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Fig. 13 | Heritage Science

Fig. 13

From: Electrochemical assessment of pigments-binding medium interactions in oil paint deterioration: a case study on indigo and Prussian blue

Fig. 13

Square wave voltammograms, after semi-derivative convolution, of sample-modified graphite electrodes in contact with air-saturated 0.25 M HAc/NaAc aqueous buffer at pH 4.75. a 50% wt indigo plus Prussian blue mixture before (green) and after being naturally aged (red) and after accelerated UVA aging (black); b indigo plus Prussian blue paint film specimens before (green) and after being naturally aged (red) and after accelerated UVA aging (black). Voltammograms in conditions such as in Fig. 12

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