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Themelis T, Amini A, De Vos J, Eeltink S. Towards spatial comprehensive three-dimensional liquid chromatography: A tutorial review. Anal Chim Acta 2021; 1148:238157. [DOI: 10.1016/j.aca.2020.12.032] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 12/15/2020] [Accepted: 12/16/2020] [Indexed: 01/19/2023]
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Ofridam F, Tarhini M, Lebaz N, Gagnière É, Mangin D, Elaissari A. pH
‐sensitive polymers: Classification and some fine potential applications. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5230] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Fabrice Ofridam
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007 Villeurbanne France
| | - Mohamad Tarhini
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, ISA UMR 5280 Villeurbanne France
| | - Noureddine Lebaz
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007 Villeurbanne France
| | - Émilie Gagnière
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007 Villeurbanne France
| | - Denis Mangin
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007 Villeurbanne France
| | - Abdelhamid Elaissari
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, ISA UMR 5280 Villeurbanne France
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Wu Q, Chen L, Gao J, Dong S, Li H, Di D, Zhao L. Graphene quantum dots-functionalized C18 hydrophobic/hydrophilic stationary phase for high performance liquid chromatography. Talanta 2019; 194:105-113. [DOI: 10.1016/j.talanta.2018.10.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 09/29/2018] [Accepted: 10/07/2018] [Indexed: 02/07/2023]
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Zhang M, Gong L, Liu G, Kang J. Preparation of a monolithic column with a mixed-mode stationary phase of reversed-phase/hydrophilic interaction for capillary liquid chromatography. J Sep Sci 2019; 42:662-669. [DOI: 10.1002/jssc.201800826] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 11/02/2018] [Accepted: 11/02/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Meng Zhang
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Shanghai P. R. China
- School of physical science and technology; ShanghaiTech University; Shanghai P. R. China
| | - Li Gong
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Shanghai P. R. China
| | - Guizhen Liu
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Shanghai P. R. China
- School of physical science and technology; ShanghaiTech University; Shanghai P. R. China
| | - Jingwu Kang
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Shanghai P. R. China
- School of physical science and technology; ShanghaiTech University; Shanghai P. R. China
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Wang Q, Long Y, Yao L, Ye M, Xu L. C18-COOH Silica: Preparation, Characterisation and Its Application in Purification of Quaternary Ammonium Alkaloids from Coptis chinensis. PHYTOCHEMICAL ANALYSIS : PCA 2017; 28:332-343. [PMID: 28198057 DOI: 10.1002/pca.2680] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 12/25/2016] [Accepted: 01/18/2017] [Indexed: 06/06/2023]
Abstract
INTRODUCTION Traditional methods for isolating and purifying quaternary ammonium alkaloids from Coptis chinensis do not discriminate the target alkaloids from co-extractives. Mixed-mode analytical chromatography has the potential to improve the separation of analytes in more complex extracts and, when used in a solid-phase extraction mode, improve the purity of isolated compounds. OBJECTIVE To examine the high-performance liquid chromatographic separation capabilities of a mixed-mode, silica-based adsorbent and its application to the purification of quaternary ammonium alkaloids from Coptis chinensis based on solid-phase extraction. METHODOLOGY The C18-COOH silica was prepared via "thiol-ene" click chemistry. Its chromatographic performance was firstly investigated. It was employed as the solid-phase extraction sorbent to purify quaternary ammonium alkaloids. RESULTS Hydrophobic, attractive/repulsive electrostatic and ion-exchange interactions were demonstrated to be the possible retention mechanisms of a C18-COOH silica stationary phase, which could separate analytes of various properties. In addition, to purify quaternary ammonium alkaloids from Coptis chinensis, the solid-phase extraction approach based on the C18-COOH silica provided a slightly higher purification efficiency (6.7%) than an alkaloid-salt precipitation protocol (5.3%). The method had satisfactory reproducibility, re-using the same solid-phase extraction column three times, with relative standard deviations ranging from 1.99% to 8.02% for the six target alkaloids. CONCLUSION A multi-functionalised silica was synthesised via "click chemistry". As the high-performance liquid chromatographic stationary phase, the C18-COOH silica could be operated in trimodal reversed-phase/weak cation exchange/hydrophilic interaction mode. The C18-COOH silica also exhibited potential as solid-phase extraction sorbent in the purification of quaternary ammonium alkaloids from complex matrices. