Fig. 8From: Analytical studies on commercial artists’ colour charts from Das Deutsche Farbenbuch (1925)—identification of synthetic and natural organic colourants by Raman microscopy, surface-enhanced Raman spectroscopy and metal underlayer ATR-FTIR spectroscopyRaman spectra of Saftgrün gelblich (orange line) and Saftgrün bläulich (green line) vs. Acid Green 1 (magenta line)Back to article page