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Journal article
Analytical study of the Middle Kingdom group of gold jewellery from tomb 124 at Riqqa, Egypt
The jewellery from tomb 124 at Riqqa, consisting of one pectoral and one winged beetle in gold and cloisonné work, one gold shell pendant decorated with wires and granulation, and one hollow gold amulet in the form of god Min, was analysed by handheld X‐ray fluorescence and scanning electron microscopy...Troalen, Lore ; Guerra, Maria Filomena ; Maitland, Margaret ; Ponting, M ; Price, C
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Journal article
A Raman spectroscopic analysis of pigments from Dynastic Egyptian funerary artefacts
As part of a comprehensive analytical survey, Raman spectra were obtained of pigments from ancient Egyptian funerary artefacts dating from the 17th Dynasty to the Graeco‐Roman period, using several laser excitation wavelengths. A wide colour palette has been identified with mineral pigments and pigment mixtures; several variations were detected with...Edwards, Howell G M ; Jorde Villar, S E ; Eremin, Katherine
Egyptian artefacts, mineral pigments, sarcophagi, and micro‐Raman spectroscopy
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Journal article
The natural constituents of historical textile dyes
The sources and structures of dyes used to colour Western historical textiles are described in this tutorial review. Most blue and purple colours were derived from indigo—obtained either from woad or from the indigo plant—though some other sources (e.g. shellfish and lichens) were used. Reds were often anthraquinone derivatives obtained...Ferreira, Ester S B ; Hulme, Alison N ; McNab, Hamish ; Quye, Anita
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Journal article
Probing the factors which control degradation in museum collections of cellulose acetate artefacts
Cellulose acetate artefacts in museum collections cover a period from the early 1900's to the present day. Conservators have observed that certain of these objects are showing signs of warping, crazing, cracking, discolouration and shrinkage accompanied by a strong smell of acetic acid. Previous studies on cellulose nitrate artefacts show...Ballany, Jane M ; Littlejohn, D ; Pethrick, R P ; Quye, Anita
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Journal article
Analytical studies of the degradation of cellulose nitrate plastics in museums
This paper discusses a project which is examining the degradation of cellulose nitrate artefacts. Several analytical techniques including Fourier transform infrared (FTIR) spectroscopy and ion chromatography have been used to investigate the degradation processes occurring and the various factors influencing the rate of degradation. Accelerated ageing of cellulose nitrate has...Stewart, R ; Littlejohn, D ; Pethrick, R P ; Quye, Anita ; Tennent, N H
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Journal article
Saving our polyesterdays: historical plastics research
Preventing the degradation of materials in museums has always been a challenge. Now plastics in 20th century museum artefacts are presenting a new set of problems.Quye, Anita
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