Characterizing hydration state in solution using terahertz time-domain attenuated total reflection spectroscopy

被引：139

作者：

Arikawa, Takashi ^{[1
]}

Nagai, Masaya ^{[1
]}

Tanaka, Koichiro ^{[1
]}

机构：

[1] Kyoto Univ, Dept Phys, Grad Sch Sci, Sakyo Ku, Kyoto 6068502, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2008年 / 457卷 / 1-3期

基金：

日本学术振兴会;

关键词：

D O I：

10.1016/j.cplett.2008.03.062

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页码：12 / 17

页数：6

共 39 条

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