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On-column isomerization of sugars during high-performance liquid chromatography: analysis of the elution profile
Authors:Takashi Nishikawa  Satomi Suzuki  Hiroaki Kubo and Hideki Ohtani
Institution:

Department of Clinical Pathology, School of Medicine, Kitasato University, 1-15-1, Kitasato, Sagamihara, Kanagawa, Japan

Abstract:Four monosaccharides (glucose, galactose, mannose and fructose) and one disaccharide (maltose) were subjected to high-performance liquid chromatography with UV or refractive index detection. Various profiles such as broad, tailed and splitted peaks were produced, depending on column temperature and eluent flow-rate because these saccharides underwent isomerization. In contrast, greek small letter alpha-methylglucoside, a non-converting derivative, always produced a sharp peak. By analyzing these profiles kinetic constants of the isomerization were obtained and compared with the literature data.
Keywords:
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