Figure 2 | Scientific Reports

Figure 2

From: Tracking ink composition on Herculaneum papyrus scrolls: quantification and speciation of lead by X-ray based techniques and Monte Carlo simulations

Figure 2

Micro-XRF Pb elemental distribution images on macroscopic (top left, 100 μm step size) to microscopic (bottom left, 1 μm step size) level. Red (P) Green (Al) Blue (S) images are displayed in the centre for different zoom modes (top right: 10 μm step size, bottom right: 1 μm step size) to display the co-localization of Al, P and S with Pb. Pb-P and Pb-S correlation plots are displayed to the right to show the correlation of Pb with P and partial correlation with S.

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