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首页> 外文学位 >Characterization of explosive energetic components in cotton fiber using Raman microscopy.
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Characterization of explosive energetic components in cotton fiber using Raman microscopy.

机译：使用拉曼显微镜表征棉纤维中的爆炸性高能成分。

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摘要

An explosive is a chemical compound with the capability to produce enormous amounts of energy in a short period of time. The plastic explosives Semtex-H and C-4 are easy to conceal and difficult to detect. Based on this, it is necessary to improve available detection techniques used to identify and classify these explosives. Raman microscopy technique was applied in order to obtain a complete structural data without a complex procedure of sample preparation. The Raman microscopy analysis was performed for Semtex-H and C-4 explosives deposited on cotton fiber using the Dry Transfer method. One of the most remarkable characteristics of this methodology is the capability to identify and characterize the explosive with minimal interference from the matrix. The results demonstrated the efficiency of Raman microscopy to identify the explosive in common cotton fiber. The analysis revealed the characteristic vibrational bands of both Semtex-H (871, 1041, and 1291 cm-1 for PETN; and 885 and 1216 cm-1 for RDX) and C4 (884 and 1215 cm -1). The Dry Transfer method was efficient in characterizing the explosive components present on the cotton fiber. Moreover, the results obtained allow for the possibility to applying this fiber-explosives methodology at the FAA security checkpoint employing portable Raman systems.
机译：爆炸物是一种化合物，能够在短时间内产生大量能量。塑料炸药Semtex-H和C-4易于隐藏且难以发现。基于此，有必要改进用于识别和分类这些爆炸物的可用检测技术。拉曼显微镜技术的应用是为了获得完整的结构数据，而无需复杂的样品制备程序。使用干转移法对沉积在棉纤维上的Semtex-H和C-4炸药进行了拉曼显微镜分析。这种方法最显着的特征之一就是能够以最小的基质干扰识别和鉴定炸药。结果证明了拉曼显微镜鉴定普通棉纤维中爆炸物的效率。分析显示了Semtex-H（PETN为871、1041和1291 cm-1； RDX为885和1216 cm-1）和C4（884和1215 cm -1）的特征振动带。干转移法有效地表征了棉纤维上存在的爆炸性成分。此外，获得的结果使得有可能在采用便携式拉曼系统的FAA安全检查站中应用这种光纤爆炸方法。

著录项

  • 作者

    Nieves-Marrero, Carlos Alberto.;

  • 作者单位

    University of Puerto Rico, Mayaguez (Puerto Rico).;

  • 授予单位 University of Puerto Rico, Mayaguez (Puerto Rico).;
  • 学科 Chemistry Analytical.;Chemistry Physical.
  • 学位 M.S.
  • 年度 2001
  • 页码 54 p.
  • 总页数 54
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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