Non-invasive identification of organic materials in historical stringed musical instruments by reflection infrared spectroscopy: a methodological approach.
The analysis of historical musical instruments is becoming more relevant and the interest is increasingly moving toward the non-invasive reflection FTIR spectroscopy, especially for the analysis of varnishes. In this work, a specific infrared reflectance spectral library of organic compounds was created with the aim of identifying musical instrument materials in a totally non-invasive way. The analyses were carried out on pure organic compounds, as bulk samples and laboratory wooden models, to evaluate the diagnostic reflection mid-infrared (MIR) bands of proteins, polysaccharides, lipids, and resins by comparing reflection spectra before and after the KK correction. This methodological approach was applied to real case studies represented by four Stradivari violins and a Neapolitan mandolin.
Laboratorio Arvedi di Diagnostica Non Invasiva, Università di Pavia, Via Bell'Aspa 3, 26100, Cremona, Italy.
Claudia
C
Invernizzi
Associazione Laboratorio di Diagnostica per i Beni Culturali, Piazza Campello 2, 06049, Spoleto, Perugia, Italy. a.daveri@diagnosticabeniculturali.it.
Alessia
A
Daveri
Associazione Laboratorio di Diagnostica per i Beni Culturali, Piazza Campello 2, 06049, Spoleto, Perugia, Italy.
Manuela
M
Vagnini
Laboratorio Arvedi di Diagnostica Non Invasiva, Università di Pavia, Via Bell'Aspa 3, 26100, Cremona, Italy.|Dipartimento di Musicologia e Beni Culturali, Università di Pavia, Corso Garibaldi 178, 26100, Cremona, Italy.
Marco
M
Malagodi
Mid-FTIR; Organic materials; Reflection infrared spectroscopy; Stringed musical instruments; Varnishes; Violins