Quantification of mercury in XVIII century books by Energy Dispersive X-Ray Fluorescence (EDXRF)

Carvalho, Luísa; Manso, Marta; Pessanha, Sofia; Guilherme, A.; Ferreira, Fernando Rodrigues

doi:10.1016/j.culher.2008.11.003

Cited by 9 publications

(3 citation statements)

References 17 publications

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“…Limits of detection were claimed to be 0.007 mg g À1 As and 0.006 mg g À1 Hg. A group from the University of Lisbon described the quantification of Hg in the ink used to colour some eighteenth century books by EDXRF, 327 highlighting for the first time, it was claimed, the hazard to restorers, conservators and collectors. The group extended this work to include a SRXRF microprobe and portable XRF study of the pigment vermillion in books from the eighteenth and nineteenth centuries and although high concentrations of Hg were found in the coloured borders of the books, no diffusion was observed to the inner parts of the paper.…”

Section: Archaeological Cultural Heritage and Forensicmentioning

confidence: 99%

Atomic spectrometry update–X-ray fluorescence spectrometry

West

Ellis

Potts

et al. 2010

J. Anal. At. Spectrom.

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Section: Archaeological Cultural Heritage and Forensicmentioning

confidence: 99%

Atomic spectrometry update–X-ray fluorescence spectrometry

West

Ellis

Potts

et al. 2010

J. Anal. At. Spectrom.

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“…In this list, XRF is a versatile technique that combines a non‐destructive, well‐established technique, with high analytical sensitivity that allows simultaneous multi‐elemental analysis with low cost and simple instrumentation. Thus, the technique is particularly suitable for archaeological studies where the characterization of materials or process is specially important . In recent years, the use of pXRF has increased in museums, churches and excavations due to its portability …”

Section: Introductionmentioning

confidence: 99%

Thickness determination of gold layer on pre‐Columbian objects and a gilding frame, combining pXRF and PLS regression

et al. 2016

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In conservation, restoration and characterization studies of art and archaeological objects, the improvement of analytical techniques is a tendency. X-ray fluorescence (XRF) is a versatile technique, and it has been widely used in the last decades for characterization of a great variety of materials (metals, glass, paints, inks, ceramics, etc.) applied to cultural heritage studies. Besides the chemical composition, it is possible to infer the layer thickness through XRF, enabling a general knowledge of the manufacturing techniques implemented by the culture of origin, as well as the association with the technological level reached for the production of each kind of artefact. The aim of this study is to introduce an alternative way for gold thickness determination of coatings in cultural heritage objects, combining portable XRF data and partial least square regression. As a case of study, we present the use of this methodology in portable XRF measurements performed in situ on a gilding frame in Brazil and in two pre-Columbian artefacts from Chavin culture in Peru. Gold layers with thicknesses determined by Rutherford backscattering spectrometry (RBS) were used as standards to perform a calibration model and to check the methodology before its application to unknown artefacts.

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“…X-ray techniques for the determination of pigments in historical artworks are a notable theme, 96,97 as is the analysis of metals in pigments. 98 The analysis of artworks in the Kunsthistorisches Museum in Vienna has been greatly facilitated by the development of an XRF spectrometer which has been specifically adapted for this purpose. 99 This portable focused-beam XRF instrument was designed and manufactured to take into account the large variation in sample shape and size of museum objects, and was equipped with a vacuum chamber enclosed with a polyimide film (Kapton) window, allowing the detection of elements as low in mass as Na.…”

Section: 21mentioning

confidence: 99%