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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Bezdicka, Petr Hradilová, Janka Svarcová, Silvie Cermáková, Zdenka Hradil, David |
| Description | Author Affiliation: Svarcová S ( Institute of Inorganic Chemistry of the AS CR, v.v.i., ALMA Laboratory, Husinec-Rez 1001, 250 68 Rez, Czech Republic. Electronic address: svarcova@iic.cas.cz.); Cermáková Z ( Institute of Inorganic Chemistry of the AS CR, v.v.i., ALMA Laboratory, Husinec-Rez 1001, 250 68 Rez, Czech Republic); Hradilová J ( Academy of Fine Arts in Prague, ALMA Laboratory, U Akademie 4, 170 22 Praha 7, Czech Republic. Electronic address: hradilovaj@volny.cz.); Bezdicka P ( Institute of Inorganic Chemistry of the AS CR, v.v.i., ALMA Laboratory, Husinec-Rez 1001, 250 68 Rez, Czech Republic); Hradil D ( Institute of Inorganic Chemistry of the AS CR, v.v.i., ALMA Laboratory, Husinec-Rez 1001, 250 68 Rez, Czech Republic) |
| Abstract | An unambiguous identification of pigments in paint layers of works of art forms a substantial part of the description of a painting technique, which is essential for the evaluation of the work of art including determination of the period and/or region of its creation as well as its attribution to a workshop or an author. Copper pigments represent a significant group of materials used in historic paintings. Because of their substantial diversity and, on the other hand, similarity, their identification and differentiation is a challenging task. An analytical procedure for unambiguous determination of both mineral-type (azurite, malachite, posnjakite, atacamite, etc.) and verdigris-type (copper acetates) copper pigments in the paint layers is presented, including light microscopy under VIS and UV light, electron microscopy with elemental microanalysis, Fourier transformed infrared micro-spectroscopy (micro-FTIR), and X-ray powder micro-diffraction (micro-XRD). Micro-Raman measurements were largely hindered by fluorescence. The choice of the analytical methods meets the contemporary requirement of a detailed description of various components in heterogeneous and minute samples of paint layers without their destruction. It is beneficial to use the combination of phase sensitive methods such as micro-FTIR and micro-XRD, because it allows the identification of both mineral-type and verdigris-type copper pigments in one paint layer. In addition, preliminary results concerning the study of the loss of crystallinity of verdigris-type pigments in proteinaceous binding media and the effect of lead white and lead tin yellow as highly absorbing matrix on verdigris identification in paint layers are reported. |
| ISSN | 13861425 |
| Volume Number | 132 |
| e-ISSN | 18733557 |
| Journal | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2014-11-11 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Copper Analysis Laboratories Paint Paintings Spectrum Analysis, Raman Animals Spectroscopy, Fourier Transform Infrared X-ray Diffraction Journal Article Research Support, Non-u.s. Gov't Discipline Spectroscopy |
| Content Type | Text |
| Resource Type | Article |
| Subject | Spectroscopy Atomic and Molecular Physics, and Optics Analytical Chemistry Instrumentation |
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