Retention behavior of monosaccharides and disaccharides on titania
Retention behavior of monosaccharides and disaccharides on titania
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DOI：
10.1007/bf02492416
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发表时间：
2003-03
期刊：
影响因子：
1.7
通讯作者：
K. Tani;M. Kitada;M. Tachibana;H. Koizumi;T. Kiba
中科院分区：
文献类型：
--
作者：
K. Tani;M. Kitada;M. Tachibana;H. Koizumi;T. Kiba
先前发现二氧化钛识别羟基位置的能力是由于钛离子与2-羟基羧酸的羟基和羧酸根阴离子的两个氧原子之间形成螯合环。我们研究了二氧化钛如何识别单糖和二糖的羟基位置。单糖和双糖在二氧化钛上的保留行为具有一定的特征。因此，蔗糖比其他糖洗脱得快得多，而D-核糖、D-果糖和L-山梨糖在所有测试的糖中最强烈地保留在二氧化钛上。很明显，强烈保留在二氧化钛上的糖具有轴向羟基或相同构象的相邻羟基。
The ability of titania to recognize the position of hydroxyl groups was previously found to result from the formation of a chelate ring between a titanium ion and the two oxygen atoms of the hydroxyl group and carboxylate anion of 2-hydroxycarboxylic acids. We investigated how titania could recognize the position of hydroxyl group of monosaccharides and disaccharides. The retention behavior of monosaccharides and disaccharides on titania was found to be characteristic. Thus, sucrose was eluted much faster than the other sugars, whereas D-ribose, D-fructose and L-sorbose were most strongly retained on titania of all of the sugars tested. It is apparent that the sugars strongly retained on titania have an axial hydroxyl group or neighboring hydroxyl groups of the same conformation.