Figure 7From: Analysis of natural dyes and metal threads used in 16th -18th century Persian/Safavid and Indian/Mughal velvets by HPLC-PDA and SEM-EDS to investigate the system to differentiate velvets of these two cultures Chromatograms and the UV-visible spectra of selected samples dyed with safflower. Chromatograms at 520Â nm (A) and 300Â nm (B) of EDTA extracts from selected samples as examples and from a reference sample dyed with safflower. The UV spectra of the green pile sample of a velvet acc. no. 1972.189 and of the safflower reference sample in the right column.Back to article page