Název: Lead soaps in paintings: symptoms and the role of humidity
Autoři: Garrappa, Silvia ; Švarcová, Silvie ; Kočí, Eva ; Hradilová, J. ; Bezdička, Petr ; Hradil, David
Typ dokumentu: Příspěvky z konference
Konference/Akce: Interdisciplinary ALMA Conference /7./, Bratislava (SK), 20191016
Rok: 2020
Jazyk: eng
Abstrakt: In this study, an overview of the symptoms of lead soaps reported in artworks in combination\nwith the study of the role of humidity on the formation of these degradation products have\nbeen thoroughly investigated. The use of optical microscopy, scanning electron microscopy\n(SEM) in combination with Fourier-transform infrared spectroscopy (FTIR) proved to be an\nefficient analytical approach to highlight both the saponified area of artworks’ samples and the\nformation of metal carboxylates within mock-up model systems. Optical microscopy revealed\nto be very useful for the first screening of samples embedded in resin, while SEM helped in\nthe detection and distribution of elements within the cross-sections. On the other hand, FTIR\nmicroscope proved to be a very powerful instrument for high-resolution point measurements\nperformed in the attenuated total reflection mode (ATR) mode with mercury-cadmium-telluride\n(MCT) detector, as well as for chemical imaging of larger area of both artworks’ and mock-up\nsamples performed in the ATR mode with focal plane arrays (FPA) detector. This study provides\nnew useful insights contributing to better understanding of factors affecting the paints‘ stability,\nwhich is neccesary for developing new efficient strategies for preservation and restoration of\nfatty-based painted artworks.
Klíčová slova: egg yolk; humidity; lead soaps; oil; paintings
Číslo projektu: StrategieAV21/6
Poskytovatel projektu: AV ČR
Zdrojový dokument: ACTA ARTIS ACADEMICA 2020 : The Colour Theme, ISBN 978-80-88366-14-0

Instituce: Ústav anorganické chemie AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: http://hdl.handle.net/11104/0320105

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-438867


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav anorganické chemie
Konferenční materiály > Příspěvky z konference