The Use of FTIR and Micro-FTIR Spectroscopy: An Example of Application to Cultural Heritage

Figure 4

(a) Thin section analyzed (b) distribution maps of calcite, (c) gypsum, and (d) calcium oxalate obtained by 𝜇-FTIR-ATR. The bright areas indicate regions of high concentration, while dark areas indicate a low concentration.

(a)

(b)

(c)

(d)