Spectroscopic analyses of Hellenistic painted plasters from 2nd century B.C., Sicily (South Italy)

Abstract In the present work, an analytical characterization of painted plaster samples coming from ancient buildings dated back to 2nd cent. B.C., located in Licata (Sicily, Southern Italy), has been carried out. The investigation has been performed through different spectroscopic techniques: X-ray fluorescence (XRF) using an handheld energy-dispersive XRF analyzer, scanning electron microscopy equipped with an Energy Dispersive Spectrometry microanalysis detector (SEM-EDS) and Fourier transform infrared absorbance spectroscopy (FT-IR). The main goal is to identify the plaster and pigments material. In particular, the XRF investigation of surfaces is the first step for a preliminary elemental characterization. Then, through SEM-EDS measurements, a quantitative analysis of the chemical composition of the plaster and the pigmenting agents along with eventual components related to deterioration processes has been obtained. Finally, FT-IR absorbance spectra have proven to be a useful tool to investigate the molecular nature of the used materials.

[1]  Carlo Bragato,et al.  A short note on Egyptian blue , 2004 .

[2]  Demetrios Anglos,et al.  Pigment analysis in Bronze Age Aegean and Eastern Mediterranean painted plaster by laser-induced breakdown spectroscopy (LIBS) , 2006 .

[3]  A. Kaminska,et al.  Complementary use of the Raman and XRF techniques for non-destructive analysis of historical paint layers , 2009 .

[4]  F. Agnoli,et al.  Analysis of pigments from Roman wall paintings found in Vicenza. , 2003, Talanta.

[5]  Ann Brysbaert.  Painted plaster from Bronze Age Thebes, Boeotia (Greece): a technological study , 2008 .

[6]  M. Mateo,et al.  Characterization of pigments used in painting by means of laser-induced plasma and attenuated total reflectance FTIR spectroscopy , 2009 .

[7]  Lucia Toniolo,et al.  Spectrochemical characterization by micro-FTIR spectroscopy of blue pigments in different polychrome works of art , 1999 .

[8]  M. Schreiner,et al.  Historical pigments: a collection analyzed with X-ray diffraction analysis and X-ray fluorescence analysis in order to create a database , 2003 .

[9]  I. Liritzis,et al.  Archaeometrical analysis of mural paintings made by Spyros Papaloukas (1892-1957) in Amfissa cathedral , 2007 .

[10]  Robin J. H. Clark,et al.  Raman spectroscopic library of natural and synthetic pigments (pre- ≈ 1850 AD) , 1997 .

[11]  E. García-Ruiz,et al.  Characterization of cobalt pigments found in traditional Valencian ceramics by means of laser ablation-inductively coupled plasma mass spectrometry and portable X-ray fluorescence spectrometry. , 2008, Talanta.

[12]  C. Genestar,et al.  Earth pigments in painting: characterisation and differentiation by means of FTIR spectroscopy and SEM-EDS microanalysis , 2005, Analytical and bioanalytical chemistry.

[13]  R. Lopes,et al.  Analysis of paintings from the nineteenth century Brazilian painter Rodolfo Amoedo using EDXRF portable system , 2009 .

[14]  Hauke Kloust,et al.  James Ensor's pigment use: artistic and material evolution studied by means of portable X‐ray fluorescence spectrometry , 2010 .

[15]  U. Schwertmann,et al.  The Iron Oxides: Structure, Properties, Reactions, Occurrences and Uses , 2003 .

[16]  M. F. Gazulla,et al.  Characterization of chromium-containing ceramic pigments by XRF and XRD , 2004 .

[17]  C. Fernández-Lorenzo,et al.  Spectroscopic Study of Egyptian Blue Mixed with Other Pigments , 2003 .

[18]  Paul Thomas Nicholson,et al.  Ancient Egyptian materials and technology , 2001 .

[19]  Michael Doulgeridis,et al.  Pigment identification in paintings employing laser induced breakdown spectroscopy and Raman microscopy , 2001 .

[20]  M. Anjos,et al.  XRF applications in archaeometry : analysis of Marajoara pubic covers and pigments from the sarcophagus cartonage of an Egyptian mummy , 2007 .

[21]  D. Barilaro,et al.  A detailed spectroscopic study of an Italian fresco , 2005 .