Fourier Transform Raman analysis of paint fragments from biodeteriorated Renaissance frescoes

✍ Scribed by H. G. M. Edwards; E. R. Gwyer; J. K. F. Tait

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 560 KB
• Volume: 28
• Category: Article
• ISSN: 0377-0486
• DOI: 10.1002/(sici)1097-4555(199709)28:9<677::aid-jrs159>3.0.co;2-2

✦ Synopsis

The application of Fourier Transform (FT) Raman spectroscopy to three coloured pigment samples and a white pigment from biodeteriorated sixteenth century Italian Renaissance frescoes located at the Palazzo Farnese, Caprarola, Italy, is reported. The samples provide a difficult example for Raman spectroscopic characterization owing to the complexity of the biodeteriorated encrustation, which includes incorporated substratal material and lichen metabolic by-products. Some of the pigments used were identiÐed and the potential of FT-Raman spectroscopy as a means of aiding conservation of such artistic artefacts was demonstrated.