Andhra Pradesh, India
| | - Chandrasekhar Reddy T
- APL Research Centre-II (A Division of Aurobindo Pharma Ltd), Hyderabad, Telangana, India
| | - Chandrasekhar Reddy K
- APL Research Centre-II (A Division of Aurobindo Pharma Ltd), Hyderabad, Telangana, India
| | - Sreenivas N
- APL Research Centre-II (A Division of Aurobindo Pharma Ltd), Hyderabad, Telangana, India
| | - Hemant Kumar Sharma
- APL Research Centre-II (A Division of Aurobindo Pharma Ltd), Hyderabad, Telangana, India
| | - Uttam Kumar Ray
- APL Research Centre-II (A Division of Aurobindo Pharma Ltd), Hyderabad, Telangana, India
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11
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Wimalasinghe RM, Weatherly CA, Wahab MF, Thakur N, Armstrong DW. Geopolymers as a New Class of High pH Stable Supports with Different Chromatographic Selectivity. Anal Chem 2018; 90:8139-8146. [DOI: 10.1021/acs.analchem.8b01426] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Rasangi M. Wimalasinghe
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas 76019, United States
| | - Choyce A. Weatherly
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas 76019, United States
| | - M. Farooq Wahab
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas 76019, United States
| | - Nimisha Thakur
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas 76019, United States
| | - Daniel W. Armstrong
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas 76019, United States
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12
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Lin C, Fan J, Liu W, Chen X, Ruan L, Zhang W. A new single-urea-bound 3,5-dimethylphenylcarbamoylated β-cyclodextrin chiral stationary phase and its enhanced separation performance in normal-phase liquid chromatography. Electrophoresis 2017; 39:348-355. [DOI: 10.1002/elps.201700273] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Revised: 10/04/2017] [Accepted: 10/06/2017] [Indexed: 11/05/2022]
Affiliation(s)
- Chun Lin
- School of Chemistry and Environment; South China Normal University; Guangzhou P. R. China
- School of Logistics; Beijing Normal University; Zhuhai Campus, Zhuhai P. R. China
| | - Jun Fan
- School of Chemistry and Environment; South China Normal University; Guangzhou P. R. China
| | - Wenna Liu
- School of Chemistry and Environment; South China Normal University; Guangzhou P. R. China
| | - Xiaodong Chen
- School of Chemistry and Environment; South China Normal University; Guangzhou P. R. China
- Guangdong Yanjie Pharmatech Co. Ltd.; Guangzhou P. R. China
| | - Lijun Ruan
- School of Chemistry and Environment; South China Normal University; Guangzhou P. R. China
- Guangdong Yanjie Pharmatech Co. Ltd.; Guangzhou P. R. China
| | - Weiguang Zhang
- School of Chemistry and Environment; South China Normal University; Guangzhou P. R. China
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13
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14
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Peng L, Zhu M, Zhang L, Liu H, Zhang W. Preparation and evaluation of 3 m open tubular capillary columns with a zwitterionic polymeric porous layer for liquid chromatography. J Sep Sci 2016; 39:3736-3744. [DOI: 10.1002/jssc.201600535] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 07/29/2016] [Accepted: 08/01/2016] [Indexed: 12/30/2022]
Affiliation(s)
- Li Peng
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering; East China University of Science and Technology; Shanghai P. R. China
| | - Manman Zhu
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering; East China University of Science and Technology; Shanghai P. R. China
| | - Lingyi Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering; East China University of Science and Technology; Shanghai P. R. China
| | - Haiyan Liu
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering; East China University of Science and Technology; Shanghai P. R. China
| | - Weibing Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering; East China University of Science and Technology; Shanghai P. R. China
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15
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Qiao L, Shi X, Xu G. Recent advances in development and characterization of stationary phases for hydrophilic interaction chromatography. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2016.03.021] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Wimalasinghe RM, Weatherly CA, Breitbach ZS, Armstrong DW. Hydroxypropyl beta cyclodextrin bonded superficially porous particle-based HILIC stationary phases. J LIQ CHROMATOGR R T 2016. [DOI: 10.1080/10826076.2016.1187628] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Rasangi M. Wimalasinghe
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas, USA
| | - Choyce A. Weatherly
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas, USA
| | - Zachary S. Breitbach
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas, USA
