Pigments nad their testimony

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00007064%3AK01__%2F23%3AN0000031" target="_blank" >RIV/00007064:K01__/23:N0000031 - isvavai.cz</a>

Result on the web

<a href="https://iafs2023.com.au/" target="_blank" >https://iafs2023.com.au/</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Pigments nad their testimony

Original language description

třístránkový článek v konferenčním sborníku, který není ve WOS Turková I., Kotrlý M., Šefců Š., Antušková V., Šulcová P.: Pigments nad their testimony. 23rd Triennial Meeting of International Association of Forensic Sciences (IAFS) in conjunction with the 26th Symposium of the Australian & New Zealand Forensic Science Society (ANZFSS) – book of abstracts. p. 256-258, Sydney, 2023 For art dealers, forgeries are of a big concern – buying a fake painting means a 100% lost investment. Not only investigators are interested in the forgery cases. They attract also the general public attention. Besides, forgery of works of art is a crime. Most fake artworks are detectable. Used pigments serve as one of the good "witnesses" to estimate when the work was made. Basic analytical methods to examine pigment samples taken from a questioned painting include optical microscopy, electron microscopy and microanalysis (SEM/EDS). Information about pigments is usually supplemented by X-ray diffraction, Raman spectroscopy, Infrared spectroscopy and X-ray of a work of art. One of the good "witnesses" of the dating of the creation of the work are the pigments used. Titanium white is one of the remarkable ones. In Europe, titanium white with an anatase structure started to be produced in 1918. To the art market, it was introduced in 1925 by the French company Société Bourgeois. A rutile modification of titanium white did not reach the market until after 1940. Although both are tetragonal structures, the rutile modification has a tighter structure, and this fact results in a more saturated whiteness. Naples yellow is also a very specific pigment used in painting. It is one of the oldest synthetic pigments. Naples yellow has been used in fine arts from the 17th-18th centuries, when it replaced the lead yellow that had been widespread until then. We can find it in two mineral modifications: Pb2Sb2O7 (bindheimite) or PbSb2O6 (rosiaite). According to estimations of some curators, not only the Czech but also the world art market is infested with fakes. With few exceptions, experts manage to detect them before they even reach an auction. Not only investigators are interested in the forgery cases. They attract also the general public attention. A unique cooperation of the Institute of Criminalistics of the Police of the Czech Republic, the National Gallery in Prague and specialists from the University of Pardubice strengthens and significantly advances the possibilities of using specialized procedures and methods in the detection of forgeries in the field of fine art and, at the same time, helps clarify forgery procedures.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

50902 - Social sciences, interdisciplinary

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů