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Xie W, Li H, Sun Y, Li W, Yi F, Xia L, Lei F. Separating and purifying of Panax notoginseng saponins using a rosin-based polymer-bonded with silica as a high-performance liquid chromatography stationary phase. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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2
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Zhou Y, Liang Q, Zhang Z, Wang Z, Huang M. Chiral separations with crosslinked cellulose derivatives attached onto hybrid silica monolith particles via the thiol-ene click reaction. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:2727-2734. [PMID: 32930304 DOI: 10.1039/d0ay00772b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A hybrid silica monolith containing vinyl groups was synthesized by a sol-gel method, and then ground and treated, yielding silica particles with a 3-5 μm particle size and a 10-20 nm pore size. Cellulose derivatives containing 3,5-dimethylphenylcarbamate groups and methacrylate groups regioselectively were then immobilized onto the surface of the above particles by the thiol-ene click reaction using an alkanedithiol as the crosslinking agent, thus forming a solvent-resisting crosslinked network structure attached onto the surface of the particles. The immobilization degree was more than 80%, and the back pressure of the chiral stationary phase (CSP) packed column was relatively low and was maintained at around 3.0 MPa. The as-prepared CSPs were shown to be able to effectively separate various enantiomers with different mobile phases.
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Affiliation(s)
- Yuhong Zhou
- College of Science, University of Shanghai for Science and Technology, Shanghai, 200093, China.
| | - Qian Liang
- College of Science, University of Shanghai for Science and Technology, Shanghai, 200093, China.
| | - Zhilun Zhang
- College of Science, University of Shanghai for Science and Technology, Shanghai, 200093, China.
| | - Zhaodi Wang
- College of Science, University of Shanghai for Science and Technology, Shanghai, 200093, China.
| | - Mingxian Huang
- College of Science, University of Shanghai for Science and Technology, Shanghai, 200093, China.
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3
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Sun Y, Li P, Wang T, Qin L, Cheng G, Shen L, Yao X, Wei S, Jiang J, Lei F. Alkaloid purification using rosin-based polymer-bonded silica stationary phase in HPLC. J Sep Sci 2019; 42:3646-3652. [PMID: 31613051 DOI: 10.1002/jssc.201900835] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 09/21/2019] [Accepted: 10/10/2019] [Indexed: 01/25/2023]
Abstract
Alkaloids are important natural products that exhibit a wide spectrum of pharmacological activities. To efficiently separate and purify them, a rosin-based polymer-bonded silica stationary phase in high-performance liquid chromatography was synthesized via the surface radical polymerization of ethylene glycol maleic rosinate acrylate and methacrylic acid onto functionalized silica. The stationary phases, columns, optimization of chromatographic conditions for alkaloids, and thermodynamic behavior of the analytes on the column were fully studied. Under the optimized conditions, the prepared column efficiently purified natural camptothecine, caffeine, and evodiamine with the corresponding purities of 92, 96, and 97%. With this work, we have developed an efficient approach to isolate alkaloids and promoted the research on rosin-based materials in biomedicine and analytical chemistry.
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Affiliation(s)
- Yao Sun
- School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Guangxi Key Laboratory of Chemistry and Engineering of Forests Products, Nanning, P. R. China
| | - Pengfei Li
- School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Guangxi Key Laboratory of Chemistry and Engineering of Forests Products, Nanning, P. R. China
| | - Ting Wang
- School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Guangxi Key Laboratory of Chemistry and Engineering of Forests Products, Nanning, P. R. China
| | - Liting Qin
- School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Guangxi Key Laboratory of Chemistry and Engineering of Forests Products, Nanning, P. R. China
| | - Gege Cheng
- School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Guangxi Key Laboratory of Chemistry and Engineering of Forests Products, Nanning, P. R. China
| | - Liqun Shen
- School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Guangxi Key Laboratory of Chemistry and Engineering of Forests Products, Nanning, P. R. China
| | - Xingdong Yao
- School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Guangxi Key Laboratory of Chemistry and Engineering of Forests Products, Nanning, P. R. China
| | - Shaoping Wei
- Guangxi Research Institute of Chemical Industry Co. Ltd., Nanning, P. R. China
| | - Jianxin Jiang
- School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Guangxi Key Laboratory of Chemistry and Engineering of Forests Products, Nanning, P. R. China
| | - Fuhou Lei
- School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Guangxi Key Laboratory of Chemistry and Engineering of Forests Products, Nanning, P. R. China
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4
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Padró JM, Keunchkarian S. State-of-the-art and recent developments of immobilized polysaccharide-based chiral stationary phases for enantioseparations by high-performance liquid chromatography (2013–2017). Microchem J 2018. [DOI: 10.1016/j.microc.2018.04.017] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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5
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Han M, Jin X, Yang H, Liu X, Liu Y, Ji S. Controlled synthesis, immobilization and chiral recognition of carboxylic acid functionalized cellulose tris(3,5-dimethylphenylcarbamate). Carbohydr Polym 2017; 172:223-229. [DOI: 10.1016/j.carbpol.2017.05.049] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 05/16/2017] [Accepted: 05/17/2017] [Indexed: 11/17/2022]
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6
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Vargas-Caporali J, Juaristi E. Fundamental Developments of Chiral Phase Chromatography in Connection with Enantioselective Synthesis of β-Amino Acids. Isr J Chem 2017. [DOI: 10.1002/ijch.201700011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Jorge Vargas-Caporali
- Departamento de Química; Centro de Investigación y de Estudios Avanzados, Instituto Politécnico Nacional Avenida IPN No. 2508; 07360 Ciudad de México México
| | - Eusebio Juaristi
- Departamento de Química; Centro de Investigación y de Estudios Avanzados, Instituto Politécnico Nacional Avenida IPN No. 2508; 07360 Ciudad de México México
- El Colegio Nacional; Luis González Obregón No. 23, Centro Histórico 06020 Ciudad de México México
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7
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Wang S, Li H, Guan X, Cheng T, Zhang H. Silica – Boronate affinity material for quick enrichment of intracellular nucleosides. Talanta 2017; 166:148-153. [DOI: 10.1016/j.talanta.2017.01.048] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Revised: 01/10/2017] [Accepted: 01/16/2017] [Indexed: 01/25/2023]
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8
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Li H, Cheng T, Wang S, Zhu X, Zhang H. High-efficiency extraction of nucleosides based on the combination of self-assembly ionic liquid layer and boronic acid-functionalized attapulgite. Talanta 2016; 153:71-8. [DOI: 10.1016/j.talanta.2016.02.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2015] [Revised: 01/31/2016] [Accepted: 02/01/2016] [Indexed: 01/20/2023]
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9
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Li H, Zhu S, Cheng T, Wang S, Zhu B, Liu X, Zhang H. Binary boronic acid-functionalized attapulgite with high adsorption capacity for selective capture of nucleosides at acidic pH values. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1808-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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10
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Jeong D, Kim H, Dindulkar SD, Lee JY, Jung S. Preparation of a Novel Chiral Stationary Phase Containing Rhizobial Cyclic β-(1 → 2) Glucans for the Chiral Separation of Some Flavonoids. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10445] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Daham Jeong
- Department of Bioscience and Biotechnology; Bio/Molecular Informatics Center & Center for Biotechnology Research in UBITA (CBRU), Konkuk University; Seoul 143-701 South Korea
| | - Hwanhee Kim
- Department of Bioscience and Biotechnology; Bio/Molecular Informatics Center & Center for Biotechnology Research in UBITA (CBRU), Konkuk University; Seoul 143-701 South Korea
| | - Someshwar D Dindulkar
- Department of Bioscience and Biotechnology; Bio/Molecular Informatics Center & Center for Biotechnology Research in UBITA (CBRU), Konkuk University; Seoul 143-701 South Korea
| | - Jae Yung Lee
- Department of Biological Science; Mokpo National University; Jeonnam 534-729 Korea
| | - Seunho Jung
- Department of Bioscience and Biotechnology; Bio/Molecular Informatics Center & Center for Biotechnology Research in UBITA (CBRU), Konkuk University; Seoul 143-701 South Korea
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11
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De Klerck K, Vander Heyden Y, Mangelings D. Pharmaceutical-enantiomers resolution using immobilized polysaccharide-based chiral stationary phases in supercritical fluid chromatography. J Chromatogr A 2014; 1328:85-97. [DOI: 10.1016/j.chroma.2013.12.044] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Revised: 12/10/2013] [Accepted: 12/16/2013] [Indexed: 10/25/2022]
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12
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Efficient immobilization of polysaccharide derivatives as chiral stationary phases via copolymerization with vinyl monomers. Macromol Res 2013. [DOI: 10.1007/bf03218764] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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13
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Complementary enantiorecognition patterns and specific method optimization aspects on immobilized polysaccharide-derived chiral stationary phases. J Chromatogr A 2012; 1269:178-88. [DOI: 10.1016/j.chroma.2012.09.071] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Revised: 09/06/2012] [Accepted: 09/12/2012] [Indexed: 11/23/2022]
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14
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Wang RQ, Ong TT, Tang W, Ng SC. Cationic cyclodextrins chemically-bonded chiral stationary phases for high-performance liquid chromatography. Anal Chim Acta 2012; 718:121-9. [PMID: 22305907 DOI: 10.1016/j.aca.2011.12.063] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Revised: 12/13/2011] [Accepted: 12/24/2011] [Indexed: 10/14/2022]
Abstract
Two covalently bonded cationic β-CD chiral stationary phases (CSPs) prepared by graft polymerization of 6(A)-(3-vinylimidazolium)-6-deoxyperphenylcarbamate-β-cyclodextrin chloride or 6(A)-(N,N-allylmethylammonium)-6-deoxyperphenylcarbamoyl-β-cyclodextrin chloride onto silica gel were successfully applied in high-performance liquid chromatography (HPLC). Their enantioseparation capability was examined with 12 racemic pharmaceuticals and 6 carboxylic acids. The results indicated that imidazolium-containing β-CD CSP afforded more favorable enantioseparations than that containing ammonium moiety under normal-phase HPLC. The cationic moiety on β-CD CSPs could form strong hydrogen bonding with analytes in normal-phase liquid chromatography (NPLC) to enhance the analytes' retention and enantioseparations. In reversed-phase liquid chromatography (RPLC), the analytes exhibited their maximum retention when the pH of mobile phase was close to their pK(a) value. Inclusion complexation with CD cavity and columbic/ionic interactions with cationic substituent on the CD rim would afford accentuated retention and enantioseparations of the analytes.
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Affiliation(s)
- Ren-Qi Wang
- Division of Chemical and Biomolecular Engineering, College of Engineering, Nanyang Technological University, Singapore, Singapore
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15
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Wang RQ, Ong TT, Ng SC. Chemically bonded cationic β-cyclodextrin derivatives and their applications in supercritical fluid chromatography. J Chromatogr A 2011; 1224:97-103. [PMID: 22236564 DOI: 10.1016/j.chroma.2011.12.053] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Revised: 12/13/2011] [Accepted: 12/15/2011] [Indexed: 10/14/2022]
Abstract
Cationic β-cyclodextrin (CD) perphenylcarbamoylated derivatives were chemically bonded onto vinylized silica using a radical co-polymerization reaction. The derived materials were used as chiral stationary phases (CSP) in supercritical fluid chromatography (SFC). Enantioseparations were successfully demonstrated on 14 racemates encompassing flavanones, thiazides and amino acid derivatives. The electrostatic force between the analytes and the cationic moiety on β-CD derivative was found to be important for retention and enantioseparation of the racemates. Aromatic cationic moiety on β-CD enabled better enantioseparations than aliphatic cationic moiety. It was also found that the presence of acid additives would result in lower retention of the analytes but often assist the chiral resolutions.
