Journal Published Online: 01 September 1996
Volume 41, Issue 5

Microreflectance FTIR Techniques Applied to Materials Encountered in Forensic Examination of Documents



Microreflectance Fourier transform infrared spectrometry (FTIR) has been applied to the forensic examination of documents. The materials examined were black printing inks, paper, plastics, photocopy toners, and transfer letters (Letra set). Good discrimination was achieved between different samples of these materials. Euclidean distances were calculated on the bases of first derivatives of measured FTIR reflectance spectra. Some results were compared with those obtained by diffuse reflectance FTIR. Microreflectance FTIR is nondestructive to the materials and may be used as a complement to optical techniques for examination of documents.

Author Information

Andrasko, J
National Laboratory of Forensic Science, SKL, Linköping, Sweden
Pages: 12
Price: $25.00
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Stock #: JFS14003J
ISSN: 0022-1198
DOI: 10.1520/JFS14003J