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Fig. 9 | Heritage Science

Fig. 9

From: Understanding and optimizing Evolon® CR for varnish removal from oil paintings

Fig. 9

For all panels the color coding is as following: red for acetone, green for ethanol and blue for isopropanol. a FT-LSI decay times for unvarnished paint models. b FT-LSI decay times for varnished paint models. c Spatially averaged fluorescence measurements after Evolon\(^\circledR\) CR exposure. After all varnish has been removed, fluorescence is still present from the ZnO-LO paint model at an intensity level of 44 (arbitrary units). d UV fluorescence photographs after Evolon\(^\circledR\) CR exposure

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