Fig. 10
IR peak intensity maps at a 860 cm−1 with baseline between 780 and 1060 cm−1, b ~ 1000 cm−1 with baseline between 780 and 1060 cm−1, c 1100 cm−1 with baseline between 1060 and 1140 cm−1, d 1830 cm−1 with baseline between 1780 and 1860 cm−1, e 940 cm−1 with baseline between 780 and 1060 cm−1, f ~ 1410 cm−1 with baseline between 1250 and 1750 cm−1, g ~ 1520 cm−1 with baseline between 1250 and 1750 cm−1, and h ~ 1640 cm−1 with baseline between 1250 and 1750 cm−1. IR imaging on Fig. 10 is corresponding to the region of interest in Fig. 9