Summary
Although pyrolysis coupled with gas chromatography and mass spectrometry (Py-GC-MS) is a useful technique for the rapid characterization of the organic materials used by artists, diagnostic pyrolysis products bearing polar groups, for example carboxylic acids, require derivatization (e. g. methylation) before GC separation. In this study we propose the use of hexamethyldisilazane (HMDS) as an effective on-line derivatizing reagent to prepare the trimethylsilyl (TMS) derivatives of fatty acids released from the pyrolysis of fats. Pyrolysis in combination with HMDS has been applied to the analysis of lipid materials employed as painting media, for example siccative oils and egg.
Similar content being viewed by others
References
Mills, J.S.; White, R.W.The Organic Chemistry of Muscum Objects, Butter-worth-Heinemann, UK,1996.
Shedrinsky, A.; Baer N.S. InApplied Pyrolysis Handbook: Wampler, T.P., Ed., Marcel Dekker, New York,1995.
Challinor, J.M.J. Anal. Appl. Pyrolysis 1991,20, 15–24.
Chiavari, G.; Bocchini, P.; Galletti, G.C.Sci. Technol. Cultural Heritage 1992, 153–158.
Challinor, J.M.J. Anal. Appl. Pyrolysis 1996,37, 185–197.
Chiavari, G.; Gandini, N.; Russo, P.; Fabbri, D.Chromatographia 1998,47, 420–426.
Asperger, A.; Engewald, W.; Fabian, G.J. Anal. Appl. Pyrol. 1999,52, 51–63.
Ishida, Y.; Wakamatsu, S.; Yokoi, H.; Othani, H.; Tsuge, S.J. Anal. Appl. Pyrol;1999,49, 267–276.
Asperger, A.; Engewald, W.; Fabian, G.J. Anal. Appl. Pyrol. 1999,50, 103–115.
Kuroda, K.J. Anal. Appl. Pyrol. 2000,50, 79–87.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Chiavari, G., Fabbri, D. & Prati, S. In-situ pyrolysis and silylation for analysis of lipid materials used in paint layers. Chromatographia 53, 311–314 (2001). https://doi.org/10.1007/BF02490430
Received:
Revised:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02490430