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Fig. 2 | Heritage Science

Fig. 2

From: A timeline for the introduction of synthetic dyestuffs in Japan during the late Edo and Meiji periods

Fig. 2

SERS spectra of the aniline dyes analyzed in the prints. Spectrum (a) is obtained from a purple area in a print dated 1873. Signals of reference rosaniline/pararosaniline (b) were detected. Spectrum (c) is obtained from a purple area in a print dated 1894. Signals of reference aged methyl/crystal violet (d) or a mixture of MV/CV and rosaniline/pararosaniline were detected

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