| | - Daniel W. Armstrong
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas, USA
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17
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Dolzan MD, Shu Y, Smuts JP, Petersen H, Ellegaard P, Micke GA, Armstrong DW, Breitbach ZS. Enantiomeric separation of citalopram analogues by HPLC using macrocyclic glycopeptide and cyclodextrin based chiral stationary phases. J LIQ CHROMATOGR R T 2016. [DOI: 10.1080/10826076.2016.1141363] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Maressa D. Dolzan
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas, USA
- Department of Chemistry, Federal University of Santa Catarina, Florianopolis, Santa Catarina, Brazil
| | - Yang Shu
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas, USA
- College of Life and Health Sciences, Northeastern University, Shenyang, China
| | - Jonathan P. Smuts
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas, USA
| | | | | | - Gustavo A. Micke
- Department of Chemistry, Federal University of Santa Catarina, Florianopolis, Santa Catarina, Brazil
| | - Daniel W. Armstrong
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas, USA
| | - Zachary S. Breitbach
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas, USA
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18
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Bocian S, Skoczylas M, Buszewski B. Amino acids, peptides, and proteins as chemically bonded stationary phases - A review. J Sep Sci 2015; 39:83-92. [DOI: 10.1002/jssc.201500825] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 09/20/2015] [Accepted: 09/20/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Szymon Bocian
- Chair of Environmental Chemistry & Bioanalytics, Faculty of Chemistry; Nicolaus Copernicus University; Torun Poland
| | - Magdalena Skoczylas
- Chair of Environmental Chemistry & Bioanalytics, Faculty of Chemistry; Nicolaus Copernicus University; Torun Poland
| | - Bogusław Buszewski
- Chair of Environmental Chemistry & Bioanalytics, Faculty of Chemistry; Nicolaus Copernicus University; Torun Poland
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19
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Mallik AK, Qiu H, Kuwahara Y, Takafuji M, Ihara H. A remarkable enhancement of selectivity towards versatile analytes by a strategically integrated H-bonding site containing phase. Chem Commun (Camb) 2015; 51:14243-6. [PMID: 26264655 DOI: 10.1039/c5cc04966k] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A double β-alanylated L-glutamide-derived organic phase has been newly designed and synthesized in such a way that integrated H-bonding (interaction) sites make it very suitable for the separation of versatile analytes, including shape-constrained isomers, and nonpolar, polar and basic compounds. The β-alanine residues introduced into two long-chain alkyl group moieties provide ordered polar groups through H-bonding among the amide groups.
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Affiliation(s)
- Abul K Mallik
- Department of Applied Chemistry and Biochemistry, Kumamoto University, 2-39-1 Kurokami, Kumamoto 860-8555, Japan.
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20
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Mallik AK, Qiu H, Oishi T, Kuwahara Y, Takafuji M, Ihara H. Design of C18 Organic Phases with Multiple Embedded Polar Groups for Ultraversatile Applications with Ultrahigh Selectivity. Anal Chem 2015; 87:6614-21. [DOI: 10.1021/acs.analchem.5b00663] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
| | - Hongdeng Qiu
- Key
Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory
for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | | | - Yutaka Kuwahara
- Kumamoto Institute for Photo-Electro Organics (Phoenics), Kumamoto 862-0901, Japan
| | - Makoto Takafuji
- Kumamoto Institute for Photo-Electro Organics (Phoenics), Kumamoto 862-0901, Japan
| | - Hirotaka Ihara
- Kumamoto Institute for Photo-Electro Organics (Phoenics), Kumamoto 862-0901, Japan
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21
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Shu Y, Lang JC, Breitbach ZS, Qiu H, Smuts JP, Kiyono-Shimobe M, Yasuda M, Armstrong DW. Separation of therapeutic peptides with cyclofructan and glycopeptide based columns in hydrophilic interaction liquid chromatography. J Chromatogr A 2015; 1390:50-61. [PMID: 25773727 DOI: 10.1016/j.chroma.2015.02.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 02/05/2015] [Accepted: 02/07/2015] [Indexed: 10/23/2022]
Abstract
