Technical examination and restoration of a ceremonial shield from the Solomon Islands

Kenndler, Ernst; Mairinger, Franz; Bauer, W.; Rainer, Francisc I.; Schmidt-Beiwl, Karin

doi:10.1179/sic.1988.33.3.115

Cited by 4 publications

(1 citation statement)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Interestingly, the present pattern of the long-chain fatty acids strongly resembles the analysis we have obtained from a sample taken from a shield from the Solomon Islands [45] originating from the 19th century. In these samples, the main constituent also was 18:1, accompanied by unsaturated 18:2 and 18:3 in smaller proportions together with 18:0 and 16:0.…”

Section: Identification Of the Binding Medium From A Paint Layer Of Asupporting

confidence: 49%

Identification of drying oils in mixtures of natural binding media used for artistic and historic works by capillary electrophoresis

Harrison

Kaml

Rainer³

et al. 2005

J of Separation Science

View full text Add to dashboard Cite

To characterise the technologies and to find the appropriate treatments, the identification of the binding media of artistic and historic objects is of high importance for the restorer and conservator. Often applied together with other binders, in the present paper, the applicability of a CZE method was ascertained for the identification of the constituents of drying oils in mixtures with animal glues and/or plant gums. The drying oils are identified after alkaline hydrolysis due to their content of long-chain saturated and unsaturated fatty acids (palmitic, stearic, oleic, linoleic, linolenic) and shorterchain dicarboxylic acids (pimelic, suberic, azelaic, sebacic). The dicarboxylic acids occur as products of the unsaturated acids by oxidative degradation during the drying process. The possible interferences in CE caused by the other binders are amino acids and/or monosaccharides. Such interferences could be expected as indirect UV detection has to be used, which is highly unspecific. It was found that none of the constituents of the animal glues or plant gums migrate in the time window of the analytes, thus not obstructing the identification of the analytes in any of the oil mixtures with one binder, or with a combination of both. No interference is observed even in excess of the glues. The method was applied for the identification of a drying oil in a paint layer from a ceremonial mask originating from Papua New Guinea. There is evidence that the oil is most probably from candlenut tree (Aleurites moluccana).

show abstract

Section: Identification Of the Binding Medium From A Paint Layer Of Asupporting

confidence: 49%

Identification of drying oils in mixtures of natural binding media used for artistic and historic works by capillary electrophoresis

Harrison

Kaml

Rainer³

et al. 2005

J of Separation Science

View full text Add to dashboard Cite

show abstract

Destructuring a shield to rebuild the history: The case of the painted wooden shield from the battle of Lepanto in Marino (Rome, Italy)

Iorio,

Graziani,

Ruggiero

et al. 2024

Archaeometry

View full text Add to dashboard Cite

A painted wooden shield from the 16th century, commonly traced back to the famous Lepanto Battle (1571), was investigated by a multi‐analytical approach to identify its manufacturing process and shed light on its cultural provenance. The typology is coherent with both the Christian and Ottoman armies and does not allow for an attribution. Radiocarbon dated the shield to two time intervals (1470–1525, 1580–1625, at 68% level of probability), compatible with the date of the Battle of Lepanto. Optical and Scanning Electron Microscopy, Attenuated Total Reflectance, External Reflection Fourier Transform Infrared, micro‐Raman and Energy Dispersive X‐ray Spectroscopy, and histochemical and shrinking temperature tests were used to characterize the artefact. The shield resulted to be made of softwood panels, covered by a stratigraphy of flax fibres, cattle skin, and a painting preparation layer of hydromagnesite. Adhesion was ensured by bone glue. Oblique, red, and cinnabar stripes alternating on the white preparation are visible on the front of the shield, whereas a homogeneous dark paint covers the back. None of the raw materials was informative by themselves, but the unusual presence of the hydromagnesite could be crossed with the geographical context, resulting in a promising outcome for future isotopic and trace element studies.

show abstract

Capillary Electrophoresis: An Alternative to Chromatography for Analysis of Natural Organic Binders

Mazanek¹,

Kaml²,

Kenndler³

2006

Studies in Conservation

View full text Add to dashboard Cite

Technical examination and restoration of a ceremonial shield from the Solomon Islands

Cited by 4 publications

References 3 publications

Identification of drying oils in mixtures of natural binding media used for artistic and historic works by capillary electrophoresis

Identification of drying oils in mixtures of natural binding media used for artistic and historic works by capillary electrophoresis

Destructuring a shield to rebuild the history: The case of the painted wooden shield from the battle of Lepanto in Marino (Rome, Italy)

Capillary Electrophoresis: An Alternative to Chromatography for Analysis of Natural Organic Binders

Contact Info

Product

Resources

About