Fig. 10: Raman and FTIR spectra of inks.
From: From fragments to text and ink: a scientific and historical study of an Umayyad Qur’ān
Raman (a) and ER-FTIR (b) spectra of inks from the three fragments. The original reflectance spectra (i) were subjected to KK transformation; the resulting profile is presented here as absorbance (ii).