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Affiliation(s)
- Ren-Qi Wang
- Division of Chemical and Biomolecular Engineering, College of Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore
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16
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Shamsipur M, Abdollahpour A, Heydari R. DEVELOPMENT AND VALIDATION OF A NEW HIGH PERFORMANCE LIQUID CHROMATOGRAPHIC METHOD FOR ENANTIOSEPARATION OF DORZOLAMIDE HYDROCHLORIDE ON A COATED CELLULOSE PHENYLCARBAMATE CHIRAL STATIONARY PHASE. J LIQ CHROMATOGR R T 2011. [DOI: 10.1080/10826076.2011.570843] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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17
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Tang S, Liu G, Li X, Jin Z, Wang F, Pan F, Okamoto Y. Improved preparation of chiral stationary phases via immobilization of polysaccharide derivative-based selectors using diisocyanates. J Sep Sci 2011; 34:1763-71. [DOI: 10.1002/jssc.201100260] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2011] [Revised: 04/29/2011] [Accepted: 04/29/2011] [Indexed: 11/08/2022]
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18
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Zhang Z, Wu M, Wu R, Dong J, Ou J, Zou H. Preparation of perphenylcarbamoylated β-cyclodextrin-silica hybrid monolithic column with "one-pot" approach for enantioseparation by capillary liquid chromatography. Anal Chem 2011; 83:3616-22. [PMID: 21456603 DOI: 10.1021/ac200414r] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Perphenylcarbamoylated β-cyclodextrin-silica (Ph-β-CD-silica) hybrid monolithic columns for enantioseparation in capillary liquid chromatography (cLC) have been prepared by a "one-pot" approach via the polycondensation of alkoxysilanes and in situ copolymerization of mono (6(A)-N-allylamino-6(A)-deoxy)-Ph-β-CD and vinyl group on the precondensed siloxanes. The morphologies of the Ph-β-CD-silica hybrid monolithic columns were characterized by optical microscopy and scanning electron microscopy (SEM), showing the uniform monolithic matrixes tightly bonded onto the capillary wall. The content of Ph-β-CD incorporated in monolithic matrix by the "one-pot" approach was ca. 2.9 times higher than that by postmodification method. The permeability of the Ph-β-CD-silica chiral hybrid monolithic column was 3.63 × 10(-14) m(2), and the minimum plate height was 12 μm corresponding to 83,300 theoretical plates/meter. Enantioseparations of 13 racemates were achieved by the Ph-β-CD-silica hybrid monolithic column. In this work, since the prepolymerization system mainly consisted of organic solvent (methanol (MeOH), N,N-dimethylformamide (DMF)), the limitation and difficulty of the use of water insoluble organic monomers in the previously reported "one-pot" method was circumvented. Therefore, various β-CD derivatives as well as other hydrophobic monomers could thus be used to prepare organic-silica hybrid monolithic columns with the "one-pot" process.
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Affiliation(s)
- Zhenbin Zhang
- Key Laboratory of Separation Science for Analytical Chemistry, National Chromatographic R & A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, China
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19
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Li Y, Li J, Chen T, Liu X, Zhang H. Covalently bonded polysaccharide-modified stationary phase for per aqueous liquid chromatography and hydrophilic interaction chromatography. J Chromatogr A 2011; 1218:1503-8. [DOI: 10.1016/j.chroma.2011.01.044] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2010] [Revised: 01/07/2011] [Accepted: 01/15/2011] [Indexed: 11/29/2022]
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20
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Development of silica-based stationary phases for high-performance liquid chromatography. Anal Bioanal Chem 2011; 399:3307-22. [DOI: 10.1007/s00216-010-4611-x] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2010] [Revised: 12/10/2010] [Accepted: 12/13/2010] [Indexed: 10/18/2022]
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21
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Zhao C, Zhao T, Liu X, Zhang H. A novel molecularly imprinted polymer for simultaneous extraction and determination of sudan dyes by on-line solid phase extraction and high performance liquid chromatography. J Chromatogr A 2010; 1217:6995-7002. [DOI: 10.1016/j.chroma.2010.09.005] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2010] [Revised: 08/27/2010] [Accepted: 09/02/2010] [Indexed: 11/28/2022]
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22
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Lao W, Gan J. Characterization of warfarin unusual peak profiles on oligoproline chiral high performance liquid chromatography columns. J Chromatogr A 2010; 1217:6545-54. [DOI: 10.1016/j.chroma.2010.08.066] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2010] [Revised: 06/25/2010] [Accepted: 08/24/2010] [Indexed: 11/29/2022]
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23
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Tang S, Ikai T, Tsuji M, Okamoto Y. Immobilization and chiral recognition of 3,5-dimethylphenylcarbamates of cellulose and amylose bearing 4-(trimethoxysilyl)phenylcarbamate groups. Chirality 2010; 22:165-72. [DOI: 10.1002/chir.20722] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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24
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Zhao L, Ming Y, Zhang H, Jiang S. Enantioselective separation of indole derivatives by liquid chromatography using immobilized cellulose (3,5-dimethylphenylcarbamate) chiral stationary phase. JOURNAL OF ANALYTICAL CHEMISTRY 2009. [DOI: 10.1134/s106193480908005x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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25
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Immobilized-type chiral packing materials for HPLC based on polysaccharide derivatives☆. J Chromatogr B Analyt Technol Biomed Life Sci 2008; 875:2-11. [DOI: 10.1016/j.jchromb.2008.04.047] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2008] [Revised: 04/23/2008] [Accepted: 04/24/2008] [Indexed: 11/17/2022]
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26
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Preparation of Cucurbituril Anchored Silica Gel by Cross Polymerization and Its Chromatographic Applications. B KOREAN CHEM SOC 2008. [DOI: 10.5012/bkcs.2008.29.10.1941] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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27
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Zhang T, Nguyen D, Franco P. Enantiomer resolution screening strategy using multiple immobilised polysaccharide-based chiral stationary phases. J Chromatogr A 2008; 1191:214-22. [DOI: 10.1016/j.chroma.2007.12.026] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2007] [Revised: 12/06/2007] [Accepted: 12/10/2007] [Indexed: 10/22/2022]
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28
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Liu Y, Zou H. High-performance liquid chromatographic evaluation of a coated cellulose tris(3,5-dimethylphenylcarbamate) chiral stationary phase having a small-pore silica support. J Chromatogr A 2008; 1178:118-25. [DOI: 10.1016/j.chroma.2007.11.055] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2007] [Revised: 11/18/2007] [Accepted: 11/21/2007] [Indexed: 11/28/2022]
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29
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Titanized or Zirconized Porous Silica Modified with a Cellulose Derivative as New Chiral Stationary Phases. B KOREAN CHEM SOC 2007. [DOI: 10.5012/bkcs.2007.28.6.999] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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30
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Polysaccharide derivatives as useful chiral stationary phases in high-performance liquid chromatography. PURE APPL CHEM 2007. [DOI: 10.1351/pac200779091561] [Citation(s) in RCA: 94] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The chromatographic separation of enantiomers using chiral stationary phases (CSPs) has significantly advanced. The esters and carbamates of polysaccharides coated on silica gel have been extensively studied and widely used as CSPs for high-performance liquid chromatography (HPLC). In order to overcome the strict solvent limitation on these coated CSPs, the preparation of a new generation of CSPs consisting of immobilized polysaccharide derivatives has become increasingly important. The universal solvent compatibility of the new CSPs provides flexibility in both analytical and preparative chromatographies.
