Capillary electrophoretic analysis of neutral carbohydrates using ionic liquids as background electrolytes |
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| Authors: | Vaher Merike Koel Mihkel Kazarjan Jana Kaljurand Mihkel |
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| Affiliation: | Institute of Chemistry, Tallinn Technical University, Akadeemia tee, Tallinn, Estonia. merike@chemnet.ee |
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| Abstract: | In this study, ionic liquids (ILs) as BGE additives were applied for the analysis of neutral carbohydrates in CE. The ILs served primarily as chromophores for indirect UV detection. The influence of imidazolium-based ionic liquids on the separation, detection limits and mobility of underivatized neutral carbohydrates was investigated. BGEs consisting of 10-50 mM of ILs at pH 12.4 without other additives provided fast separation of neutral sugars. This method was used to determine sucrose, glucose and fructose in certain vegetable juices. |
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