International Journal of Analytical Chemistry / 2018 / Article / Fig 2

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.
(a)
(b)
(c)
(d)
(e)

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