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31
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Su X, Qin F, Kong L, Ou J, Xie C, Zou H. Characterization of enantioselective binding of racemic natural tetrahydropalmatine to DNA by chromatographic methods. J Chromatogr B Analyt Technol Biomed Life Sci 2007; 845:174-9. [PMID: 16931189 DOI: 10.1016/j.jchromb.2006.07.050] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2006] [Revised: 07/17/2006] [Accepted: 07/26/2006] [Indexed: 11/19/2022]
Abstract
A racemate from natural product, tetrahydropalmatine (THP), was characterized on its enantioselective binding to DNA by the chromatographic methods including microdialysis/HPLC, centrifugal ultrifiltration/HPLC and immobilized DNA affinity chromatography. It was found that its (+)-enantiomer was preferential to binding on B-form duplex DNA including calf thymus DNA, AT and GC sequence oligo DNA, as well as triplex oligo DNA. The binding constants of the THP enantiomers to ct-DNA were determined with the methods of microdialysis/HPLC and frontal affinity chromatography. In addition, the DNA structural preference of either enantiomer was evaluated with the chromatographic methods.
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Affiliation(s)
- Xingye Su
- National Chromatographic R. & A. Centre, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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32
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Ming Y, Zhao L, Zhang H, Shi Y, Li Y. Investigation of Enantiomer Separation by LC with a New Bonded Cellulose 3,5-Dimethylphenylcarbamate Chiral Stationary Phase. Chromatographia 2006. [DOI: 10.1365/s10337-006-0018-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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33
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Chen XM, Yamamoto C, Okamoto Y. One-pot synthesis of polysaccharide 3,5-dimethylphenylcarbamates having a random vinyl group for immobilization on silica gel as chiral stationary phases. J Sep Sci 2006; 29:1432-9. [PMID: 16894788 DOI: 10.1002/jssc.200600006] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Different kinds of vinyl groups were randomly introduced onto the glucose units of cellulose 3,5-dimethylphenylcarbamates by a one-pot method using the bifunctional reagents dec-1-ene-10-isocyanate, 2-isocyanatoethyl methacrylate, and methacryloyl chloride. The chiral recognition properties of the prepared derivatives were then evaluated by coating and immobilizing them on silica gel as HPLC packing material. Immobilization was carried out by radical copolymerization with a vinyl comonomer, 1,5-hexadiene, in toluene at 80 degrees C. The effects of the structures and content of the vinyl groups on the immobilization and on enantioseparations were investigated. This one-pot method was also extended to the synthesis of amylose 3,5-dimethylphenylcarbamates having a random vinyl group. Comparisons of the chiral resolution powers of our laboratory-made packing materials and the newly commercialized Chiralpak IA with immobilized amylose 3,5-dimethylphenylcarbamate and Chiralpak IB with immobilized cellulose 3,5-dimethylphenylcarbamate are discussed.
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Affiliation(s)
- Xiao-Ming Chen
- EcoTopia Science Institute, Nagoya University, Nagoya, Japan
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Ali I, Aboul-Enein HY. Impact of immobilized polysaccharide chiral stationary phases on enantiomeric separations. J Sep Sci 2006; 29:762-9. [PMID: 16830488 DOI: 10.1002/jssc.200500372] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Immobilized polysaccharide-based chiral stationary phases (CSPs) are gaining importance in the resolution of racemic compounds due to their stable nature on working with normal solvents and those prohibited for use with coated phases (tetrahydrofuran, chloroform, dichloromethane, acetone, 1,4-dioxane, ethyl acetate, and certain other ethers). This review discusses the use of immobilized polysaccharide CSPs in the chiral resolution of various racemates by liquid chromatography. The discussion includes immobilization methodologies, enantioselectivities, efficiencies, and a comparison of chiral recognition capabilities of coated vs. immobilized CSPs. Some applications of immobilized CSPs to the chiral resolution of racemic compounds are also presented.
