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Heritage Science
Fig. 4 | Heritage Science

Fig. 4

From: Revealing the organic dye and mordant composition of Paracas textiles by a combined analytical approach

Fig. 4

a HPLC–DAD (extracted at 450 nm) of the extracts of all the red threads of the sample set (all chromatograms are presented in the same scale, and stacked for the sake of clarity); b HPLC-ESI-Q-ToF extracted ion chromatograms (EIC) of anthraquinones (C15H8O7, C15H8O6, C15H10O5, C14H8O4, C14H8O5, C15H10O4) from the extracts of sample MNAAHP-009. Negative acquisition mode

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