离子液体作为背景电解质的中性碳水化合物的毛细管电泳分析。

Capillary electrophoretic analysis of neutral carbohydrates using ionic liquids as background electrolytes.

机构信息

Institute of Chemistry, Tallinn Technical University, Akadeemia tee, Tallinn, Estonia.

出版信息

Electrophoresis. 2011 Apr;32(9):1068-73. doi: 10.1002/elps.201000575. Epub 2011 Mar 30.

DOI:10.1002/elps.201000575

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.

摘要

在这项研究中，离子液体（ILs）被用作 BGE 添加物，用于 CE 中分析中性碳水化合物。ILs 主要用作间接紫外检测的生色团。研究了基于咪唑的离子液体对未衍生中性碳水化合物的分离、检测限和迁移率的影响。在没有其他添加剂的情况下，BGE 中包含 10-50 mM 的 ILs，pH 值为 12.4，可快速分离中性糖。该方法用于测定某些蔬菜汁中的蔗糖、葡萄糖和果糖。