Characterization of commercial synthetic resins by pyrolysis-gas chromatography/mass spectrometry : application to modern art and conservation
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Other documents of the author: Vives-Peris, Vicente; Baumer, U.; Stege, H.; Lutzenberger, K.; Gimeno Adelantado, J. V.
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Title
Characterization of commercial synthetic resins by pyrolysis-gas chromatography/mass spectrometry : application to modern art and conservationDate
2009-04-15Publisher
American Chemical SocietyISSN
0003-2700Bibliographic citation
PERIS-VICENTE, Juan, et al. Characterization of commercial synthetic resins by pyrolysis-gas chromatography/mass spectrometry: application to modern art and conservation. Analytical chemistry, 2009, vol. 81, no 8, p. 3180-3187.Type
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Abstract
To characterize a set of synthetic resins, a methodology by pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) has been developed. The studied reference materials were commercial versions of a wide range of ... [+]
To characterize a set of synthetic resins, a methodology by pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) has been developed. The studied reference materials were commercial versions of a wide range of synthetic resins. For each polymer, the pyrolytic and chromatographic conditions were optimized to adequately resolve the fragment mixture in a short time. The proposed
analytical method does not require previous treatment of the sample, and due to its high sensitivity, only a small sample quantity in the microgram range can be used. The pyrolysis temperature was found to have little effect on the obtained pyrograms. The summarized data set for the individual polymer materials, especially the characteristic fragments with a structure close to the monomeric unit, was useful to identify commercial synthetic resins. These materials were used in the art and
conservation field, as binding media, paint additives, painting varnishes, coatings, or consolidants. Two case studies are introduced where direct Py-GC/MS and thermally assisted hydrolysis and methylation GC/MS were applied on art objects: first, a modern gluing material of a medieval reverse glass painting, and the second example, the binding medium of a painting by Georg Baselitz (“Senta”, 1992/1993) from the Sammlung Moderne Kunst at the Pinakothek der Moderne, Munich [-]
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Analytical Chemistry, 2009, vol. 81, no. 8Rights
© 2009 American Chemical Society
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