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Heritage Science
Fig. 3 | Heritage Science

Fig. 3

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

Fig. 3

The source used for dyeing the textile, the recipe, and its preservation condition can be identified using molecular excitation and emission spectra, together with a comprehensive database of references and a chemometrics approach. It is important to validate this information further using complementary techniques such as HPLC–DAD–MS

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