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Chen T, Xu L, Song G, Li Y, Xu H, Zhou H, Xiao Z, Li P. Preparation and application of Au nanoparticles-decorated SO3H-cofunctionalized silica stationary phase for per aqueous liquid chromatography. Microchem J 2021. [DOI: 10.1016/j.microc.2021.105985] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Hu C, Mao Z, Li Z, Li Q, Chen Z. Benzoic acid-modified monolithic column for separation of hydrophilic compounds by capillary electrochromatography with high content of water in mobile phase. J Chromatogr A 2021; 1647:462166. [PMID: 33957344 DOI: 10.1016/j.chroma.2021.462166] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 04/07/2021] [Accepted: 04/12/2021] [Indexed: 12/15/2022]
Abstract
Hydrophilic column combined with mobile phase containing high content of water is a green method for the separation of polar compounds, but there are few related studies, and the separation efficiency and performance of existing columns still needs to be improved. In this work, a novel monolithic column for separation of hydrophilic compounds under both high water content and HILIC condition, was prepared by in-situ polymerization using 4-vinylbenzoic acid (VBA) and 1-(Acryloyloxy)-3-(methacryloyloxy)-2-propanol (AMAP) as functional monomers. The poly(VBA-co-AMAP) monolithic column showed good separation performance towards various polar compounds under different chromatographic conditions based on the π-interaction, hydrophobic and hydrogen bonding interactions provided by 4-vinylbenzoic acid functional monomer. The highest column efficiency for adenine was over 2.15 × 105 plates m-1 (theoretical plate, N). In addition, the monolith showed good stability and reproducibility, the relative standard deviations (RSDs) of retention times within days (n = 5), between days (n = 5), between columns (n = 3) and between batches (n = 3) were 0.47-1.13%, 1.20-2.68%, 0.59-1.78% and 1.54-3.60%, respectively. This novel type of monolith has great application potential in the separation of hydrophilic compounds.
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Affiliation(s)
- Changjun Hu
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, and Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, China; State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Beijing 100080, China
| | - Zhenkun Mao
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, and Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, China; State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Beijing 100080, China
| | - Zhentao Li
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, and Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, China; State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Beijing 100080, China
| | - Qiaoyan Li
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, and Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, China; State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Beijing 100080, China
| | - Zilin Chen
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, and Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, China; State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Beijing 100080, China.
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Advancements in the preparation and application of monolithic silica columns for efficient separation in liquid chromatography. Talanta 2021; 224:121777. [PMID: 33379011 DOI: 10.1016/j.talanta.2020.121777] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 10/11/2020] [Accepted: 10/12/2020] [Indexed: 01/23/2023]
Abstract
Fast and efficient separation remains a big challenge in high performance liquid chromatography (HPLC). The need for higher efficiency and resolution in separation is constantly in demand. To achieve that, columns developed are rapidly moving towards having smaller particle sizes and internal diameters (i.d.). However, these parameters will lead to high back-pressure in the system and will burden the pumps of the HPLC instrument. To address this limitation, monolithic columns, especially silica-based monolithic columns have been introduced. These columns are being widely investigated for fast and efficient separation of a wide range of molecules. The present article describes the current methods developed to enhance the column efficiency of particle packed columns and how silica monolithic columns can act as an alternative in overcoming the low permeability of particle packed columns. The fundamental processes behind the fabrication of the monolith including the starting materials and the silica sol-gel process will be discussed. Different monolith derivatization and end-capping processes will be further elaborated and followed by highlights of the performance such monolithic columns in key applications in different fields with various types of matrices.
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Li L, Qin Y, Ma B, Cui H, Qiao P, Jiang H, Zhang M. Direct and simultaneous determination of methionine sulfoxide and pyroglutamic acid impurities in Compound Amino Acid Injection-18 AA by ion-pair reversed-phase HPLC. SEPARATION SCIENCE PLUS 2018. [DOI: 10.1002/sscp.201800059] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Li Li
- Kangda College of Nanjing Medical University; Lianyungang China
| | - Yaru Qin
- Kangda College of Nanjing Medical University; Lianyungang China
| | - Bingyuan Ma
- Kangda College of Nanjing Medical University; Lianyungang China
| | - Hongyan Cui
- Kangda College of Nanjing Medical University; Lianyungang China
| | - Ping Qiao
- Kangda College of Nanjing Medical University; Lianyungang China
| | - He Jiang
- Kangda College of Nanjing Medical University; Lianyungang China
| | - Ming Zhang
- Kangda College of Nanjing Medical University; Lianyungang China
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Zhao H, Lyu H, Qin W, Xie Z. Synthesis of boronate-functionalized organic-inorganic hybrid monolithic column for the separation of cis-diol containing compounds at low pH. Electrophoresis 2018; 39:924-932. [DOI: 10.1002/elps.201700337] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 11/13/2017] [Accepted: 12/28/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Heqing Zhao
- College of Materials Science and Engineering; Fuzhou University; Fuzhou P. R. China
| | - Haixia Lyu
- College of Materials Science and Engineering; Fuzhou University; Fuzhou P. R. China
| | - Wenfei Qin
- College of Materials Science and Engineering; Fuzhou University; Fuzhou P. R. China
| | - Zenghong Xie
- Institute of Food Safety and Environmental Monitoring; Fuzhou University; Fuzhou P. R. China
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Lyu H, Zhao H, Qin W, Xie Z. Preparation of a long-alkyl-chain-based hybrid monolithic column with mixed-mode interactions using a "one-pot" process for pressurized capillary electrochromatography. J Sep Sci 2017; 40:4521-4529. [PMID: 28985036 DOI: 10.1002/jssc.201700772] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 09/26/2017] [Accepted: 09/27/2017] [Indexed: 11/07/2022]
Abstract
A simple "one-pot" approach for the preparation of a new vinyl-functionalized organic-inorganic hybrid monolithic column is described. In this improved method, the hydrolyzed alkoxysilanes of tetramethoxysilane and triethoxyvinylsilane were used as precursors for the synthesis of a silica-based monolith, while 1-hexadecene and sodium ethylenesulfonate were used as vinyl functional monomers along with azobisisobutyronitrile as an initiator. The effects of reaction temperature, urea content, and composition of organic monomers on the column properties (e.g. morphology, mechanical stability, and chromatographic performance) were investigated. The monolithic column was used for the separation of neutral solutes by reversed-phase pressurized capillary. Furthermore, the monolith can separate various aromatic amines, which indicated its excellent cation-exchange capability and hydrophobic interactions. The baseline separation of the aromatic amines was obtained with a column efficiency of up to 78 000 plates/m.
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Affiliation(s)
- Haixia Lyu
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, China
| | - Heqing Zhao
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, China
| | - Wenfei Qin
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, China
| | - Zenghong Xie
- Institute of Food Safety and Environmental Monitoring, Fuzhou University, Fuzhou, China
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Ruan M, Wang Q, Wu H, Wang Y, Han H, Jiang Z. Preparation and evaluation oftert-leucine derivative functionalized polymeric monoliths for micro-liquid chromatography. Electrophoresis 2017; 38:3020-3028. [DOI: 10.1002/elps.201700176] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 07/09/2017] [Accepted: 07/10/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Meng Ruan
- Institute of Pharmaceutical Analysis, College of Pharmacy; Jinan University; Guangzhou P. R. China
| | - Qiqin Wang
- Institute of Pharmaceutical Analysis, College of Pharmacy; Jinan University; Guangzhou P. R. China
- Integrated Chinese and Western Medicine Postdoctoral research station; Jinan University; Guangzhou P. R. China
| | - Huihui Wu
- Institute of Pharmaceutical Analysis, College of Pharmacy; Jinan University; Guangzhou P. R. China
| | - Yuqiang Wang
- Institute of Pharmaceutical Analysis, College of Pharmacy; Jinan University; Guangzhou P. R. China
| | - Hai Han
- Institute of Pharmaceutical Analysis, College of Pharmacy; Jinan University; Guangzhou P. R. China
| | - Zhengjin Jiang
- Institute of Pharmaceutical Analysis, College of Pharmacy; Jinan University; Guangzhou P. R. China
- Department of Pharmacy and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine & New Drug Research; Jinan University; Guangzhou P. R. China
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Wang H, Hu W, Zheng Q, Bian W, Lin Z. One-pot preparation of mercaptotetrazole-silica hybrid monoliths by the thiol-ene click reaction for mixed-mode capillary liquid chromatography. J Sep Sci 2017; 40:2344-2354. [DOI: 10.1002/jssc.201700220] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 03/27/2017] [Accepted: 03/28/2017] [Indexed: 11/12/2022]
Affiliation(s)
- Haojiang Wang
- School of Basic Medical Sciences; Shanxi Medical University; Taiyuan Shanxi China
| | - Wenli Hu
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety; Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety; College of Chemistry; Fuzhou University; Fuzhou Fujian China
| | - Qiong Zheng
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety; Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety; College of Chemistry; Fuzhou University; Fuzhou Fujian China
| | - Wei Bian
- School of Basic Medical Sciences; Shanxi Medical University; Taiyuan Shanxi China
| | - Zian Lin
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety; Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety; College of Chemistry; Fuzhou University; Fuzhou Fujian China
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Zajickova Z. Advances in the development and applications of organic–silica hybrid monoliths. J Sep Sci 2016; 40:25-48. [DOI: 10.1002/jssc.201600774] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 08/11/2016] [Accepted: 09/04/2016] [Indexed: 12/12/2022]
Affiliation(s)
- Zuzana Zajickova
- Department of Physical Sciences Barry University Miami Shores FL USA
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Hong T, Yang X, Xu Y, Ji Y. Recent advances in the preparation and application of monolithic capillary columns in separation science. Anal Chim Acta 2016; 931:1-24. [DOI: 10.1016/j.aca.2016.05.013] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 05/07/2016] [Accepted: 05/09/2016] [Indexed: 12/12/2022]
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Urban J. Current trends in the development of porous polymer monoliths for the separation of small molecules. J Sep Sci 2015; 39:51-68. [DOI: 10.1002/jssc.201501011] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Revised: 09/17/2015] [Accepted: 09/18/2015] [Indexed: 01/15/2023]
Affiliation(s)
- Jiří Urban
- Department of Analytical Chemistry, Faculty of Chemical Technology; University of Pardubice; Pardubice Czech Republic
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