Identification of explosives 2,4-DNT and 2,6-DNT using terahertz time-domain spectroscopy

被引：14

作者：

Liu Gui-Feng ^{[1
,2
]}

Ma Xiao-Jing ^{[1
]}

Ma Shi-Hua ^{[1
]}

Zhao Hong-Wei ^{[1
]}

Ma Ming-Wang ^{[1
,2
]}

Ge Min ^{[1
,2
]}

Wang Wen-Feng ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

来源：

CHINESE JOURNAL OF CHEMISTRY | 2008年 / 26卷 / 07期

关键词：

dinitrotoluene (DNT); THz-TDS; quantitative analysis; mixture;

D O I：

10.1002/cjoc.200890228

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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%.

引用

页码：1257 / 1261

页数：5

共 24 条

[1] Temperature-dependent far-infrared spectra of single crystals of high explosives using terahertz time-domain spectroscopy [J].

Barber, J ;

Hooks, DE ;

Funk, DJ ;

Averitt, RD ;

Taylor, AJ ;

Babikov, D .

JOURNAL OF PHYSICAL CHEMISTRY A, 2005, 109 (15) :3501-3505

[2] Spectroscopic investigation of the spectroscopic signatures of 2,4-DNT and 2,6-DNT their interactions with sand particles [J].

Blanco, A ;

Mina, N ;

Castro, ME ;

Castillo-Chará, J ;

Hernández-Rivera, SP .

DETECTION AND REMEDIATION TECHNOLOGIES FOR MINES AND MINELIKE TARGETS IX, PTS 1 AND 2, 2004, 5415 :1357-1366

[3] THz spectroscopic investigation of 2,4-dinitrotoluene [J].

Chen, YQ ;

Liu, HB ;

Deng, YQ ;

Schauki, D ;

Fitch, MJ ;

Osiander, R ;

Dodson, C ;

Spicer, JB ;

Shur, M ;

Zhang, XC .

CHEMICAL PHYSICS LETTERS, 2004, 400 (4-6) :357-361

[4]

Chen YQ, 2003, PROG NAT SCI-MATER, V13, P771, DOI 10.1080/10020070312331344410

[5] A theoretical study of the structure and vibrations of 2,4,6-trinitrotolune [J].

Clarkson, J ;

Smith, WE ;

Batchelder, DN ;

Smith, DA ;

Coats, AM .

JOURNAL OF MOLECULAR STRUCTURE, 2003, 648 (03) :203-214

[6] Terahertz reflection spectroscopy for explosives detection [J].

Fitch, MJ ;

Dodson, C ;

Chen, YQ ;

Liu, HB ;

Zhang, XC ;

Osiander, R .

TERAHERTZ FOR MILITARY AND SECURITY APPLICATIONS III, 2005, 5790 :281-288

[7] THz spectroscopy of explosives and related compounds [J].

Fitch, MJ ;

Schauki, D ;

Dodson, C ;

Osiander, R .

TERAHERTZ FOR MILITARY AND SECURITY APPLICATIONS II, 2004, 5411 :84-91

[8] Terahertz absorption measurement for gas-phase 2,4-dinitrotoluene from 0.05 THz to 2.7 THz [J].

Foltynowicz, Robert J. ;

Allman, Ronald E. ;

Zuckerman, Eric .

CHEMICAL PHYSICS LETTERS, 2006, 431 (1-3) :34-38

[9]

Frisch M.J., 2004, Gaussian 03

[10]

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