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A surface investigation of parchments using ToF‐SIMS and PCA
Author(s) -
Vilde Vladimir,
Abel MarieLaure,
Watts John F.
Publication year - 2016
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.6013
Subject(s) - parchment , chemometrics , principal component analysis , mass spectrometry , sample (material) , computer science , pattern recognition (psychology) , chemistry , artificial intelligence , analytical chemistry (journal) , chromatography , archaeology , geography
Currently, information of species recognition on parchments is provided either using proteomics or DNA analysis. Each technique presents with inherent difficulties, and sometimes, it is not possible to obtain an unambiguous result. In this work, the application of time‐of‐flight secondary ion mass spectrometry paired with chemometrics, namely principle component analysis, to the analysis of parchment specimens has been investigated in order to assess if any information may be gleaned and help in the process of recognition or even providing any further information to conservators to be used for preservation of historical parchment. A series of specimens of various ages and species were analysed on both skin and flesh sides. Results indicate that it is fairly straightforward to distinguish between goat and sheep while calf is more difficult to separate from other species. In addition, an unknown sample exhibits data that would classify it as a goat specimen. More work is needed to ascertain which side is being analysed for any unknown materials as the behaviour varies amongst the species examined in this work. Copyright © 2016 John Wiley & Sons, Ltd.