Laser induced breakdown spectroscopy as a tool for discrimination of glass for forensic applications

  • E. M. Rodriguez-Celis
  • I. B. Gornushkin
  • U. M. Heitmann
  • J. R. Almirall
  • B. W. Smith
  • J. D. Winefordner
  • N. Omenetto
Original Paper

DOI: 10.1007/s00216-008-2104-y

Cite this article as:
Rodriguez-Celis, E.M., Gornushkin, I.B., Heitmann, U.M. et al. Anal Bioanal Chem (2008) 391: 1961. doi:10.1007/s00216-008-2104-y

Abstract

Materials analysis and characterization can provide important information as evidence in legal proceedings. The potential of laser induced breakdown spectroscopy (LIBS) for the discrimination of glass fragments for forensic applications is presented here. The proposed method is based on the fact that glass materials can be characterized by their unique spectral fingerprint. Taking advantage of the multielement detection capability and minimal to no sample preparation of LIBS, we compared glass spectra from car windows using linear and rank correlation methods. Linear correlation combined with the use of a spectral mask, which eliminates some high-intensity emission lines from the major elements present in glass, provides effective identification and discrimination at a 95% confidence level.

Keywords

GlassForensicLaser induced breakdown spectroscopyCorrelation analysisMaterial identification

Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • E. M. Rodriguez-Celis
    • 1
  • I. B. Gornushkin
    • 1
  • U. M. Heitmann
    • 2
  • J. R. Almirall
    • 3
  • B. W. Smith
    • 1
  • J. D. Winefordner
    • 1
  • N. Omenetto
    • 1
  1. 1.Department of ChemistryUniversity of FloridaGainesvilleUSA
  2. 2.Department of Interface SpectroscopyISAS–Institute for Analytical SciencesBerlinGermany
  3. 3.Department of Chemistry and BiochemistryFlorida International University, University ParkMiamiUSA