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Heritage Science
Fig. 6 | Heritage Science

Fig. 6

From: Early modern knitted caps (fifteenth to sixteenth centuries): analyzing dyes in archaeological samples using microspectrofluorimetry complemented by HPLC–MS

Fig. 6

Excitation (left spectrum) and emission (right spectrum) of the four types of red dyes found in the six samples, compared with known reds identified in Andean textiles: RED1 (1981.10, black) and MFA 21.2581 (magenta); RED2 (742, black) and MFA 10.267 (red); RED3 (22389, black) and MFA 31.499 (magenta); and RED4 (D10318). The colors in the spectra match the aluminum ion complexes of purpurin (magenta) and cochineal (red)

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