Alkaline degradation kinetics and CE-separation of cello- and xylooligomers.Part I

摘要

The degradation kinetics of cello- and xylooligomers under alkaline conditions has been studied and kinetic order kinetic rate constants as well as activation parameters (E_A,triangle openE~#,triangle openS~#) for the different oligomers have been determined.The results were corroborated by a mathematical model of the degradation kinetics.A reliable and convenient method for the separation and simultaneous quantification of cello- and xylooligomers, based on capillary electrophoresis (CE) with pre-column derivatization,has been established.p-Aminobenzonitrile was used as the UV tag and 550 mM borate buffer containing hexadimethrine bromide was employed as the running electrolyte.