Authors: K Castro P Vandenabeele M D RodríguezLaso L Moens J M Madariaga
Publish Date: 2004/05/05
Volume: 379, Issue: 4, Pages: 674-683
Abstract
Raman microspectroscopy was chosen for analysis and identification of the pigments present in four nineteenthcentury handcoloured lithographs as this technique has several advantages over others for this purpose The possibility of performing completely nondestructive analysis without any sampling is probably one of its most favourable qualities for art analysis Raman spectroscopy can also be used to determine some pigments that cannot be detected using FTIR such as vermilion carbon blacks cadmium pigments etc Among others Prussian blue ultramarine blue carbon black chrome yellow yellow ochre red lead red iron oxide burnt Sienna indigo blue chrome orange phthalocyanine green and some other organic pigments were determined in the specimens The results obtained have led to doubts about the age of the lithographsThis work was partially funded by the project UPV/14590/2002 K Castro is grateful to the Spanish Government MECD for a predoctoral fellowship P Vandenabeele acknowledges the Fund for Scientific Research—Flanders FWOVlaaderen for his postdoctoral fellowship The authors also thank the painter “Txupi” Sanz for letting them analyse the lithographs
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