Fig. 7From: The artists’ materials of P. S. Krøyer: An analytical study of the artist’s paintings and tube colours by Raman, SEM–EDS and HPLCDetail of cross section S7 from Drachmann depicted in polarised light (left) and in UV light (right). The light blue paint layer (2) above the isolation layer (1) and ground layer (0) contains mainly zinc white and cobalt blue. Due to the presence of zinc white, the paint layer fluoresces when exposed to UV lightBack to article page