Journal
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
Volume 391, Issue 5, Pages 1961-1968Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00216-008-2104-y
Keywords
glass; forensic; laser induced breakdown spectroscopy; correlation analysis; material identification
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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.
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