Analysis of oligomeric and monomeric carbohydrates from hydrothermal degradation of cotton-waste materials using HPLC and GPC |
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| Authors: | W Schwald R Concin G Bonn O Bobleter |
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| Institution: | (1) Institute of Radiochemistry, University of Innsbruck, Innrain 52a, 6020 Innsbruck, Austria;(2) Institute of Textile Chemistry and Textile Physics, University of Innsbruck, Achstrasse 1, 6850 Dornbirn, Austria |
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| Abstract: | Summary The hydrolysis of different cotton materials under hydrothermal conditions was investigated. For the analysis of the resulting reaction products high-performance liquid chromatography and gel-permeation chromatography were applied. HPLC columns with ion exchange materials as stationary phases (HPX 87P and Shodex S801) enabled the separation of monomeric sugars and degradation products. Oligomeric sugars were analyzed using a gel column (Bio-Gel P-2) as well as a HPLC column (HPX 42A). Through identification of additional reaction products the mass balance of the hydrolysis can be improved and the analysis of the distribution of the oligomeric sugars gives information for the selection of the reaction conditions. |
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| Keywords: | Hydrolysis high temperature Column liquid chromatography Ion-exchange Cellulose Oligomeric and monomeric sugars |
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