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Li Y, Gao Z, Chen T, Wei M, Ma Y, Ma X, Xu H. Polysaccharide-Based Chiral Stationary Phases on Gold Nanoparticles Modified Silica Beads for Liquid-Phase Separation of Enantiomers. J Chromatogr Sci 2020; 58:731-736. [PMID: 32720694 DOI: 10.1093/chromsci/bmaa042] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 04/17/2020] [Accepted: 07/04/2020] [Indexed: 11/14/2022]
Abstract
Abstract
Au nanoparticles (AuNPs) (10−15 nm in size) were prepared and deposited on the surfaces of silica particles functionalized using 3-aminopropyltriethoxysilane as the seeds under mild conditions. Then, Au seeds grew further and formed nanosheets by the method of gold chloride hydrate reduction. 3, 5-dimethylphenyl isocyanate derivative of cellulose as chiral selector was coated on the surfaces of SiO2/Au. The obtained spheres possessed a sandwich structure in which silica bead, the packed Au NPs monolayer and cellulose derivative were the core, the interlayer and the shell, respectively. The resultant packing material was evaluated by high-performance liquid chromatography (HPLC) as chiral stationary phase (CSP). The separations of nine pairs of enantiomers were achieved in the normal-phase liquid chromatography mode. The results showed that the new CSP has sufficient interaction with the analytes due to the existence of AuNPs on silica surfaces compared with coated cellulose-silica column.
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Affiliation(s)
- Yuanyuan Li
- State Key Laboratory of High-efficiency Utilization of Coal & Green Chemical Engineering, Ningxia University, 489 Helanshan West Road, Yinchuan 750021, China
- College of Chemistry and Chemical Engineering, Ningxia University, 489 Helanshan West Road, Yinchuan 750021, China
| | - Zhuxian Gao
- State Key Laboratory of High-efficiency Utilization of Coal & Green Chemical Engineering, Ningxia University, 489 Helanshan West Road, Yinchuan 750021, China
- College of Chemistry and Chemical Engineering, Ningxia University, 489 Helanshan West Road, Yinchuan 750021, China
| | - Tong Chen
- Institute of Comprehensive Technology Center, Zhenjiang Customs District P. R. of China, 84 Dongwu Road, Zhenjiang 212008, China
| | - Manman Wei
- State Key Laboratory of High-efficiency Utilization of Coal & Green Chemical Engineering, Ningxia University, 489 Helanshan West Road, Yinchuan 750021, China
| | - Yulong Ma
- State Key Laboratory of High-efficiency Utilization of Coal & Green Chemical Engineering, Ningxia University, 489 Helanshan West Road, Yinchuan 750021, China
- College of Chemistry and Chemical Engineering, Ningxia University, 489 Helanshan West Road, Yinchuan 750021, China
| | - Xiaoxia Ma
- State Key Laboratory of High-efficiency Utilization of Coal & Green Chemical Engineering, Ningxia University, 489 Helanshan West Road, Yinchuan 750021, China
- College of Chemistry and Chemical Engineering, Ningxia University, 489 Helanshan West Road, Yinchuan 750021, China
| | - Hong Xu
- Institute of Technology Center, Shanghe New Materials (Zhenjiang) Technology Co., Ltd., 29 Guantang Bridge Avenue Ocean, Zhenjiang 212000,China
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Mun M, Cheong WJ. Disposable Microcolumn with a Welded Metal Frit and a Silver Cement Frit. B KOREAN CHEM SOC 2019. [DOI: 10.1002/bkcs.11710] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Miri Mun
- Department of ChemistryInha University Incheon 22212 South Korea
| | - Won Jo Cheong
- Department of ChemistryInha University Incheon 22212 South Korea
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Polysaccharide-Based Chiral Stationary Phases for Enantioseparations by High-Performance Liquid Chromatography: An Overview. Methods Mol Biol 2019; 1985:93-126. [PMID: 31069731 DOI: 10.1007/978-1-4939-9438-0_6] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This chapter summarizes the application of polysaccharide-based chiral stationary phases (CSPs) for separation of enantiomers in high-performance liquid chromatography (HPLC). Since this book contains dedicated chapters on enantioseparations using supercritical fluid chromatography (SFC), or capillary electrochromatography (CEC), the application of polysaccharide-based materials in these modes of liquid-phase separation techniques is touched just superficially. Special emphasis is directed toward a discussion of the optimization of polysaccharide-based chiral selectors, their attachment onto the carrier, and the optimization of the support. The optimization of the separation of enantiomers based on various parameters such as mobile phase composition and temperature is discussed.
