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Figure 8 | Heritage Science

Figure 8

From: Winsor & Newton original handbooks: a surface-enhanced Raman scattering (SERS) and Raman spectral database of dyes from modern watercolor pigments

Figure 8

Raman analysis of alizarin-based pigments. Raman spectra of (a) reference alizarin compared to examples of Raman spectra obtained from Winsor & Newton alizarin-based pigments from the 20th century edition (λexc = 488 nm): (b) ruby madder (alizarin), (c) scarlet lake, (d) permanent crimson, and (e) violet carmine.

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