Three cyclofructan-based, two glycopeptide-based, and one zwitterionic column used in the HILIC mode were assessed within a graphical framework based on different functional characteristics contributing to selectivity. The characteristics of these six HILIC columns are put in the perspective of 33 columns evaluated previously. The isopropyl carbamate modified cyclofructan 6 (CF6) stationary phase, Larihc P, showed reduced component contributions for hydrophilicity and hydrogen bonding relative to the native cyclofructan 6 column (Frulic N). Both Frulic N and Larihc P exhibited cation exchange attributed primarily to deprotonation of residual unsubstituted silica with the greater exchange ascribed to the reduced loading of CF6 observed for Larihc P. The cyclofructan 6 column with a polymeric styrene divinylbenzene support (MCI GEL™ CRS100) showed distinct selectivities consistent with its decreased cation exchange attributable to its nonionic core. The Chirobiotic T, Chirobiotic V, and ZI-DPPS columns displayed hydrophilicity and ion exchange selectivities similar to other zwitterionic stationary phases. All of the more hydrophilic columns showed excellent separation for the four classes of therapeutic peptides investigated: microbial secondary metabolites used as immune suppressants, synthetic gonadotropin hormones, synthetic cyclic disulfide-linked hormone-regulating hormones, and non-ribosomally derived polycyclic antibiotics. Resolution provided by these columns and ZIC-HILIC is compared for each class of peptide. Frulic N is primarily suitable for use in the HILIC mode whereas Chirobiotic T, because of its increased efficiency and selectivity, can be useful in both HILIC and reverse phase modes. In some Chirobiotic T applications, addition of low levels of a strong additive (trifluoroacetic acid, formic acid, etc.) to the mobile phase can be beneficial. In these peptide analyses, a relative weakening of the often-dominant ionic interaction between analyte and residual charge on the stationary phase improved resolution and selectivity.
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Affiliation(s)
- Yang Shu
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA; College of Life and Health Sciences, Northeastern University, Shenyang 110189, China
| | - John C Lang
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA; AZYP LLC, Arlington, TX 76019, USA
| | - Zachary S Breitbach
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA
| | - Haixiao Qiu
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA
| | - Jonathan P Smuts
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA; AZYP LLC, Arlington, TX 76019, USA
| | - Mayumi Kiyono-Shimobe
- Mitsubishi Chemical Corporation, 1-1-1, Marunouchi, Chiyoda-ku, Tokyo 100-8251, Japan
| | - Mari Yasuda
- Mitsubishi Chemical Corporation, 1-1-1, Marunouchi, Chiyoda-ku, Tokyo 100-8251, Japan
| | - Daniel W Armstrong
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA; AZYP LLC, Arlington, TX 76019, USA.
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22
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Liu C, Chen W, Yuan G, Xiao Y, Crommen J, Xu S, Jiang Z. Influence of the crosslinker type on the chromatographic properties of hydrophilic sulfoalkylbetaine-type monolithic columns. J Chromatogr A 2014; 1373:73-80. [DOI: 10.1016/j.chroma.2014.11.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Revised: 11/05/2014] [Accepted: 11/05/2014] [Indexed: 11/16/2022]
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23
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Bani-Yaseen AD, Mo'ala A. Spectral, thermal, and molecular modeling studies on the encapsulation of selected sulfonamide drugs in β-cyclodextrin nano-cavity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 131:424-431. [PMID: 24835946 DOI: 10.1016/j.saa.2014.04.136] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Revised: 03/13/2014] [Accepted: 04/14/2014] [Indexed: 06/03/2023]
Abstract
In the present work the inclusion complexation of three sulfonamide (SA) drugs, namely sulfisoxazole (SSX), sulfamethizole (SMZ), and Sulfamethazine (STM) with β-cyclodextrin (β-CD) has been investigated using UV-Vis spectroscopy, DSC, (1)H NMR spectroscopy, and molecular modeling methods. The binding constant (Kb) of SA:β-CD inclusion complexation was determined via applying the modified form of Benesi-Hildebrand equation employing the changes in absorbance at λmax. Obtained results revealed that SA drugs form 1:1 inclusion complex with β-CD with Kb of 650, 1532, 714M(-1) at 25°C for SSX, SMZ, and STM, respectively. The UV-Vis absorption spectra displayed solvatochromic behavior of bathochromic shift with decreasing solvent polarity that in turn is good agreement with their behavior in the presence of β-CD in terms of environment polarity dependency. The inclusion complex formation between β-CD and tested SA drugs in liquid and solid states was confirmed by (1)H NMR and DSC, respectively. Using semi-empirical quantum chemistry methods at PM3 theoretical level, inclusion complexes' structures as well as energetic and thermodynamic parameters of encapsulation were elucidated. Obtained results revealed that the encapsulation is favorably energetic and enthalpic in nature with the inclusion of the aniline moiety through the wide rim side of β-CD nano-cavity. Further, molecular modeling revealed that β-CD encapsulation of SA drugs reduced their (EHOMO-ELUMO) gap.
