其原因为随着温度的升高，附着水排出和羟基结构的缩合。
This was attributed to the loss of water of hydration as well as the condensation of structural hydroxyl groups with increasing temperature.
研究表明，由于具有多酚羟基结构，茶多酚复合体及其单体儿茶素可以有效消除自由基。
Research have shown that the structure of phenolic hydroxyl can effectively dispelling the free radical.
由于气相色谱对H_2的检出灵敏度特高，可作为对菱铁矿中含有羟基结构的微量粘土及其矿物杂质的检测方法，反之亦然。
The gas chromatography has extremely high sensibility to identify H_2, so it is a method to detect siderite which contains micro clays and impurity minerals with OH groups, vice versa.
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