ORCID Profile
0000-0003-0613-4352
Current Organisations
TH Köln - University of Applied Sciences
,
Universidade Nova de Lisboa
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Publisher: Wiley
Date: 02-10-2017
DOI: 10.1002/JRS.5256
Publisher: SPIE
Date: 02-07-2009
DOI: 10.1117/12.827511
Publisher: Springer Science and Business Media LLC
Date: 22-02-2016
Publisher: Cambridge University Press (CUP)
Date: 12-2017
DOI: 10.1017/RDC.2017.107
Abstract: The use of accelerator mass spectrometry (AMS) for age determinations of paintings is growing due to decreasing s le size requirements. However, as only the support material is usually dated, the validity of the results may be questioned. This work describes a novel s ling and preparation technique for dating the natural organic binder using radiocarbon ( 14 C) AMS. In the particular case of oil paintings, the natural oil used has a high probability of being representative of the time of creation, hereby circumventing the problem of the originality of the support material. A multi-technique approach was developed for a detailed characterization of all paint components to identify the binder type as well as pigments and additives present in the s le. The technique was showcased on a painting of the 20th century. The results by 14 C AMS dating show that both the canvas and binding medium predate the signed date by 4–5 yr. This could be the time span for keeping painting material in the atelier. The method developed provides, especially given the low amounts of material needed for analysis, a superior precision and accuracy in dating and has potential to become a standard method for oil painting dating.
Publisher: Cambridge University Press (CUP)
Date: 18-10-2018
DOI: 10.1017/RDC.2018.101
Abstract: Lead white is a man-made white pigment commonly used in works of art. In this study, the possibility of radiocarbon dating lead white pigments alone and in oil paints was explored using well-dated lead white pigments and paints. Resulting 14 C ages on lead white pigments produced following the traditional stack process, where carbonate groups results from the incorporation of CO 2 originating from fermentation, matched the production years, while radiocarbon dating of lead white made using other industrial processes indicate that 14 C depleted CO 2 was used in their production. The method was applied to two case studies, where lead carbonate s les were dated in two oil paintings, one Baroque and one from the 20th century. We hereby show that the lead white pigment can be dated by 14 C and used as proxy for the time of creation of an artwork. Additionally, a two-step method was developed to allow 14 C analysis of both the lead white pigment and oil binder from the same s le. A single lead white paint s le can yield two distinct radiocarbon ages, one from the carbonate and one from the natural organic binder. This study thus proposes new strategies for 14 C dating of artworks.
Publisher: Springer Science and Business Media LLC
Date: 23-07-2015
Publisher: Elsevier BV
Date: 2018
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Ester S.B. Ferreira.