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Affiliation(s)
- Abdulilah Dawoud Bani-Yaseen
- Department of Chemistry & Earth Sciences, College of Arts & Science, Qatar University, P.O. Box 2713, Doha, Qatar.
| | - Abeer Mo'ala
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Al-Munawarah, Saudi Arabia
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24
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Qiu H, Kiyono-Shimobe M, Armstrong DW. NATIVE/DERIVATIZED CYCLOFRUCTAN 6 BOUND TO RESINS VIA “CLICK” CHEMISTRY AS STATIONARY PHASES FOR ACHIRAL/CHIRAL SEPARATIONS. J LIQ CHROMATOGR R T 2014. [DOI: 10.1080/10826076.2013.830271] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Haixiao Qiu
- a Department of Chemistry and Biochemistry , The University of Texas at Arlington , Arlington , Texas , USA
- b AZYP, LLC , Arlington , Texas , USA
| | | | - Daniel W. Armstrong
- a Department of Chemistry and Biochemistry , The University of Texas at Arlington , Arlington , Texas , USA
- b AZYP, LLC , Arlington , Texas , USA
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25
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Padivitage NLT, Dissanayake MK, Armstrong DW. Separation of nucleotides by hydrophilic interaction chromatography using the FRULIC-N column. Anal Bioanal Chem 2013; 405:8837-48. [PMID: 23995506 DOI: 10.1007/s00216-013-7315-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Revised: 08/13/2013] [Accepted: 08/15/2013] [Indexed: 11/28/2022]
Abstract
A stationary phase composed of silica-bonded cyclofructan 6 (FRULIC-N) was evaluated for the separation of four cyclic nucleotides, six nucleoside monophosphates, four nucleoside diphosphates, and five nucleoside triphosphates via hydrophilic interaction chromatography (HILIC) in both isocratic and gradient conditions. The gradient conditions gave significantly better separations by narrowing peak widths. Sixteen out of nineteen nucleotides were baseline separated on the FRULIC-N column in one run. Unlike other known HILIC stationary phases, there can be dual-retention mechanisms unique to this media. Traditional hydrogen bonding/dipolar interactions can be supplemented by dynamic ion interaction effects for anionic analytes. This occurs because the FRULIC-N stationary phase is able to bind certain buffer cations. The extent of the ion interaction is tunable, in comparison to stationary phases with embedded charged groups, where the inherent ionic properties are fixed. The best mobile phase conditions were determined by varying the organic modifier (acetonitrile) content, as well as salt type/concentration and electrolyte pH. The thermodynamic characteristic of the FRULIC-N column was investigated by evaluating the column temperature effect on retention and utilizing van't Hoff plots. This study shows that there is a greater entropic contribution for the retention of nucleotide di and triphosphates, whereas there is a greater enthalphic contribution for the cyclic nucleotides with the FRULIC-N column.