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Qing Wang
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, 430030, China
- Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin, 300134, China
| | - Yao Long
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Lin Yao
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Mao Ye
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Li Xu
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, 430030, China
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Sepehrifar R, Boysen RI, Danylec B, Yang Y, Saito K, Hearn MT. Design, synthesis and application of a new class of stimuli-responsive separation materials. Anal Chim Acta 2017; 963:153-163. [DOI: 10.1016/j.aca.2017.01.061] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 01/25/2017] [Accepted: 01/29/2017] [Indexed: 11/29/2022]
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Zeng J, Liu S, Wang M, Yao S, Chen Y. The synthesis of weak acidic type hybrid monolith via thiol-ene click chemistry and its application in hydrophilic interaction chromatography. Electrophoresis 2017; 38:1325-1333. [DOI: 10.1002/elps.201600526] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 02/05/2017] [Accepted: 02/05/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Jiao Zeng
- State Key Laboratory of Chemo/Biosensing & Chemometrics, College of Chemistry & Chemical Engineering; Hunan University; Changsha P. R. China
| | - Shengquan Liu
- State Key Laboratory of Chemo/Biosensing & Chemometrics, College of Chemistry & Chemical Engineering; Hunan University; Changsha P. R. China
| | - Menglin Wang
- State Key Laboratory of Chemo/Biosensing & Chemometrics, College of Chemistry & Chemical Engineering; Hunan University; Changsha P. R. China
| | - Shouzhuo Yao
- State Key Laboratory of Chemo/Biosensing & Chemometrics, College of Chemistry & Chemical Engineering; Hunan University; Changsha P. R. China
| | - Yingzhuang Chen
- Key Laboratory of Phytochemical R&D of Hunan Province; Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Ministry of Education; Hunan Normal University; Changsha P. R. China
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He XM, Chen X, Yuan BF, Feng YQ. Graft modification of cotton with phosphate group and its application to the enrichment of phosphopeptides. J Chromatogr A 2017; 1484:49-57. [DOI: 10.1016/j.chroma.2017.01.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 12/15/2016] [Accepted: 01/06/2017] [Indexed: 10/20/2022]
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Wang Q, Xu L, Xue YW. Preparation, evaluation, and application of a novel reversed-phase/zwitterionic/hydrophilic interaction liquid chromatographic mixed-mode stationary phase. J LIQ CHROMATOGR R T 2016. [DOI: 10.1080/10826076.2016.1213174] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Qing Wang
- Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, Huanggang Normal University, Huangzhou, China
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, China
- College of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin, China
| | - Li Xu
- Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, Huanggang Normal University, Huangzhou, China
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, China
| | - Ying-wen Xue
- School of Civil Engineering, Wuhan University, Wuhan, China
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Sepehrifar R, Boysen RI, Danylec B, Yang Y, Saito K, Hearn MT. Application of pH-responsive poly(2-dimethyl-aminoethylmethacrylate)-block-poly(acrylic acid) coatings for the open-tubular capillary electrochromatographic analysis of acidic and basic compounds. Anal Chim Acta 2016; 917:117-25. [DOI: 10.1016/j.aca.2016.02.045] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2015] [Revised: 02/22/2016] [Accepted: 02/26/2016] [Indexed: 12/16/2022]
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11
