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Bridged polysilsesquioxane-based wide-bore monolithic capillary columns for hydrophilic interaction chromatography
J. Šesták, D. Moravcová, J. Křenková, J. Planeta, M. Roth, F. Foret,
Jazyk angličtina Země Nizozemsko
Typ dokumentu časopisecké články
- MeSH
- chromatografie kapalinová přístrojové vybavení metody MeSH
- ethan analogy a deriváty chemie MeSH
- hmotnostní spektrometrie s elektrosprejovou ionizací MeSH
- hydrofobní a hydrofilní interakce MeSH
- imunoglobulin G metabolismus MeSH
- lidé MeSH
- methakryláty chemie MeSH
- mikroskopie elektronová rastrovací MeSH
- oligosacharidy analýza izolace a purifikace MeSH
- organické sloučeniny křemíku chemie MeSH
- oxid křemičitý chemie MeSH
- ribonukleasy metabolismus MeSH
- skot MeSH
- trimethylsilylové sloučeniny chemie MeSH
- zvířata MeSH
- Check Tag
- lidé MeSH
- skot MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
The synthesis and characterization of large-bore silica-based monolithic capillary columns (0.32mm×150mm) are presented. Columns were prepared by acidic hydrolysis of a mixture containing tetramethoxysilane (TMOS) and 1,2-bis(trimethoxysilyl)ethane (BTME) in different molar ratios in the presence of polyethylene glycol and urea. The monoliths were modified by zwitterionic monomer [2-(methacryloyloxy)ethyl]-dimethyl-(3-sulfopropyl)-ammonium hydroxide via 3-(trimethoxysilyl)propyl methacrylate. Prepared stationary phases were evaluated by scanning electron microscopy and chromatographic separation of nucleobases and their derivatives in the HILIC mode. The best chromatographic results were obtained with the column prepared from the reaction mixture containing BTME and TMOS in a 1:4 molar ratio. The permeability of such column reached 1.68×10(-14)m(2) and the efficiency, expressed as a height equivalent of the theoretical plate, did not exceed 10.5μm for the tested compounds. The columns were successfully applied to HILIC separation of native and labeled oligosaccharides and glycans released from bovine ribonuclease B and human immunoglobulin G.
Citace poskytuje Crossref.org
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- $a The synthesis and characterization of large-bore silica-based monolithic capillary columns (0.32mm×150mm) are presented. Columns were prepared by acidic hydrolysis of a mixture containing tetramethoxysilane (TMOS) and 1,2-bis(trimethoxysilyl)ethane (BTME) in different molar ratios in the presence of polyethylene glycol and urea. The monoliths were modified by zwitterionic monomer [2-(methacryloyloxy)ethyl]-dimethyl-(3-sulfopropyl)-ammonium hydroxide via 3-(trimethoxysilyl)propyl methacrylate. Prepared stationary phases were evaluated by scanning electron microscopy and chromatographic separation of nucleobases and their derivatives in the HILIC mode. The best chromatographic results were obtained with the column prepared from the reaction mixture containing BTME and TMOS in a 1:4 molar ratio. The permeability of such column reached 1.68×10(-14)m(2) and the efficiency, expressed as a height equivalent of the theoretical plate, did not exceed 10.5μm for the tested compounds. The columns were successfully applied to HILIC separation of native and labeled oligosaccharides and glycans released from bovine ribonuclease B and human immunoglobulin G.
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