Table 2 Pigments detected in the painting Nude by SEM–EDS and PLM
Sample | Colour/stratigraphy layer | Location | SEM–EDS detected elementsa | SEM–EDS possible assignment | PLM identification |
|---|---|---|---|---|---|
1 | White | Ground layer | C, O, Ca, Zn, Ba, S, (Na, Cr, Si, Al) | Calcium carbonate, zinc white, barium white | Calcium carbonate, zinc white |
4 | Violet | Violet fabric | C, Zn, O, Na, (Si, Ca, Al, Fe, Ba, S, Cr) | Ultramarine, yellow iron oxide, zinc white, barium white | Ultramarine, yellow iron oxide, organic red |
9 | Blue | Top-right corner | C, Zn, O, Na, Cr, Ba, S, Ca, Si, Al | Ultramarine, viridian, zinc white, barium white | Ultramarine, viridian, zinc white |
11 | Blue | Shadow of the fold | C, O, Ba, Zn, Cr, Na, S, Si, Al, (Ca, Fe, K) | Ultramarine, viridian, yellow iron oxide, zinc white, barium white | Ultramarine, viridian, yellow iron oxide, zinc white |
5 | Green | Bottom-left corner | C, O, Zn, Cr, Ba, Pb, Na, Ca, S, (Si, Al, Fe, Sr) | Viridian, ultramarine, Prussian blue, strontium yellow, zinc white, chrome yellow, possible extenders such as: barium white, gypsum, kaolin or other chrome- containing yellow(s) | Viridian, ultramarine, Prussian blue, strontium yellow, zinc white, chrome yellow |
7 | Green | Curtain | C, O, Zn, Ba, Cr, Na, S, (Sr, Ca, Si, Al) | Viridian, ultramarine, strontium yellow, zinc white, barium white, possible other chrome-containing yellow(s) | Viridian, ultramarine, strontium yellow, zinc white |
21 | Green | Top edge | C, O, Ba, Zn, Cr, Ca, Pb, S, Fe, Si, Na, (Al, Cd, Sr, K) | Viridian, ultramarine, Prussian blue, strontium yellow, zinc white, chrome yellow, possible extenders such as: barium white, gypsum, kaolin or other chrome- containing yellow(s), traces of cadmium yellow | Viridian, ultramarine, Prussian blue, strontium yellow, zinc white, chrome yellow |
23 | Green | Right edge | O, C, Cr, Ba, Zn, Ca, S, (Si, Na, Pb, Fe, Sr, Al) | Viridian, ultramarine, Prussian blue, strontium yellow, zinc white, chrome yellow, possible extenders such as: barium white, gypsum, kaolin or other chrome- containing yellow(s) | Viridian, ultramarine, Prussian blue, strontium yellow, zinc white, chrome yellow |
12 | Yellow | Model’s knee | C, Zn, O, Na, (Si, Fe, Al) | Yellow iron oxide, zinc white | Yellow iron oxide, zinc white |
14 | Brown | Shadow from model’s calf | C, Zn, O, Fe, Na, Si, (Al, Ba, Ca, S, Cr, Pb, Sr, Mg, As) | Brown iron oxide, chrome yellow strontium yellow, bone black | Brown iron oxide, chrome yellow strontium yellow |
6 | Pink | Curtain | C, Zn, O, Na, Ba, (Sr, S, Si, Fe, Pb, Al, Ca, Mg, Cr, Cl) | Strontium yellow, yellow iron oxide, zinc white, barium white, chrome yellow | Organic red, strontium yellow, yellow iron oxide, zinc white, chrome yellow |
16 | Red | Model’s lips | C, O, Ba, S, Sr, Zn, Cl, (Ca, Si, Na, Pb, Fe) | Red iron oxide, strontium yellow, zinc white, barium white | Red iron oxide, organic red, strontium yellow, zinc white |
15 | Black | Model’s hair | C, O, Zn, Si, (Na, Ca, Ba, Fe, Cr, S, P, Al) | Bone black, ultramarine, viridian, yellow iron oxide, zinc white, barium white | Bone black, ultramarine, viridian, yellow iron oxide, zinc white |
