Determination of the size and composition of multicomponent ethanol/water droplets by cavity-enhanced Raman scattering

被引：35

作者：

Hopkins, RJ ^{[1
]}

Symes, R ^{[1
]}

Sayer, RM ^{[1
]}

Reid, JP ^{[1
]}

机构：

[1] Univ Birmingham, Sch Chem, Birmingham B15 2TT, W Midlands, England

来源：

CHEMICAL PHYSICS LETTERS | 2003年 / 380卷 / 5-6期

基金：

英国工程与自然科学研究理事会; 英国自然环境研究理事会;

关键词：

D O I：

10.1016/j.cplett.2003.09.048

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：

Cavity-enhanced Raman scattering is used to determine the size and composition of multicomponent ethanol/water droplets in the concentration range 7.5-19% ethanol by volume. Under the experimental conditions presented here, the integrated CERS signal from ethanol shows an exponential increase with increase in ethanol concentration when compared with the integrated intensity of the water band. The calibration is shown to be invariant with particle size over the droplet radius range 20-35 mum. In addition to providing a method for determining particle size and composition, initial studies show that the evaporation dynamics of these multicomponent droplets can be probed by CERS. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：665 / 672

页数：8

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