Comparison of oil and egg tempera paint systems using time-of-flight secondary ion mass spectrometry
| Autor: | Eric Gordon, Thomas P. Beebe, Kristin deGhetaldi, Brian Baade, Zachary E. Voras, Glenn Gates |
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| Rok vydání: | 2016 |
| Předmět: |
Chromatography
Silylation 010401 analytical chemistry Analytical technique Drying oil 02 engineering and technology Conservation Animal glue 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Secondary ion mass spectrometry Time of flight chemistry.chemical_compound chemistry Reagent 0210 nano-technology Derivatization |
| Zdroj: | Studies in Conservation. 61:222-235 |
| ISSN: | 2047-0584 0039-3630 |
| DOI: | 10.1179/2047058414y.0000000154 |
| Popis: | Time-of-flight secondary ion mass spectrometry (ToF-SIMS) is quickly becoming a critical tool in the field of art conservation. This technique provides high-resolution spatial maps of both inorganic and organic components located within cross-sectional samples collected from works of art. With recent advances in surface analysis, ToF-SIMS can now be used to identify specific amino acids present in protein-containing materials as well as fatty acids in drying oils. For example, the detection of the ion fragment associated with the amino acid hydroxyproline can be used to confirm the use of animal glue in a paint sample. As an analytical technique, ToF-SIMS avoids the need for derivatization/silylation reagents, with no interference by the presence of pigments. Furthermore, the layered systems that are often encountered in historical paint samples remain intact throughout the analytical procedure. This allows for the co-localization of organic and inorganic species in specific layers (e.g. egg yolk paint at... |
| Databáze: | OpenAIRE |
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