Skip to main content
Fig. 10 | Heritage Science

Fig. 10

From: Deep eutectic solvents: green solvents for the removal of degraded gelatin on cellulose nitrate cinematographic films

Fig. 10

FTIR spectra. Each figure shows: µATR-FTIR of the gelatin residues covering each area before cleaning (A, dashed line), a representative µATR of the film surface once cleaned (B, black), µATR-FTIR of an unplasticized CN standard (C, dark gray) and the reference RAS-FTIR of each DES employed (D, light gray: I. ChCl:EG; II. B:EG; III. B:U). Diagnostic FTIR bands due to the CN base and its plasticizer are accompanied with a blue circle; the one due to gelatin presence shows a magenta diamond, and the peaks attributable to DES presence are highlighted with green triangles

Back to article page