Figure 10From: Winsor & Newton original handbooks: a surface-enhanced Raman scattering (SERS) and Raman spectral database of dyes from modern watercolor pigmentsRaman analysis of spectrum red. (a) Raman spectrum of reference Pigment Red 3, or Hansa Scarlet RNC, compared to (b) that of Winsor & Newton spectrum red 20th century edition (λexc = 785 nm).Back to article page