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Affiliation(s)
- Imran Ali
- National Institute of Hydrology, Roorkee, India
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Chen XM, Yamamoto C, Okamoto Y. Influence of vinyl monomers and temperature on immobilization of cellulose 3,5-dimethylphenylcarbamate onto silica gel as chiral stationary phases for high-performance liquid chromatography. J Chromatogr A 2006; 1104:62-8. [PMID: 16359692 DOI: 10.1016/j.chroma.2005.11.044] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2005] [Revised: 11/11/2005] [Accepted: 11/14/2005] [Indexed: 10/25/2022]
Abstract
Cellulose 3,5-dimethylphenylcarbamates bearing a low content of a vinyl group at the 6-position on the glucose units were synthesized by a previously developed regioselective method and chemically immobilized onto a vinylized silica gel as chiral stationary phases (CSPs) for high-performance liquid chromatography (HPLC). The immobilization of the derivatives was performed through a radical polymerization reaction with AIBN as the initiator in the presence of toluene. The effects of vinyl monomers, such as isoprene, 2,3-dimethyl-1,3-butadiene (DMBD), ethylene glycol dimethacrylate (EDMA) and 1,5-hexadiene, on the immobilization and enantioselectivities of the derivatives were investigated. The effect of the temperature used for the radical polymerization reaction on the immobilization was also examined. In addition, the direct comparison of the chiral recognition abilities of the laboratory-made and commercially available columns was discussed.
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Affiliation(s)
- Xiao-Ming Chen
- EcoTopia Science Institute, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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Allyltrimethoxysilane as the Reagent of Double Bond Introduction to Porous Silica for Preparation of a Chiral Stationary Phase in Comparison with Allyltriethoxysilane. B KOREAN CHEM SOC 2006. [DOI: 10.5012/bkcs.2006.27.7.1059] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Zhang T, Nguyen D, Franco P, Murakami T, Ohnishi A, Kurosawa H. Cellulose 3,5-dimethylphenylcarbamate immobilized on silica. Anal Chim Acta 2006. [DOI: 10.1016/j.aca.2005.10.017] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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38
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Luo X, Zhai Z, Wu X, Shi Y, Chen L, Li Y. Analytical and semipreparative resolution of ranolazine enantiomers by liquid chromatography using polysaccharide chiral stationary phases. J Sep Sci 2006; 29:164-71. [PMID: 16485722 DOI: 10.1002/jssc.200500174] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Novel HPLC methods were developed for the analytical and semipreparative resolution of new antianginal drug ranolazine enantiomers. Good baseline enantioseparation was achieved using cellulose tris (3,5-dimethylphenylcarbamate) (CDMPC) chiral stationary phases (CSPs) under both normal-phase and polar organic modes. The validation of the analytical methods including linearity, LODs, recovery, and precision, and the semipreparative resolution of ranolazine racemate were carried out using methanol as mobile phase without any basic and acidic additives under polar organic mode, using CDMPC CSPs. At analytical scale, the elution times of both enantiomers were less than 7.5 min at 20 degrees C and 1.0 mL/min, with the separation factor (a) 1.88 and the resolution factor (R(s)) 2.95. At semipreparative scale, about 14.3 mg/h enantiomers could be isolated and elution times of both enantiomers were less than 13 min at 2.0 mL/min. To increase the throughput, the technique of overlapping injections was used. The first eluted enantiomer was isolated with a purity of 99.6% enantiomer excess (e.e.) and > 99.0% yield. The second enantiomer was isolated with a purity of 98.8% e.e. and > 99.0% yield. In addition, optical rotation and circular dichroism spectroscopy of both ranolazine enantiomers isolated were also investigated.
