Characterizing hydration state in solution using terahertz time-domain attenuated total reflection spectroscopy
Characterizing hydration state in solution using terahertz time-domain attenuated total reflection spectroscopy
复制标题
DOI：
10.1016/j.cplett.2008.03.062
复制
发表时间：
2008-05-20
影响因子：
2.8
通讯作者：
Tanaka, Koichiro
中科院分区：
文献类型：
--
作者：
Arikawa, Takashi;Nagai, Masaya;Tanaka, Koichiro
提出了一种利用太赫兹（THz）频段溶液介电响应表征水化状态的新方法。水化状态可以定量评估从复杂的介电函数从理论与局部场校正。我们证明了这种方法在二糖（蔗糖和海藻糖）的水溶液中使用太赫兹时域衰减全反射（TD-ATR）光谱。该方法成功地评估了水化状态及其浓度依赖性，为直接研究皮秒水化动力学提供了一种新的工具。(C)2008 Elsevier B. V.保留所有权利。
We propose a novel method to characterize hydration states from dielectric responses of solutions in terahertz (THz) frequency region. Hydration states can be evaluated quantitatively from a complex dielectric function derived from a theory with a local field correction. We demonstrated this method in disaccharide (sucrose and trehalose) water solutions using the THz time-domain attenuated total reflection (TD-ATR) spectroscopy. The method successfully evaluates the hydration state and its concentration dependence, providing a new tool to investigate the picosecond dynamics of hydration directly. (C) 2008 Elsevier B.V. All rights reserved.