Faculty of Physics - University of Bucharest

UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS

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2024-11-23 18:33

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Conference: Bucharest University Faculty of Physics 2017 Meeting

Section: Atomic and Molecular Physics. Astrophysics. Applications

Title:

An XRF, XRD, FTIR, FT Raman, digital radiography and UV photography study of some classical pigments, primers and binders used in panel painting

Authors:

Dorina Claudia SAMOILESCU-Sister SERAFIMA(1), Octavian Gheorghe DULIU(2), Maria-Mihaela MANEA(3), Ana-Voica BOJAR(4,5), Constantin COSTEA(6), Daniel BIRGOANU(6), Oana-Claudia BARBU(6)

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Affiliation:

1)University of Bucharest, Faculty of Physics, Doctoral School on Physics,405, Atomistilor str., PO Box MG-11, 077125 Magurele (Ilfov), Romania

2)University of Bucharest, Faculty of Physics, Department of Structure of Matter, Earth and Atmospheric Phyisics and Astrophyisics, 405, Atomistilor str., PO Box MG-11, 077125 Magurele (Ilfov), Romania

3)Horia Hulubei National Institute for Physics and Nuclear Engineering, Centre of Technological Irradiations – IRASM, 30, Reactorului str, P.O. Box MG-06, RO-077125, Magurele (Ilfov), Romania

4)University of Salzburg, Department of Geology and Geodynamics, 34, Hellbrunnerstrasse, 5020 Salzburg, Austria

5)Landesmuseum Johanneum, Natural Sciences, Mineralogy, Weinzottlstrasse, 16, 8045 Graz, Austria

6)Geological Institute of Romania, GeoEcoLab,1, Caransebes str. 012271 Bucharest, Romania

E-mail

samoilescu.claudia@yahoo.com

Keywords:

XRF, XRD, FTIR,FT-Raman, Digital Radiography, Primer, Pigments

Abstract:

In order to evidence at which extent a more noninvasive and less invasive analytical techniques could be used for a complete characterization of panel painting, X-ray Fluorescence (XRF), Fourier Transform Infrared (FT-IR) and Raman (FT-Raman) Spectroscopy, Digital Radiography (DR) and UV Photography (UVP) were used to investigate contactless a panel model painting realized following traditional XVIIIth and XIXth century techniques. Consequently, a chalk primer lime tree panel was painted with tempera paints based on mineral pigments yellow mica (phlogopite), ultramarine, lead white, led minium, ochre and cinnabar as well as with a 20 μm golden foil while the mineralogical composition of each pigment was determined by X-ray diffraction (XRD). XRF and FR-Raman spectroscopy and at a lesser extent DR gave a more complete information regarding the elemental composition of the majority of pigments but the unequivocal identification was done by XRD, able to furnish the mineralogical composition of the pigments. The Digital Radiography allowed a better discrimination of the pigments containing high atomic number elements while FT-IR spectroscopy showed to be useful in identification the organic egg yolk binder, the damar varnish as well as of the chalk primer starting from the vibrational spectrum of different moieties.