用太赫兹时域光谱技术对防虫防蛀剂进行质量检测  

Quality Testing of Insect Repellents by Terahertz Time Domain Spectroscopy

作　　者：朱守明[1,2] 田璐[2] 赵昆[1,2,3,1] 刘立明[4] 赵国忠[4] 赵卉[2] 

机构地区：[1]中国石油大学(北京)重质油国家重点实验室,北京102249 [2]中国石油大学(北京)理学院,北京102249 [3]中国科学院国际材料物理中心,沈阳110016 [4]首都师范大学物理系,北京100037

出　　处：《现代科学仪器》2011年第2期81-84,共4页Modern Scientific Instruments

基　　金：教育部新世纪优秀人才支持计划(NCET-08-0841);教育部高等学校博士学科点专项基金(200804250006);中国石油大学(北京)前瞻导向基金

摘　　要：太赫兹时域光谱技术可以分辨化合物结构上的微小差异并应用于物质检测与分析,为有机化工产品的鉴别及更宽有效光谱区的测试提供了新的实验方法。本文运用太赫兹时域光谱技术研究了樟脑、对二氯苯和萘三种防虫防蛀剂在太赫兹波段的光学特性。在室温氮气环境中,得到了樟脑、对二氯苯和萘在0.2-2.5THz波段的折射率和吸收谱,样品在此波段的折射率和吸收谱存在显著差异。对二氯苯和萘都有毒性。实验表明,用太赫兹时域光谱技术可以清楚地分辨出三种防虫防蛀剂以及其混合物的折射率和吸收谱的差异,通过判断特征谱线的差异从而判断此种防虫防蛀剂的毒性,此法简单,快速,准确。Terahertz time domain spectra technology can distinguish minor differences in structure, and can be applied to physical testing and analysis. It provides a new experimental method for the identification of the organic chemical products and the study of spectrum more wide. In this paper, the optical property of camphor, santochlor and naphthalene are studied based on the terahertz time domain spectra in the terahertz range At room temperature, the refractive index and the absorption spectrum in the 0.2-2.5 THz region of these samples are obtained in the environment full of nitrogen. Camphor, santochlor and naphthalene have significant different absorption spectra in this wave band. Santochlor and naphthalene are toxic. Experimental results showed that the differences of camphor, santochlor and naphthalene can be detected clearly using terahertz time domain spectra technology and then its quality can be judged. This method is simple, ranid and accurate

关 键 词：太赫兹 樟脑 对二氯苯 萘 防虫防蛀剂 

分 类 号：O433.4[机械工程—光学工程]