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Affiliation(s)
- Nilusha L T Padivitage
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, TX, 76019, USA
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26
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Preparation of a Novel Amino-Phosphate Zwitterionic Stationary Phase for Hydrophilic Interaction Chromatography. Chromatographia 2013. [DOI: 10.1007/s10337-013-2534-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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27
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Guo J, Zhang Q, Peng Y, Liu Z, Rao L, He T, Crommen J, Sun P, Jiang Z. A facile and efficient one-step strategy for the preparation of β-cyclodextrin monoliths. J Sep Sci 2013; 36:2441-9. [DOI: 10.1002/jssc.201300374] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2013] [Revised: 05/16/2013] [Accepted: 05/16/2013] [Indexed: 12/19/2022]
Affiliation(s)
- Jialiang Guo
- College of Pharmacy; Jinan University; Guangzhou China
| | | | - Yongbo Peng
- College of Pharmacy; Jinan University; Guangzhou China
| | - Zhenghua Liu
- College of Pharmacy; Jinan University; Guangzhou China
| | - Longyi Rao
- College of Pharmacy; Jinan University; Guangzhou China
| | - Teng He
- College of Pharmacy; Jinan University; Guangzhou China
| | - Jacques Crommen
- College of Pharmacy; Jinan University; Guangzhou China
- Laboratory of Analytical Pharmaceutical Chemistry, Department of Pharmaceutical Sciences; University of Liege; Liege Belgium
| | - Pinghua Sun
- College of Pharmacy; Jinan University; Guangzhou China
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28
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Preparation, characterization, and application of a new stationary phase containing different kinds of amine groups. Anal Bioanal Chem 2013; 405:8311-8. [DOI: 10.1007/s00216-013-7243-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Revised: 06/16/2013] [Accepted: 07/10/2013] [Indexed: 12/19/2022]
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29
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Yuan G, Peng Y, Liu Z, Hong J, Xiao Y, Guo J, Smith NW, Crommen J, Jiang Z. A facile and efficient strategy to enhance hydrophilicity of zwitterionic sulfoalkylbetaine type monoliths. J Chromatogr A 2013; 1301:88-97. [DOI: 10.1016/j.chroma.2013.05.063] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Revised: 04/23/2013] [Accepted: 05/28/2013] [Indexed: 11/30/2022]
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30
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Kalíková K, Kozlík P, Gilar M, Tesařová E. Properties of two amide-based hydrophilic interaction liquid chromatography columns. J Sep Sci 2013; 36:2421-9. [DOI: 10.1002/jssc.201300232] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Revised: 05/06/2013] [Accepted: 05/09/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Květa Kalíková
- Department of Physical and Macromolecular Chemistry; Faculty of Science, Charles University in Prague; Prague Czech Republic
| | - Petr Kozlík
- Department of Analytical Chemistry, Faculty of Science; Charles University in Prague; Prague Czech Republic
| | | | - Eva Tesařová
- Department of Physical and Macromolecular Chemistry; Faculty of Science, Charles University in Prague; Prague Czech Republic
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31
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Wagdy HA, Hanafi RS, El-Nashar RM, Aboul-Enein HY. Predictability of Enantiomeric Chromatographic Behavior on Various Chiral Stationary Phases Using Typical Reversed Phase Modeling Software. Chirality 2013; 25:506-13. [DOI: 10.1002/chir.22154] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Accepted: 12/13/2012] [Indexed: 11/08/2022]
Affiliation(s)
- Hebatallah A. Wagdy
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Biotechnology; German University in Cairo; Cairo Egypt
| | - Rasha S. Hanafi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Biotechnology; German University in Cairo; Cairo Egypt
| | - Rasha M. El-Nashar
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Biotechnology; German University in Cairo; Cairo Egypt
- Chemistry Department, Faculty of Science; Cairo University; Giza Egypt
| | - Hassan Y. Aboul-Enein
- Pharmaceutical and Medicinal Chemistry, Pharmaceutical and Drug Industries Research Division; National Research Center (NRC); Cairo 12311 Egypt
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32
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Wahab MF, Ibrahim MEA, Lucy CA. Carboxylate modified porous graphitic carbon: a new class of hydrophilic interaction liquid chromatography phases. Anal Chem 2013; 85:5684-91. [PMID: 23701017 DOI: 10.1021/ac400350x] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Stationary phases for hydrophilic interaction liquid chromatography (HILIC) are predominantly based on silica and polymer supports. We present porous graphitic carbon particles with covalently attached carboxylic acid groups (carboxylate-PGC) as a new HILIC stationary phase. PGC particles were modified by adsorbing the diazonium salt of 4-aminobenzoic acid onto the PGC, followed by reduction of the adsorbed salt with sodium borohydride. The newly developed carboxylate-PGC phase exhibits different selectivity than that of 35 HPLC columns, including bare silica, zwitterionic, amine, reversed, and unmodified PGC phases. Carboxylate-PGC is stable from pH 2.0 to 12.6, yielding reproducible retention even at pH 12.6. Characterization of the new phase is presented by X-ray photoelectron spectroscopy, thermogravimetry, zeta potentials, and elemental analysis. The chromatographic performance of carboxylate-PGC as a HILIC phase is illustrated by separations of carboxylic acids, nucleotides, phenols, and amino acids.
