| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Carvalho, M. L.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2021Investigation of inks, pigments and paper in four Moroccan illuminated manuscripts dated to the eighteenth centurycitations
- 2019A painter in the shadowcitations
- 2019Josefa d' Óbidos workshop from panel to canvas. Multianalytical approach to materials and technical evolution of the most significant Portuguese painting workshop of the 17 th centurycitations
- 2016Distribution of toxic elements in teeth treated with amalgam using mu-energy dispersive X-ray fluorescencecitations
- 2016Titanate nanotubes sensitized with silver nanoparticles: synthesis, characterization and in-situ pollutants photodegradationcitations
- 2015Microscopy and X-Ray Spectroscopy Analyses for assessment gilding and silvering techniques of Portuguese illuminated manuscriptscitations
- 2015White Spots on Smoke Rings by Bruce Nauman: A Case Study On Contemporary Art Conservation Using Microanalytical Techniquescitations
- 2015Microscopy and Microanalysis of an Extreme Case of Salt and Biodegradation in 17th Century Wall Paintingscitations
- 2015Nondestructive analysis of Portuguese “dinheiros” using XRF: overcoming patina constraintscitations
- 2015A multi-analytical approach to gold in Ancient Egypt: Studies on provenance and corrosioncitations
- 2014Effect of protein adsorption on the corrosion behavior of 70Cu-30Ni alloy in artificial seawatercitations
- 2014The study of marine corrosion of copper alloys in chlorinated condenser cooling circuitscitations
- 2013Pulsed current electrodeposition of Zn-Ag2S/TiO2 nanocomposite films as potential photoelectrodescitations
- 2013The earrings of Pancas treasure: Analytical study by X-ray based techniques-A first approachcitations
- 2012Monitoring by an electrochemical integrated system the corrosion and antifouling treatment on aluminum brass condenser tubescitations
- 2008Pigment characterization and state of conservation of an 18th century fresco in the Convent of S. António dos Capuchos (Estremoz)citations
- 2008Analysis of a coloured Dutch map from the eighteenth centurycitations
Places of action
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article
A multi-analytical approach to gold in Ancient Egypt: Studies on provenance and corrosion
Abstract
Recent results from a three-year multi-disciplinary project on Ancient Egyptian gold jewellery revealed that items of jewellery from the Middle Kingdom to the New Kingdom were manufactured using a variety of alluvial gold alloys. These alloys cover a wide range of colours and the majority contain Platinum Group Elements inclusions. However, in all the gold foils analysed, these inclusions were found to be absent. In this work a selection of gilded wood and leather items and gold foil fragments, all from the excavations by John Garstang at Abydos (primarily from Middle Kingdom graves), were examined using Scanning Electron Microscopy-Energy Disperse Spectroscopy (SEM-EDS), X-Ray Fluorescence (µXRF), Particle Induced X-Ray Emission (µPIXE) and Double Dispersive X-Ray Fluorescence (D²XRF). The work allowed us to characterise the composition of the base-alloys and also to reveal the presence of Pt at trace levels, confirming the use of alluvial gold deposits. Corrosion products were also investigated in the foils where surface tarnish was visually observed. Results showed that the differences in the colour of corrosion observed for the foils are related not only to the thickness of the corrosion layer but also to a multi-layer structure containing the various corrosion products.