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Heritage Science
Fig. 3 | Heritage Science

Fig. 3

From: Non-invasive identification of paint binders in illuminated manuscripts by ER-FTIR spectroscopy: a systematic study of the influence of different pigments on the binders’ characteristic spectral features

Fig. 3

Comparison between ER-FTIR spectra collected on paintouts containing various pigments bound in gum Arabic (dark cyan spectra), egg white (magenta), egg yolk (red) and whole egg (blue): a lead–tin yellow; b natural ultramarine; c vermilion; d chalk; e lead white; f malachite, with green dashed lines representative of malachite overtones and combination bands. In each spectrum the pigment’s overtones and/or combination bands are labeled with o(functional group)

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