Analysis of lipsticks using Raman spectroscopy

Analysis of lipsticks using Raman spectroscopy

Abstract In this study, 80 lipsticks were obtained and evaluated using Raman spectroscopy at excitation wavelengths of 532 and 780 nm. Fluorescence severely limited analysis with the 532 nm line while the 780 nm line proved useful for all samples analyzed. It was possible to differentiate 95% of the...

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Veröffentlicht in:Forensic science international 2013-10, Vol.232 (1), p.67-72
Hauptverfasser: Gardner, P, Bertino, M.F, Weimer, R, Hazelrigg, E
Format: Artikel
Sprache:eng
Schlagworte:
Berries
Chromatography
Color
Cosmetics industry
Federal regulation
Fluorescence
Forensic science
Forensic sciences
Lipstick
Manufacturers
Microscopy
Murders & murder attempts
Pathology
Photodegradation
Product lines
Raman spectroscopy
Smear
Studies
Trace evidence
Trends
Wavelengths
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Beschreibung
Zusammenfassung:Abstract In this study, 80 lipsticks were obtained and evaluated using Raman spectroscopy at excitation wavelengths of 532 and 780 nm. Fluorescence severely limited analysis with the 532 nm line while the 780 nm line proved useful for all samples analyzed. It was possible to differentiate 95% of the lipsticks evaluated based on one or more Raman peaks. However, there were no peak trends observed that could be used to identify a manufacturer or categorize a sample. In situ analysis of lipstick smears was found to be possible even from several Raman active substrates, but was occasionally limited by background fluorescence and in extreme cases, photodegradation.
ISSN:0379-0738
1872-6283
DOI:10.1016/j.forsciint.2013.07.007