Research Article
Mid and Near-Infrared Reflection Spectral Database of Natural Organic Materials in the Cultural Heritage Field
Figure 2
FTIR total reflection mode spectra in the near-infrared region of the studied (a) proteinaceous materials, (b) polysaccharide materials, (c) diterpenoid resins, (d) triterpenoid resins, and (e) not (exclusively) terpenoid-based resins.
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