Quantitative measurement of mixtures by terahertz time-domain spectroscopy

被引：0
|
作者：
Guifeng Liu
Zengyan Zhang
Shihua Ma
Hongwei Zhao
Xiaojing Ma
Wenfeng Wang
机构：
[1] Chinese Academy of Sciences,Shanghai Institute of Applied Physics
[2] Graduate University of Chinese Academy of Sciences,undefined
来源：
Journal of Chemical Sciences | 2009年 / 121卷
关键词：
THz-TDS; chemical mixture; quantitative analysis; -aminophenol; -nitroaniline;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Terahertz time-domain spectroscopy (THz-TDS) was applied for quantitatively analysing a series of binary mixtures and a ternary mixture. Binary mixtures having different weight ratios of two components, m-aminophenol and m-nitroaniline, were investigated by THz-TDS in the range of 0·3 to 1·5 THz, and it was found that the absorption coefficients of the components in each mixture were linearly proportional to their concentrations in the mixture. The results from analysis were in agreement with actual values with a relative error of less than 7%. The quantitative method will help in the detection of illegal drugs, poisons and dangerous materials that are wrapped or mixed with other materials.
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页码：515 / 520
页数：5
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