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Heritage Science
Fig. 9 | Heritage Science

Fig. 9

From: Analyzing chemical changes in verdigris pictorial specimens upon bacteria and fungi biodeterioration using voltammetry of microparticles

Fig. 9

Voltammetric response of microparticulate deposits of a, b verdigris and c, d un-inoculated verdigris egg tempera paint film (EG@BLANK) attached to graphite bar immersed into 0.25 M HAc/NaAc aqueous buffer, pH 4.75. a, c Negative-going CVs, potential scan rate 50 mV s−1; b negative-going SWV, potential step increment 4 mV, square wave amplitude 25 mV, frequency 5 Hz; d positive going CV, potential scan rate 50 mV s−1

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