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Analysis of confiscated fireworks using Raman spectroscopy assisted with SEM-EDS and FTIR

Authors

  • Kepa Castro,

    Corresponding author
    1. Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country, 48080 Bilbao, Spain
    • Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country, P.O.Box 644, 48080 Bilbao, Spain.
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  • Silvia Fdez-Ortiz de Vallejuelo,

    1. Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country, 48080 Bilbao, Spain
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  • Izaskun Astondoa,

    1. Astondoa Piroteknia, 48143 Areatza - Villaro (Bizkaia), Spain
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  • Félix M. Goñi,

    1. Unidad de Biofísica (CSIC-UPV/EHU) and Department of Biochemistry and Molecular Biology, Faculty of Science and Technology, University of the Basque Country, P.O.Box 644, 48080 Bilbao, Spain
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  • Juan Manuel Madariaga

    1. Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country, 48080 Bilbao, Spain
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Abstract

A forensic analysis of several samples of pyrotechnic artefacts was performed by Raman spectroscopy assisted by scanning electron microscopy/energy-dispersive X-ray spectroscopy (SEM-EDS) and Fourier transform infrared (FTIR) analysis. Among the components, several nitrates, ammonium perchlorate, nitrocellulose, metallic titanium particles and shellac were detected. The combination of Raman spectroscopy and SEM-EDS showed very useful performance. All components were detected by Raman spectroscopy except for shellac, kaolinite and titanium particles, which were not conclusive enough and had to be determined by FTIR and EDS. In contrast, many compounds were not detected by FTIR. Copyright © 2011 John Wiley & Sons, Ltd.

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