Fig. 7From: Dyes and biological sources in nineteenth to twentieth century ethnographic textiles from Transylvania, RomaniaUV–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_P4Back to article page