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

Autor:	Nicoló Omenetto, James D. Winefordner, E. M. Rodriguez-Celis, Ben W. Smith, José R. Almirall, Igor B. Gornushkin, U. M. Heitmann
Rok vydání:	2008
Předmět:	Chemistry business.industry Spectral mask Biochemistry Glass material Spectral line Analytical Chemistry Characterization (materials science) Optics Fingerprint Sample preparation Laser-induced breakdown spectroscopy Emission spectrum business
Zdroj:	Analytical and Bioanalytical Chemistry. 391:1961-1968
ISSN:	1618-2650 1618-2642
DOI:	10.1007/s00216-008-2104-y
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e882346de394375c60ccaa455980341e https://doi.org/10.1007/s00216-008-2104-y Zobrazit plný text záznamu Plný text ve formátu PDF