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Preparation, characterization and application of a reversed phase liquid chromatography/hydrophilic interaction chromatography mixed-mode C18-DTT stationary phase. Talanta 2016; 146:442-51. [DOI: 10.1016/j.talanta.2015.09.009] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 09/02/2015] [Accepted: 09/06/2015] [Indexed: 11/24/2022]
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12
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Li Y, Zhu N, Chen T, Wei M, Ma Y. Stationary Phase Based on β-Cyclodextrin and Poly(N-isopropylacrylamide) for HILIC and RPLC. Chromatographia 2015. [DOI: 10.1007/s10337-015-2989-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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13
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Wang Q, Ye M, Xu L, Shi ZG. A reversed-phase/hydrophilic interaction mixed-mode C18-Diol stationary phase for multiple applications. Anal Chim Acta 2015; 888:182-90. [DOI: 10.1016/j.aca.2015.06.058] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 06/24/2015] [Accepted: 06/26/2015] [Indexed: 01/25/2023]
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Magda B, Márta Z, Imre T, Kalapos-Kovács B, Klebovich I, Fekete J, Szabó PT. Unexpected retention behavior of baicalin: Hydrophilic interaction like properties of a reversed-phase column. J Pharm Biomed Anal 2015; 111:119-25. [DOI: 10.1016/j.jpba.2015.03.037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 03/27/2015] [Accepted: 03/28/2015] [Indexed: 11/30/2022]
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15
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Lorenzo RA, Carro AM, Concheiro A, Alvarez-Lorenzo C. Stimuli-responsive materials in analytical separation. Anal Bioanal Chem 2015; 407:4927-48. [DOI: 10.1007/s00216-015-8679-1] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 03/30/2015] [Accepted: 04/07/2015] [Indexed: 02/07/2023]
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Ohyama K, Takasago S, Kishikawa N, Kuroda N. Poly(l-lactic acid)-modified silica stationary phase for reversed-phase and hydrophilic interaction liquid chromatography. J Sep Sci 2015; 38:720-3. [DOI: 10.1002/jssc.201401243] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 12/16/2014] [Accepted: 12/16/2014] [Indexed: 11/07/2022]
Affiliation(s)
- Kaname Ohyama
- Course of Pharmaceutical Sciences; Graduate School of Biomedical Sciences; Nagasaki University; Nagasaki Japan
| | - Shizuka Takasago
- Course of Pharmaceutical Sciences; Graduate School of Biomedical Sciences; Nagasaki University; Nagasaki Japan
| | - Naoya Kishikawa
- Course of Pharmaceutical Sciences; Graduate School of Biomedical Sciences; Nagasaki University; Nagasaki Japan
| | - Naotaka Kuroda
- Course of Pharmaceutical Sciences; Graduate School of Biomedical Sciences; Nagasaki University; Nagasaki Japan
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Ohyama K, Inoue Y, Kishikawa N, Kuroda N. Preparation and characterization of surfactin-modified silica stationary phase for reversed-phase and hydrophilic interaction liquid chromatography. J Chromatogr A 2014; 1371:257-60. [PMID: 25456604 DOI: 10.1016/j.chroma.2014.10.073] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 09/20/2014] [Accepted: 10/24/2014] [Indexed: 11/18/2022]
Abstract
Surfactants are good candidates as selectors in mixed-mode reversed-phase liquid chromatography (RPLC)/hydrophilic interaction liquid chromatography (HILIC) because they contain both a hydrophobic and a hydrophilic moiety. Surfactin, a cyclic heptapeptide, is an efficient biosurfactant produced by Bacillus subtilis that comprises seven amino acids and a β-hydroxyl fatty acid. A surfactin-modified silica (SMS) stationary phase was prepared by amide bond formation between amino groups on aminopropyl silica and the carboxylic acid groups of L-Glu and L-Asp residues in surfactin. The resulting SMS stationary phase was characterized in both RPLC and HILIC mode using different mobile phases. The SMS column was found to separate analytes in both modes. The retention of polar solutes exhibited "U-shaped" curves, depending on the acetonitrile content. "U-shaped" curves are an indicator of RPLC/HILIC mixed-mode retention behavior. The presence of hydrophobic and hydrophilic moieties in surfactin provides unique properties that allow the SMS column to be used for both RPLC and HILIC separations, simply by changing the mobile phase composition.