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Affiliation(s)
- M Farooq Wahab
- Department of Chemistry, University of Alberta, Gunning/Lemieux Chemistry Centre, Edmonton, Alberta T6G 2G2, Canada
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33
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Thermodynamic studies of a zwitterionic stationary phase in hydrophilic interaction liquid chromatography. J Chromatogr A 2013; 1272:81-9. [DOI: 10.1016/j.chroma.2012.11.071] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Revised: 11/07/2012] [Accepted: 11/25/2012] [Indexed: 11/21/2022]
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34
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Xiao Y, Ng SC, Tan TTY, Wang Y. Recent development of cyclodextrin chiral stationary phases and their applications in chromatography. J Chromatogr A 2012; 1269:52-68. [DOI: 10.1016/j.chroma.2012.08.049] [Citation(s) in RCA: 157] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2012] [Revised: 07/28/2012] [Accepted: 08/14/2012] [Indexed: 01/13/2023]
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35
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Kozlík P, Šímová V, Kalíková K, Bosáková Z, Armstrong DW, Tesařová E. Effect of silica gel modification with cyclofructans on properties of hydrophilic interaction liquid chromatography stationary phases. J Chromatogr A 2012; 1257:58-65. [DOI: 10.1016/j.chroma.2012.08.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2012] [Revised: 07/25/2012] [Accepted: 08/01/2012] [Indexed: 11/30/2022]
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36
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Causon TJ, Cortes HJ, Shellie RA, Hilder EF. Temperature Pulsing for Controlling Chromatographic Resolution in Capillary Liquid Chromatography. Anal Chem 2012; 84:3362-8. [DOI: 10.1021/ac300161b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tim J. Causon
- Australian
Centre for Research
on Separation Science, School of Chemistry, University of Tasmania, Private Bag 75, Hobart, Tasmania, Australia,
7001
| | - Hernan J. Cortes
- Australian
Centre for Research
on Separation Science, School of Chemistry, University of Tasmania, Private Bag 75, Hobart, Tasmania, Australia,
7001
- HJ Cortes Consulting LLC, Midland, Michigan 48642, United States
| | - Robert A. Shellie
- Australian
Centre for Research
on Separation Science, School of Chemistry, University of Tasmania, Private Bag 75, Hobart, Tasmania, Australia,
7001
| | - Emily F. Hilder
- Australian
Centre for Research
on Separation Science, School of Chemistry, University of Tasmania, Private Bag 75, Hobart, Tasmania, Australia,
7001
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37
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Lin H, Ou J, Zhang Z, Dong J, Wu M, Zou H. Facile Preparation of Zwitterionic Organic-Silica Hybrid Monolithic Capillary Column with an Improved “One-Pot” Approach for Hydrophilic-Interaction Liquid Chromatography (HILIC). Anal Chem 2012; 84:2721-8. [DOI: 10.1021/ac3001429] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Hui Lin
- CAS Key Laboratory of Separation Science for Analytical Chemistry, National Chromatographic R & A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian 116023, China
- Graduate School of Chinese Academy of Sciences, Beijing 100049, China
| | - Junjie Ou
- CAS Key Laboratory of Separation Science for Analytical Chemistry, National Chromatographic R & A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian 116023, China
| | - Zhenbin Zhang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, National Chromatographic R & A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian 116023, China
- Graduate School of Chinese Academy of Sciences, Beijing 100049, China
| | - Jing Dong
- CAS Key Laboratory of Separation Science for Analytical Chemistry, National Chromatographic R & A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian 116023, China
| | - Minghuo Wu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, National Chromatographic R & A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian 116023, China
- College of Environmental and Chemical
Engineering, Nanchang Hangkong University, Nanchang 330063, China
| | - Hanfa Zou
- CAS Key Laboratory of Separation Science for Analytical Chemistry, National Chromatographic R & A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian 116023, China
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38
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Qiu H, Wanigasekara E, Zhang Y, Tran T, Armstrong DW. Development and evaluation of new zwitterionic hydrophilic interaction liquid chromatography stationary phases based on 3-P,P-diphenylphosphonium-propylsulfonate. J Chromatogr A 2011; 1218:8075-82. [PMID: 21963182 DOI: 10.1016/j.chroma.2011.09.016] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2011] [Revised: 09/02/2011] [Accepted: 09/05/2011] [Indexed: 10/17/2022]
Abstract
New zwitterionic stationary phases were synthesized by covalently bonding 3-P,P-diphenylphosphonium-propylsulfonate to silica gel. The resulting materials possess both a negatively charged sulfonate group and a positively charged quaternary phosphonium group, which means that there is no net charge over a wide pH range. The retention mechanism and chromatographic behavior of polar solutes under HILIC conditions were studied on these zwitterionic phases. Compared to the commercial ZIC-HILIC column and a bare silica gel stationary phase, the newly synthesized zwitterionic stationary phases provided greater retention, higher peak efficiency and better peak symmetry in the HILIC mode. The analytes examined included: β-blockers, nucleic acid bases and nucleosides, salicylic acid and its analogues, and water soluble vitamins. Factors, such as the type of organic modifiers, solvent composition, pH and the buffer concentration of the mobile phase, have been considered as potential variables for controlling the chromatographic retention of polar analytes.
