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

被引：6

作者：

Blanco, A ^{[1
]}

Mina, N ^{[1
]}

Castro, ME ^{[1
]}

Castillo-Chará, J ^{[1
]}

Hernández-Rivera, SP ^{[1
]}

机构：

[1] Univ Puerto Rico, Dept Chem, Ctr Chem Imaging, Ctr Chem Sensors Dev Explos, Mayaguez, PR 00681 USA

来源：

DETECTION AND REMEDIATION TECHNOLOGIES FOR MINES AND MINELIKE TARGETS IX, PTS 1 AND 2 | 2004年 / 5415卷

关键词：

landmines; explosives; DNT; Raman Spectroscopy; landmine signatures; crystallization;

D O I：

10.1117/12.542870

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Raman Spectroscopy is a well established tool for vibrational spectroscopy analysis. Interactions of explosives with different substrates can be measured by using quantitative vibrational signal shift information of scattered Raman light associated with these interactions. A vibrational spectroscopic study has been carried out on 2,4-DNT and 2,6-DNT crystals. Raman Microscopy spectrometers equipped with 514 nm and 785 nm laser excitation lines were used. The samples were recrystallized on different solvents (water, methanol and acetonitrile) and allowed to interact with soil samples. The interaction with sand and soil samples doped with the nitroaromatic compounds showed significant shifts in its peaks. The above information was used to detect DNT in soil using Raman Microscopy. These results will make possible the development of highly sensitive sensors for detection of explosives materials.

引用

页码：1357 / 1366

页数：10