Material characterisation of a painted beehive panel by advanced spectroscopic and chromatographic techniques in combination with hyperspectral imaging
Creators
- 1. Institute for the Protection of Cultural Heritage of Slovenia, Conservation Centre, Research Institute, Poljanska 40, 1000 Ljubljana, Slovenia
- 2. Slovene Ethnographic Museum, Metelkova ulica 2, 1000, Ljubljana, Slovenia
- 3. Clyde Hyperspectral Imaging & Technology Limited, Clydebank, UK
- 4. UCL Institute for Sustainable Heritage, 14 Upper Woburn Place, London, WC1H 0NN, UK
- 5. Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, 1000, Ljubljana, Slovenia
Description
In this study, a painted beehive panel from the collection of the Slovene Ethnographic Museum was examined with respect to its material composition with the aim to reveal the painting technique. Due to the state of degradation due to outdoor weathering (UV irradiation, rainfall, extreme temperature and humidity fluctuations), as well as past conservation interventions, the object represented a complex analytical challenge. We aimed for non-invasive techniques (FTIR in reflection mode, Raman spectroscopy and hyperspectral imaging in the range of 400–2500 nm); however, in order to explore paint layers, cross-sections were also analysed using Raman spectroscopy. FTIR spectroscopy in transmission mode and gas chromatography coupled to mass spectrometry were also used on sample fragments. Various original materials were identified such as pigments and binders. The surface coating applied during conservation interventions was also characterised. Additionally, organic compounds were found (oxalate, carboxylate), representing transformation products. The potential use of Prussian blue as a background paint layer is discussed.
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Retko et al_Material characterisation of a painted beehive panel by advanced spectroscopic and chromatographic techniques in combination with hyperspectral imaging.pdf
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Additional details
Related works
- Is identical to
- Journal article: 10.1186/s40494-020-00468-y (DOI)