Fig. 9From: Infrared chemical mapping of degradation products in cross-sections from paintings and painted objectsLe martyre de Saint-Pierre de Vérone. a Distribution of calcium soaps obtained by integrating the high energy calcium carboxylate peak in the R-FTIR spectrum (1612–1560 cm−1). b Distribution of lead soaps obtained by integrating the lead carboxylate peak in the R-FTIR spectrum (1561–1485 cm−1)Back to article page