The use of XRF imaging for the chemical discrimination of iron‐gall ink inscriptions: A case study in Stradivari's workshop

Autor: Marie Radepont, Hortense de la Codre, Véronique Rouchon, Oulfa Belhadj, Jean-Philippe Echard, Stéphane Vaiedelich
Přispěvatelé: Cité de la musique-Philharmonie, Musée de la musique, Equipe Conservation Recherche, Musée de la Musique, Cité de la musique-Philharmonie de Paris-Cité de la musique-Philharmonie de Paris, Centre de Recherche sur la Conservation (CRC ), Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)-Ministère de la Culture et de la Communication (MCC), Equipex Patrimex. Grant Number: ANR‐11‐EQPX‐0034, DIM Matériaux anciens et patrimoniaux
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: X-Ray Spectrometry
X-Ray Spectrometry, Wiley, 2020, pp.1-9. ⟨10.1002/xrs.3160⟩
ISSN: 0049-8246
1097-4539
Popis: International audience; X-ray fluorescence (XRF) analysis is a powerful approach to discriminate iron-gall inks from different inscriptions. The representativeness of spot measurements is though often impaired by the material history and conservation stateof historical artefacts bearing such inscriptions. The method proposed here, using a XRF scanner, not only improved the readability of inscriptions, thanks to the enhanced contrast offered by chemical maps, but also allowed the evaluation of iron, copper and zinc contents of the inks, by the optimised selection in MA-XRF maps of more than 1,000 spectra from each inked area, representing an equivalent analytical surface of several square-millimetres. Inaddition, the quantitative calibration of the system based on the thin target approximation allowed calculating these elements concentration. This method, applied to a series of ink inscriptions on a set of artefacts from Stradivari'sworkshop (active from 1666 to 1743) now in the collection of the Musée de la musique (Paris, France), offers a complementary route to the more conventional palaeography- and graphology-based approaches for the potential identification of the authors of the inscriptions.
Databáze: OpenAIRE