Importance of identification of organic colorants in artworks for the assessment of authenticity

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023281%3A_____%2F19%3AN0000038" target="_blank" >RIV/00023281:_____/19:N0000038 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Importance of identification of organic colorants in artworks for the assessment of authenticity

Popis výsledku v původním jazyce

Identification of pigments and dyes is an integral part of the assessment of an artwork’s authenticity. Presence of synthetic organic colorants may be a clue for the determination of the time of origin of the artwork as time of discovery and production of these materials is usually well documented. During the first half of the 20th century most of the commercially important classes of organic colorants were discovered although first organic pigments were synthetized at the end of the 19th century. Phthalocyanine pigments (blue or green) are widely used on artworks – original or fake. Quinacridone reds and arylide yellows were identified on several artwork’s counterfeits. Methods of molecular spectroscopy (infrared and Raman) are convenient for identification of most organic colorants. Both methods could be used non-invasively allowing analysis of artworks (e.g. drawings) where sampling is not possible.

Název v anglickém jazyce

Importance of identification of organic colorants in artworks for the assessment of authenticity

Popis výsledku anglicky

Identification of pigments and dyes is an integral part of the assessment of an artwork’s authenticity. Presence of synthetic organic colorants may be a clue for the determination of the time of origin of the artwork as time of discovery and production of these materials is usually well documented. During the first half of the 20th century most of the commercially important classes of organic colorants were discovered although first organic pigments were synthetized at the end of the 19th century. Phthalocyanine pigments (blue or green) are widely used on artworks – original or fake. Quinacridone reds and arylide yellows were identified on several artwork’s counterfeits. Methods of molecular spectroscopy (infrared and Raman) are convenient for identification of most organic colorants. Both methods could be used non-invasively allowing analysis of artworks (e.g. drawings) where sampling is not possible.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

60500 - Other Humanities and the Arts

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