Fig. 3: Visible images and 2D µ-FTIR distribution maps of the evolution of newly formed lead-based products in LO_PbO sample over a period of ~110 days.
From: Early formation and detection of lead-based products from PbO-oil paint systems
A Visible image and 2D µ-FTIR maps of LO_PbO cured at 60 °C after 0, 7, 42, 84 and 110 days; B Integrated intensity maps calculated over the four regions: a) lead carbonate: ν2(CO3) 824–858 cm−1, b) lead soaps: νas(CO) 1498–1598 cm-1, c) lead hydroxide: ν(OH) 3512–3564 cm-1 and d) LF: νs(C-O) 1324–1362 cm-1, e) ν(CH) unconjugated cis double bonds 2989–3014 cm−1, C Schematic illustration of the detected functional groups.