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Affiliation(s)
- Kaname Ohyama
- Course of Pharmaceutical Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Japan
| | - Yu Inoue
- Course of Pharmaceutical Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Japan
| | - Naoya Kishikawa
- Course of Pharmaceutical Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Japan
| | - Naotaka Kuroda
- Course of Pharmaceutical Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Japan.
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Cabane E, Keplinger T, Merk V, Hass P, Burgert I. Renewable and functional wood materials by grafting polymerization within cell walls. CHEMSUSCHEM 2014; 7:1020-1025. [PMID: 24616291 DOI: 10.1002/cssc.201301107] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Indexed: 06/03/2023]
Abstract
A "grafting-from" polymerization approach within and at the complex and heterogeneous macromolecular assembly of wood cell walls is shown. The approach allows for the implementation of novel functionalities in renewable and functional wood-based materials. The native wood structure is retained and used as a hierarchical multiscale framework for a modular two-step polymerization process. The versatility and potential of the approach is shown by a polymerization of either hydrophobic or hydrophilic and pH-responsive monomers in the wood structure. Characterization of the modified wood reveals the presence of polymer in the cell wall, and the new properties of these wood materials are discussed.
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Affiliation(s)
- Etienne Cabane
- Wood Materials Science, Institute for Building Materials, ETH Zürich, Stefano-Franscini-Platz 3, 8093 Zürich (Switzerland); Applied Wood Materials, EMPA-Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf (Switzerland).
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García-Gómez D, Rodríguez-Gonzalo E, Carabias-Martínez R. Stationary phases for separation of nucleosides and nucleotides by hydrophilic interaction liquid chromatography. Trends Analyt Chem 2013. [DOI: 10.1016/j.trac.2013.02.011] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Li J, Li Y, Chen T, Xu L, Liu X, Zhang X, Zhang H. Preparation, chromatographic evaluation and comparison between linear peptide- and cyclopeptide-bonded stationary phases. Talanta 2013; 109:152-9. [DOI: 10.1016/j.talanta.2013.02.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Revised: 01/30/2013] [Accepted: 02/01/2013] [Indexed: 10/27/2022]
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21
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Petruczynik A, Waksmundzka-Hajnos M. Application of hydrophilic interaction chromatography in phytochemical analysis. ACTA CHROMATOGR 2013. [DOI: 10.1556/achrom.25.2013.1.1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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22
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Chen ML, Li LM, Yuan BF, Ma Q, Feng YQ. Preparation and characterization of methacrylate-based monolith for capillary hydrophilic interaction chromatography. J Chromatogr A 2012; 1230:54-60. [DOI: 10.1016/j.chroma.2012.01.065] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2011] [Revised: 01/18/2012] [Accepted: 01/23/2012] [Indexed: 11/16/2022]
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23
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Peng XT, Yuan BF, Feng YQ. Grafting of silica with a hydrophilic triol acrylamide polymer via surface-initiated “grafting from” method for hydrophilic-interaction chromatography. J Sep Sci 2011; 34:3123-30. [DOI: 10.1002/jssc.201100570] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2011] [Revised: 08/04/2011] [Accepted: 08/23/2011] [Indexed: 11/11/2022]
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Imidazoline type stationary phase for hydrophilic interaction chromatography and reversed-phase liquid chromatography. J Chromatogr A 2011; 1218:5987-94. [DOI: 10.1016/j.chroma.2011.04.023] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2010] [Revised: 04/06/2011] [Accepted: 04/08/2011] [Indexed: 11/19/2022]
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25
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Chen ML, Wei SS, Yuan BF, Feng YQ. Preparation of methacrylate-based monolith for capillary hydrophilic interaction chromatography and its application in determination of nucleosides in urine. J Chromatogr A 2011; 1228:183-92. [PMID: 21816405 DOI: 10.1016/j.chroma.2011.07.061] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2011] [Revised: 06/16/2011] [Accepted: 07/17/2011] [Indexed: 01/03/2023]