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Affiliation(s)
- Xingping Luo
- Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, PR China
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Guo Z, Lei A, Liang X, Xu Q. Click chemistry: a new facile and efficient strategy for preparation of functionalized HPLC packings. Chem Commun (Camb) 2006:4512-4. [PMID: 17283802 DOI: 10.1039/b610733h] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Click chemistry has been successfully extended into the field of preparation of functionalized HPLC packings, proving a novel facile and efficient strategy for covalently bonding stationary phases onto HPLC grade silica beads; the potential has been demonstrated by the preparation of "Click I-IV" columns and preliminary results in the separation of sugars.
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Affiliation(s)
- Zhimou Guo
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, P. R. China
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Qin F, Liu Y, Chen X, Kong L, Zou H. Capillary electrochromatographic separation of enantiomers under aqueous mobile phases on a covalently bonded cellulose derivative chiral stationary phase. Electrophoresis 2005; 26:3921-9. [PMID: 16152670 DOI: 10.1002/elps.200500054] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A chemically bonded cellulose tris(3,5-dimethylphenylcarbamate) chiral stationary phase (CSP) was prepared by a radical polymerization reaction. The prepared CSP was packed into fused-silica capillaries with inner diameter of 75 microm to perform enantiomer separations in CEC. The electrochromatographic behavior of the CSP was investigated. On the prepared CSP, high EOF could be generated under acidic mobile phases, which represented an advantage for the separation of acidic enantiomers. Several neutral, acidic, and basic enantiomers were resolved on the prepared CSP under aqueous mobile phases. The column efficiencies were between 20,000 and 100,000 plates/m, which were much higher than those of HPLC. In addition, it was observed that the separation of some enantiomers benefited from the adoption of THF as mobile phase modifier.
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Affiliation(s)
- Feng Qin
- National Chromatographic Research & Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
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Zhang T, Kientzy C, Franco P, Ohnishi A, Kagamiharb Y, Kurosawa H. Solvent versatility of immobilized 3,5-dimethylphenylcarbamate of amylose in enantiomeric separations by HPLC. J Chromatogr A 2005; 1075:65-75. [PMID: 15974119 DOI: 10.1016/j.chroma.2005.03.116] [Citation(s) in RCA: 155] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
CHIRALPAK IA is a new chiral stationary phase containing amylose 3.5-dimethylphenylcarbamate immobilized onto silica gel. It is compatible with the whole range of organic solvents. Its solvent versatility has been thoroughly investigated. The option to use a wide range of solvents, especially the "non-standards" ones, in the mobile phase enables the enhancement of chiral separation methods in terms of enantioselectivity, resolution, analysis time, sample injection and sample solubility. Parameters such as the mobile phase type, the nature of modifier and eluting strength of various solvents are examined and discussed. A guideline for method development and optimization on CHIRALPAK IA is also proposed.
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Affiliation(s)
- Tong Zhang
- Chiral Technologies Europe, Parc d'lnnovation, Bd. Gonthier d 'Andernach, 67404 Illkirch, Cedex, France.
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Qin F, Chen X, Liu Y, Kong L, Zou H. Enantiomer separation of dimethyl dicarboxy α-biphenyl (DDB) and its analogues on a covalently bonded cellulose tris-(3,5-dimethylphenyl-carbamate) CSP. J Sep Sci 2004; 27:1195-201. [PMID: 15537076 DOI: 10.1002/jssc.200401789] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Dimethyl dicarboxy alpha-biphenyl (DDB) and its analogues represent atropisomers which have been resolved on the covalently bonded cellulose tris-(3,5-dimethylphenylcarbamate) (CDMPC) CSP. Different kinds of alcohols, tetrahydrofuran (THF), and chloroform were employed as mobile phase modifiers (MPMs), and their influence on the retention and separation of the enantiomers was investigated. Ternary mobile phases (hexane/2-propanol/THF, hexane/2-propanol/chloroform) were employed to investigate the separation of the five enantiomers. The advantages of the broader choice of solvents offered by the covalently bonded CDMPC CSP were discussed. The effect of structural variation of the enantiomers on their retention and separation was investigated.
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Affiliation(s)
- Feng Qin
- National Chromatographic Research & Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116011, China
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