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Application of micro-Raman spectroscopy for fight against terrorism and smuggling

机译：显微拉曼光谱在打击恐怖主义和走私中的应用

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摘要

We report the results of Raman measurements on some common military explosives and explosives precursors deposited on clothing fabrics, both synthetic and natural, in concentration comparable to those obtained from a single fingerprint or mixed with similar harmless substances to detect illegal compounds for smuggling activities. Raman spectra were obtained using an integrated portable Raman system equipped with an optical microscope and a 785-nm laser in an analysis of <1 min. The spectral features of each illicit substance have been identified and distinguished from those belonging to the substrate fabric or from the interfering compound. Our results show that the application of Raman spectroscopy (RS) with a microscope-based portable apparatus can provide interpretable Raman spectra for a fast, in-situ analysis, directly from explosive particles of some μm~3, despite the contribution of the substrate, leaving the sample completely unaltered for further, more specific, and propedeutic laboratory analysis. We also show how the RS is suitable for detecting illegal compounds mixed with harmless substances for smuggling purposes or for counterfeiting activities.
机译：我们报告了一些常见的军用炸药和沉积在服装织物上的炸药前体的拉曼测量结果，包括合成的和天然的，其浓度可与从单个指纹获得的浓度或与类似的无害物质混合的浓度，以检测用于走私活动的非法化合物。使用配备了光学显微镜和785 nm激光的集成便携式拉曼系统在不到1分钟的分析时间内获得拉曼光谱。每种非法物质的光谱特征已被识别，并与属于底物织物或干扰化合物的光谱特征区分开。我们的结果表明，将拉曼光谱（RS）与基于显微镜的便携式设备一起使用，可以提供可解释的拉曼光谱，从而可以直接从大约μm〜3的爆炸性粒子中进行快速原位分析，尽管有底物的影响，保留样品完全不变，以进行进一步，更具体和有义的实验室分析。我们还展示了RS如何适合于检测用于走私或假冒活动的非法化合物与无害物质的混合。

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  • 来源
    《Optical engineering》 |2014年第4期|044113.1-044113.7|共7页
  • 作者

    Salvatore Almaviva; Sabina Botti; Antonio Palucci; Adriana Puiu; Frank Schnuerer; Wenka Schweikert; Francesco Saverio Romolo;

  • 作者单位

    ENEA, Diagnostic and Metrology Laboratory, UTAPRAD-DIM, Via Enrico Fermi 45, Frascati 00044, Italy;

    ENEA, Micro and Nanostructure Laboratory, UTAPRAD-MNF, Via Enrico Fermi 45, Frascati 00044, Italy;

    ENEA, Diagnostic and Metrology Laboratory, UTAPRAD-DIM, Via Enrico Fermi 45, Frascati 00044, Italy;

    ENEA, Diagnostic and Metrology Laboratory, UTAPRAD-DIM, Via Enrico Fermi 45, Frascati 00044, Italy;

    Fraunhofer Institute for Chemical Technology, ICT, Joseph-von-Fraunhofer Strasse 7, Pfinztal76327, Germany;

    Fraunhofer Institute for Chemical Technology, ICT, Joseph-von-Fraunhofer Strasse 7, Pfinztal76327, Germany;

    University of Rome 'La Sapienza,' Medicine and Pharmacy Faculty, via Regina Elena 336, Rome 00161, Italy;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    infrared Raman microscopy; explosives detection; counterterrorism; trace detection; ammonium nitrate;

    机译：红外拉曼显微镜爆炸物检测;反恐痕量检测;硝酸铵;

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