Abstract
A novel poly(N-acryloyltris(hydroxymethyl)aminomethane-co-pentaerythritol triacrylate) (NAHAM-co-PETA) monolith was prepared in the 100 μm i.d. capillary and investigated for capillary liquid chromatography (cLC). The polymer monolith was synthesized by in situ polymerization of NAHAM and PETA in the presence of polyethylene glycol (PEG) in dimethyl sulfoxide (DMSO) as the porogen. The porous structure of monolith was optimized by changing the ratio of NAHAM to PETA, the molecular weight and amount of PEG. To evaluate the separation performance of the resultant polymer monolith, several groups of model compounds (including nucleosides, benzoic acids and anilines) were selected to perform cLC separation. Our results showed that these model compounds can be baseline separated on the resultant poly(NAHAM-co-PETA) monolithic column with the optimized mobile phases. The column efficiency was estimated to be 87,000 plates/m for acrylamide. In addition, this monolithic column was coupled with on-line solid-phase microextraction (SPME) for the analysis of four nucleosides (uridine, adenosine, cytidine, guanosine) in urine. The limit of detection of the proposed method was in the range from 40 to 52 ng/mL. The method reproducibility was obtained by evaluating the intra- and inter-day precisions with relative standard deviations (RSDs) less than 8.3% and 10.2%, respectively. Recoveries of the target analytes from spiked urine samples were ranged from 86.5% to 106.8%.
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Affiliation(s)
- Ming-Luan Chen
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, China
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Preparation and Evaluation of Poly-l-Lysine Stationary Phase for Hydrophilic Interaction/Reversed-Phase Mixed-Mode Chromatography. Chromatographia 2011. [DOI: 10.1007/s10337-011-2120-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Hwang DG, Zaidi SA, Cheong WJ. Use of chain transfer agent attached to silica particles in preparation of polystyrene-based stationary phases. J Sep Sci 2010; 33:587-93. [DOI: 10.1002/jssc.200900578] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Zhang R, Qi L, Xiao Q, Xin P, Yang G. Preparation and Characterization of Temperature-responsive Porous Monoliths. CHINESE J CHEM 2009. [DOI: 10.1002/cjoc.200990374] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Valls J, Millán S, Martí MP, Borràs E, Arola L. Advanced separation methods of food anthocyanins, isoflavones and flavanols. J Chromatogr A 2009; 1216:7143-72. [PMID: 19691963 DOI: 10.1016/j.chroma.2009.07.030] [Citation(s) in RCA: 182] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2009] [Revised: 06/15/2009] [Accepted: 07/02/2009] [Indexed: 01/13/2023]
Abstract
In recent years, increasing knowledge of the positive health effects of food polyphenols has prompted the need to develop new separation techniques for their extraction, fractionation and analysis. This article provides an updated and exhaustive review of the application of counter-current chromatography, high performance liquid chromatography, capillary electrophoresis, and their hyphenation with mass spectrometry to the study of food polyphenols. Flavonoids constitute the largest class of polyphenols, widely spread in the plant kingdom and common in human diet which has been the most widely studied with respect to their antioxidant and biological activities. The main subgroups are anthocyanins, catechins, isoflavones, flavonols and flavones. They are reported to exhibit antioxidant, anti-carcinogenic, anti-inflammatory, anti-atherogenic, anti-thrombotic, and immune modulating functions, among others. Since red fruit anthocyanins, soy isoflavones and flavanols from grapes and teas are currently the most used phenolic compounds for producing new nutraceuticals and functional foods, this review is focused on these three flavonoid groups.
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Wei X, Qi L, Yang G, Wang F. Preparation and characterization of monolithic column by grafting pH-responsive polymer. Talanta 2009; 79:739-45. [DOI: 10.1016/j.talanta.2009.04.062] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2009] [Revised: 04/27/2009] [Accepted: 04/29/2009] [Indexed: 11/30/2022]
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