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Fig. 7 | Heritage Science

Fig. 7

From: Dyes and biological sources in nineteenth to twentieth century ethnographic textiles from Transylvania, Romania

Fig. 7

UV–Vis spectrum, UV chromatogram (255 nm), total ion current (TIC) chromatogram (resulting after single stage full scan MS detection) and ion extracted chromatograms (m/z = 313, 329, 475, 491 a.m.u.) indicating the presence of dcII (flavokermesic acid C glycoside) and carminic acid (as major dyes), together with kermesic and flavokermesic acids (as minor dyes), suggesting Dactylopius coccus (Mexican Cochineal) as dyeing agent for the light red sample 554_P4

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