Synthetic organic colorants in the assessment of an artwork’s authenticity

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023281%3A_____%2F19%3AN0000032" target="_blank" >RIV/00023281:_____/19:N0000032 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.uva.nl/en/shared-content/faculteiten/en/faculteit-der-geesteswetenschappen/events/conferences/2019/11/dyes-in-history-and-archaeology.html?1583395390984" target="_blank" >https://www.uva.nl/en/shared-content/faculteiten/en/faculteit-der-geesteswetenschappen/events/conferences/2019/11/dyes-in-history-and-archaeology.html?1583395390984</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Synthetic organic colorants in the assessment of an artwork’s authenticity

Popis výsledku v původním jazyce

Scientific analysis, including identification of pigments and dyes, is an integral part of the assessment of an artwork’s authenticity. The presence of materials produced after expected time of origin gives a sign that the artwork is suspicious at least. First organic pigments were synthetized in the late 19th century and more commercially important classes were discovered throughout the 20th century. Raman and infrared spectroscopy are suitable methods for identification of most organic colorants. Phtalocyanine pigments are quite often found on fake artworks however other pigments like quinacridone reds and arylide yellows were identified as well. Nevertheless, sample analysis showed wide range of organic colorants applied on the original artworks from the first half of the 20th century too. Therefore, unambiguous identification is necessary for correct assessment of the authenticity.

Název v anglickém jazyce

Synthetic organic colorants in the assessment of an artwork’s authenticity

Popis výsledku anglicky

Scientific analysis, including identification of pigments and dyes, is an integral part of the assessment of an artwork’s authenticity. The presence of materials produced after expected time of origin gives a sign that the artwork is suspicious at least. First organic pigments were synthetized in the late 19th century and more commercially important classes were discovered throughout the 20th century. Raman and infrared spectroscopy are suitable methods for identification of most organic colorants. Phtalocyanine pigments are quite often found on fake artworks however other pigments like quinacridone reds and arylide yellows were identified as well. Nevertheless, sample analysis showed wide range of organic colorants applied on the original artworks from the first half of the 20th century too. Therefore, unambiguous identification is necessary for correct assessment of the authenticity.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10406 - Analytical chemistry

Projekt

<a href="/cs/project/VI20172020050" target="_blank" >VI20172020050: Komplexní instrumentální metodika pro posuzování pravosti výtvarných děl, databáze materiálů barevných vrstev 20. století</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

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