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Park SY, Cheong WJ. Polyether ether ketone encased monolith frits made of polyether ether ketone tubing with a 0.25 mm opening resulting in an improved separation performance in liquid chromatography. J Sep Sci 2016; 39:1799-803. [DOI: 10.1002/jssc.201600040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Revised: 02/12/2016] [Accepted: 02/14/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Sin Young Park
- Department of Chemistry; Inha University; Namku Incheon South Korea
| | - Won Jo Cheong
- Department of Chemistry; Inha University; Namku Incheon South Korea
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Hong SH, Cheong WJ. Disposable microcolumns with welded metal frits. J Sep Sci 2015; 39:243-6. [PMID: 26614222 DOI: 10.1002/jssc.201501055] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2015] [Revised: 10/09/2015] [Accepted: 10/14/2015] [Indexed: 11/06/2022]
Abstract
This study reports the preparation of disposable microcolumns with welded metal frits for the first time. First, the bottom of glass-lined stainless-steel tubing of 30 cm length, 1.6 mm od, and 0.5 mm id was welded with a stainless-steel screen frit of 1.6 mm diameter. A micro-welding machine was used for this. Next, the column was connected to a slurry packer and packed with porous silica particles. Then, the inlet of the column was carefully welded with another frit. The column was tested for separation of a test mix composed of phenol, 2-nitrophenol, acetophenone, aceanilide, and benzamide. Another column of the same physical dimension was also prepared with frits that were not welded to the column. The chromatographic performances of the two groups of columns (welded frits versus non-welded frits) were examined. The columns of welded frits showed ca. 18% better separation efficiency (number of theoretical plates) than those of non-welded frits.
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Affiliation(s)
- Sung Hoon Hong
- Department of Chemistry, Inha University, Incheon, South Korea
| | - Won Jo Cheong
- Department of Chemistry, Inha University, Incheon, South Korea
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Park SY, Cheong WJ. Organic monolith frits encased in polyether ether ketone tubing with improved durability for liquid chromatography. J Sep Sci 2015; 38:2938-44. [PMID: 26097071 DOI: 10.1002/jssc.201500465] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2015] [Revised: 06/01/2015] [Accepted: 06/01/2015] [Indexed: 11/06/2022]
Abstract
This study introduces a preparation method for polymer-encased monolith frits with improved durability for liquid chromatography columns. The inner surface of the polyether ether ketone tubing is pretreated with sulfuric acid in the presence of catalysts (vanadium oxide and sodium sulfate). The tubing was rinsed with water and acetone, flushed with nitrogen, and treated with glycidyl methacrylate. After washing, the monolith reaction mixture composed of lauryl methacrylate, ethylene glycol dimethacrylate, initiator, and porogenic solvent was filled in the tubing and subjected to in situ polymerization. The tubing was cut into thin slices and used as frits for microcolumns. To check their durability, the frit slices were placed in a vial and a heavy impact was applied on the vial by a vortex mixer for various periods. The frits made in the presence of catalysts were found to be more durable than those made without catalysts. Furthermore, when the monolith-incorporated tubing was used as a chromatography column, the column prepared in the presence of catalysts resulted in a better separation efficiency. The separation performance of the columns installed with the polyether ether ketone encased monolith frits was comparable to that of the columns installed with the commercial stainless-steel screen frits.
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Affiliation(s)
- Sin Young Park
- Department of Chemistry, Inha University, Namku, Incheon, South Korea
| | - Won Jo Cheong
- Department of Chemistry, Inha University, Namku, Incheon, South Korea
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Chankvetadze B. Enantioseparations by high-performance liquid chromatography using polysaccharide-based chiral stationary phases: an overview. Methods Mol Biol 2013; 970:81-111. [PMID: 23283772 DOI: 10.1007/978-1-62703-263-6_5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This chapter summarizes the application of polysaccharide-based chiral stationary phases (CSPs) for separation of enantiomers in high-performance liquid chromatography (HPLC). Since this book contains dedicated chapters on enantioseparations using supercritical fluid chromatography (SFC), capillary electrochromatography (CEC), and simulated moving bed (SMB) chromatography, the application of polysaccharide-based materials in these modes of liquid phase separation techniques are touched just superficially. More emphasis is directed toward a discussion of the optimization of polysaccharide-based chiral selectors, their attachment onto the carrier, and the optimization of the support. The optimization of the separation of enantiomers based on various parameters such as mobile phase composition and temperature is also discussed.
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Affiliation(s)
- Bezhan Chankvetadze
- Institute of Physical and Analytical Chemistry, Tbilisi State University, Tbilisi, Georgia.
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Chankvetadze B. Recent developments on polysaccharide-based chiral stationary phases for liquid-phase separation of enantiomers. J Chromatogr A 2012; 1269:26-51. [DOI: 10.1016/j.chroma.2012.10.033] [Citation(s) in RCA: 329] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Revised: 10/11/2012] [Accepted: 10/15/2012] [Indexed: 10/27/2022]
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