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Heritage Science
Fig. 4 | Heritage Science

Fig. 4

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. 4

Cambridge, Fitzwilliam Museum, Marlay Cutting Fr. 5 (a). ER-FTIR spectra collected on the green robe (T1, b), the light blue robe (T2, c), the pink robe (T3, d) and the white wimple (T4, e). Characteristic bands for chalk, natural ultramarine, lead–tin yellow, gypsum and lead white are shown; the pigment’s overtones and/or combination bands are labeled with o(functional group). The blue dashed line in c represent the spectrum of natural ultramarine/GA paintout

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