The intrinsic complexity of the coating systems on historical bowed string musical instruments complicates the characterization of the different materials that have been subsequently spread on the wood. Even more challenging is the identification of their spatial distribution in the sequence of the finishing layers. To face both issues, in this study we combined Synchrotron radiation micro - FTIR in reflection geometry and Chemometrics for the investigation of five micro-samples mounted in crosssections, removed from musical instruments made by Antonio Stradivari, Francesco Ruggeri and Lorenzo Storioni. A classification model based on Partial Least Squares – Discriminant Analysis aimed at discriminating the organic materials through infrared signals was developed. High model specificity (> 0.9) was reached in prediction, doing the groundwork for the application of a fast and rigorous methodological approach.

Managing complex Synchrotron radiation FTIR micro-spectra from historic bowed musical instruments by chemometrics

Giacomo Fiocco;Patrizia Davit;Monica Gulmini;
2019

Abstract

The intrinsic complexity of the coating systems on historical bowed string musical instruments complicates the characterization of the different materials that have been subsequently spread on the wood. Even more challenging is the identification of their spatial distribution in the sequence of the finishing layers. To face both issues, in this study we combined Synchrotron radiation micro - FTIR in reflection geometry and Chemometrics for the investigation of five micro-samples mounted in crosssections, removed from musical instruments made by Antonio Stradivari, Francesco Ruggeri and Lorenzo Storioni. A classification model based on Partial Least Squares – Discriminant Analysis aimed at discriminating the organic materials through infrared signals was developed. High model specificity (> 0.9) was reached in prediction, doing the groundwork for the application of a fast and rigorous methodological approach.
Metroarchaeo 2019 IMEKO TC-4 International Conference on Metrology for Archaeology and Cultural Heritage
Firenze, Italy
December 4 - 6, 2019
2019 IMEKO TC-4 International Conference on Metrology for Archaeology and Cultural Heritage (MetroArchaeo 2019) Proceedings
IMEKO-International Measurement Federation Secretariat
114
119
978-92-9900845-4
https://www.imeko.org/publications/tc4-Archaeo-2019/IMEKO-TC4-METROARCHAEO-2019-22.pdf
Chemometrics, Musical instruments, FTIR, Synchrotron radiation, micro analysis
Silvia Grassi, Giacomo Fiocco, Claudia Invernizzi, Tommaso Rovetta, Michela Albano, Patrizia Davit, Monica Gulmini, Chiaramaria Stani, Lisa Vaccari, Maurizio Licchelli, Marco Malagodi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1750893
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