| 利用太赫兹时域光谱鉴别爆炸物2,4-DNT和 2,6-DNT |
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| 引用本文： | LIU Gui-Feng,MA Xiao-Jing,MA Shi-Hua,ZHAO Hong-Wei,MA Ming-Wang,GE Min,WANG Wen-Feng. 利用太赫兹时域光谱鉴别爆炸物2,4-DNT和 2,6-DNT[J]. 中国化学, 2008, 26(7): 1257-1261. DOI: 10.1002/cjoc.200890228 |
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| 作者姓名： | LIU Gui-Feng MA Xiao-Jing MA Shi-Hua ZHAO Hong-Wei MA Ming-Wang GE Min WANG Wen-Feng |
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| 作者单位： | a Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China ;b Graduate University of Chinese Academy of Sciences, Beijing 100049, China ; |
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| 摘 要： | 利用太赫兹时域光谱测得了2,4-DNT和 2,6-DNT在0.3-2.0THz频谱范围的吸收谱和折射谱。借助高斯03程序对2,6-DNT进行结构优化和频率计算。2,6-DNT在1.09, 1.36 and 1.55 THz有三个明显吸收并被归因于分子间的相互作用。本文使用太赫兹光谱法对2,4-DNT和 2,6-DNT混合物做了定量分析。分析的结果与实际值基本一致，相对误差约为8%。
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| 关 键 词： | dinitrotoluene (DNT) THz-TDS quantitative analysis mixture |
| 收稿时间： | 2007-11-27 |
| 修稿时间： | 2008-04-10 |
Identification of Explosives 2,4‐DNT and 2,6‐DNT Using Terahertz Time‐domain Spectroscopy |
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| Gui‐Feng LIU,Xiao‐Jing MA,Shi‐Hua MA,Hong‐Wei ZHAO,Ming‐Wang MA,Min GE,Wen‐Feng WANG. Identification of Explosives 2,4‐DNT and 2,6‐DNT Using Terahertz Time‐domain Spectroscopy[J]. Chinese Journal of Chemistry, 2008, 26(7): 1257-1261. DOI: 10.1002/cjoc.200890228 |
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| Authors: | Gui‐Feng LIU Xiao‐Jing MA Shi‐Hua MA Hong‐Wei ZHAO Ming‐Wang MA Min GE Wen‐Feng WANG |
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| Affiliation: | 1. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China;3. Tel.: 0086‐021‐59554602;4. Fax: 0086‐021‐59553021 |
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| Abstract: | The absorption spectra and refractive index of 2,4‐dinitrotoluene (2,4‐DNT) and 2,6‐dinitrotoluene (2,6‐DNT) were measured in the region of 0.3–2.0 THz by terahertz time‐domain spectroscopy (THz‐TDS) at room temperature. Gaussian 03 program was applied to predict geometric structure and vibrational frequencies of 2,6‐DNT. Three absorption peaks at 1.09, 1.36 and 1.55 THz of 2,6‐DNT were obtained and assigned to intermolecular interactions. Quantitative analysis with THz‐TDS was undertaken for the mixture of 2,4‐DNT and 2,6‐DNT. The analytic weight ratio of 2,4‐DNT to 2,6‐DNT is consistent with the actual one with an analytic error of about 8%. |
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| Keywords: | dinitrotoluene (DNT) THz‐TDS quantitative analysis mixture |
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