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Affiliation(s)
- Haixiao Qiu
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA
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39
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Guo Y, Gaiki S. Retention and selectivity of stationary phases for hydrophilic interaction chromatography. J Chromatogr A 2011; 1218:5920-38. [DOI: 10.1016/j.chroma.2011.06.052] [Citation(s) in RCA: 245] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2010] [Revised: 06/13/2011] [Accepted: 06/14/2011] [Indexed: 11/17/2022]
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40
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Padivitage NLT, Armstrong DW. Sulfonated cyclofructan 6 based stationary phase for hydrophilic interaction chromatography. J Sep Sci 2011; 34:1636-47. [DOI: 10.1002/jssc.201100121] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2011] [Revised: 04/19/2011] [Accepted: 04/20/2011] [Indexed: 11/09/2022]
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41
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Preparation of cyclodextrin chiral stationary phases by organic soluble catalytic 'click' chemistry. Nat Protoc 2011; 6:935-42. [DOI: 10.1038/nprot.2011.340] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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42
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Cyclofructan 6 based stationary phases for hydrophilic interaction liquid chromatography. J Chromatogr A 2011; 1218:270-9. [DOI: 10.1016/j.chroma.2010.11.027] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2010] [Revised: 11/09/2010] [Accepted: 11/12/2010] [Indexed: 11/18/2022]
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43
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Breitbach ZS, Feng Q, Koswatta PB, Dodbiba E, Lovely CJ, Armstrong DW. The enantiomeric separation of 4,5-disubstituted imidazoles by HPLC and CE using cyclodextrin-based chiral selectors. Supramol Chem 2010. [DOI: 10.1080/10610278.2010.506545] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Zachary S. Breitbach
- a Department of Chemistry and Biochemistry , The University of Texas at Arlington , Arlington , Texas , 76019 , USA
| | - Qing Feng
- a Department of Chemistry and Biochemistry , The University of Texas at Arlington , Arlington , Texas , 76019 , USA
| | - Panduka B. Koswatta
- a Department of Chemistry and Biochemistry , The University of Texas at Arlington , Arlington , Texas , 76019 , USA
| | - Edra Dodbiba
- a Department of Chemistry and Biochemistry , The University of Texas at Arlington , Arlington , Texas , 76019 , USA
| | - Carl J. Lovely
- a Department of Chemistry and Biochemistry , The University of Texas at Arlington , Arlington , Texas , 76019 , USA
| | - Daniel W. Armstrong
- a Department of Chemistry and Biochemistry , The University of Texas at Arlington , Arlington , Texas , 76019 , USA
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44
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Chiral analysis of pharmaceuticals by capillary electrophoresis using antibiotics as chiral selectors. J Pharm Biomed Anal 2010; 53:1170-9. [PMID: 20675089 DOI: 10.1016/j.jpba.2010.07.005] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2010] [Revised: 06/29/2010] [Accepted: 07/03/2010] [Indexed: 11/20/2022]
Abstract
The review summarizes the use of the chiral capillary electrophoresis (CE) with different class of antibiotics as chiral selectors in the pharmaceutical field. Basic factors influencing the enantioseparation are shortly discussed. Non-aqueous capillary electrophoresis is also included as well as the coupling of CE to MS. The selection of a chiral selector according the ionic state and structure of the analyte is described. Summary of pharmaceutical applications of chiral CE is given.
