Study of late 18-19th century paintings of "Vienese school" by non-invasive analytical methods

Paintings of two authors of the Vienna school, Johann Baptist Lampi elder and Johann Baptist Lampi younger, have been analysed by combination of non-invasive and microanalytical methods. The most important dissimilarities in pallets of pigments were indicated by mobile XRF. Simultaneous presence of Sb and Sn indicated the use of unusual lead-tin-antimony yellow. This unusual pigment, structure of which was subsequently described by X-ray microdiffraction, was finally the only feature distinguishing the paintings. We concluded that it could be a sign of author’s preference