Problems of Forensic Sciences 2001 Vol. 46 (XLVI) 437-441
SURFACE ENHANCED RESONANCE RAMAN SCATTERING (SERRS) SPECTROSCOPY – STUDY ON INKS
Emma WAGNER, Simon CLEMENT
Foster and Freeman Ltd, Evesham, United Kingdom
Streszczenie
Surface Enhanced Resonance Raman Scattering (SERRS) spectroscopy can overcome many of the limitations of conventional Raman spectroscopy in ink analysis, specifically dominant fluorescence and weak Raman signals. In this study we show how, with the SERRS technique, we could obtain detailed spectra from ink samples that were weak Raman scatterers or exhibited dominant levels of fluorescence when analysed previously. Further to this, it was possible to differentiate samples based on their SERRS spectra that could not be otherwise discriminated with conventional infrared techniques (e.g. VSC).
Słowa kluczowe
Raman spectroscopy; SERRS; Ink; Toner; Questioned documents.