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Singer D, Kuhlmann J, Muschket M, Hoffmann R. Separation of Multiphosphorylated Peptide Isomers by Hydrophilic Interaction Chromatography on an Aminopropyl Phase. Anal Chem 2010; 82:6409-14. [DOI: 10.1021/ac100473k] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- David Singer
- Institute of Bioanalytical Chemistry, Center for Biotechnology and Biomedicine (BBZ), Faculty of Chemistry and Mineralogy, Universität Leipzig, 04103 Leipzig, Germany
| | - Julia Kuhlmann
- Institute of Bioanalytical Chemistry, Center for Biotechnology and Biomedicine (BBZ), Faculty of Chemistry and Mineralogy, Universität Leipzig, 04103 Leipzig, Germany
| | - Matthias Muschket
- Institute of Bioanalytical Chemistry, Center for Biotechnology and Biomedicine (BBZ), Faculty of Chemistry and Mineralogy, Universität Leipzig, 04103 Leipzig, Germany
| | - Ralf Hoffmann
- Institute of Bioanalytical Chemistry, Center for Biotechnology and Biomedicine (BBZ), Faculty of Chemistry and Mineralogy, Universität Leipzig, 04103 Leipzig, Germany
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Pazourek J. Monitoring of mutarotation of monosaccharides by hydrophilic interaction chromatography. J Sep Sci 2010; 33:974-81. [DOI: 10.1002/jssc.200900880] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Nguyen HP, Yang SH, Wigginton JG, Simpkins JW, Schug KA. Retention behavior of estrogen metabolites on hydrophilic interaction chromatography stationary phases. J Sep Sci 2010; 33:793-802. [DOI: 10.1002/jssc.200900680] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Wang C, Breitbach ZS, Armstrong DW. Separations of Cycloinulooligosaccharides via Hydrophilic Interaction Chromatography (HILIC) and Ligand-Exchange Chromatography. SEP SCI TECHNOL 2010. [DOI: 10.1080/01496390903529885] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Jin G, Dai Y, Feng J, Qin X, Xue X, Zhang F, Liang X. 2-D RP/RPLC method to separate components in Fructus schisandrae chinensis. J Sep Sci 2010; 33:564-9. [DOI: 10.1002/jssc.200900563] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Lämmerhofer M. Chiral recognition by enantioselective liquid chromatography: mechanisms and modern chiral stationary phases. J Chromatogr A 2009; 1217:814-56. [PMID: 19906381 DOI: 10.1016/j.chroma.2009.10.022] [Citation(s) in RCA: 516] [Impact Index Per Article: 34.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2009] [Revised: 09/30/2009] [Accepted: 10/07/2009] [Indexed: 11/19/2022]
Abstract
An overview of the state-of-the-art in LC enantiomer separation is presented. This tutorial review is mainly focused on mechanisms of chiral recognition and enantiomer distinction of popular chiral selectors and corresponding chiral stationary phases including discussions of thermodynamics, additivity principle of binding increments, site-selective thermodynamics, extrathermodynamic approaches, methods employed for the investigation of dominating intermolecular interactions and complex structures such as spectroscopic methods (IR, NMR), X-ray diffraction and computational methods. Modern chiral stationary phases are discussed with particular focus on those that are commercially available and broadly used. It is attempted to provide the reader with vivid images of molecular recognition mechanisms of selected chiral selector-selectand pairs on basis of solid-state X-ray crystal structures and simulated computer models, respectively. Such snapshot images illustrated in this communication unfortunately cannot account for the molecular dynamics of the real world, but are supposed to be helpful for the understanding. The exploding number of papers about applications of various chiral stationary phases in numerous fields of enantiomer separations is not covered systematically.
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Affiliation(s)
- Michael Lämmerhofer
- Christian Doppler Laboratory for Molecular Recognition Materials, Department of Analytical Chemistry and Food Chemistry, University of Vienna, Waehringer Strasse 38, A-1090 Vienna, Austria.
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