Fig. 2: FTIR spectra of the nine elephant ivory samples from the BH-001 shipwreck.
From: Ancient waterlogged ivory: tracing its origin through DNA analysis and spectrometric methodologies
Panel (a) shows the region between 1200 and 700 cm⁻¹, emphasising the main phosphate and carbonate vibrational bands of hydroxyapatite. Panel (b) presents the full FTIR spectra of the nine ivory samples (ACO, PHA, BHA_34, BHA_35, BHA_37, BHA_41, BHA_49, BHA_59, and BHA_SR).
