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Keywords:

  • analytical methods;
  • Leonardo da Vinci;
  • paintings;
  • X-ray fluorescence spectroscopy

Graphical Abstract

Thumbnail image of graphical abstract

Not just a pretty face: Non-invasive X-ray fluorescence spectroscopy was used to reveal the sfumato paint layer stacking method that was used by Leonardo da Vinci to paint the faces in seven of his paintings. A strong diversity in his technique could clearly be seen with this method.