Analytical and Bioanalytical Chemistry

, Volume 399, Issue 9, pp 3025–3032 | Cite as

Identification of the finishing technique of an early eighteenth century musical instrument using FTIR spectromicroscopy

  • Loïc Bertrand
  • Laurianne Robinet
  • Serge X. Cohen
  • Christophe Sandt
  • Anne-Solenn Le Hô
  • Balthazar Soulier
  • Agnès Lattuati-Derieux
  • Jean-Philippe Echard
Original Paper

Abstract

The study of varnishes from musical instruments presents the difficulty of analysing very thin layers of heterogeneous materials on samples most of which are generally brittle and difficult to prepare. Such study is crucial to the understanding of historical musical instrument varnishing practices since written sources before 1800 are very rare and not precise. Fourier-transform infrared (FTIR) spectroscopy and imaging methods were applied to identify the major chemical components within the build-up of the varnish layers on a cello made by one of the most prominent French violin-makers of the eighteenth century (Jacques Boquay, ca. 1680–1730). Two types of FTIR imaging methods were used: scanning with a synchrotron-based microscope and full-field imaging using a 2D imager with a conventional source. An interpretation of the results obtained from these studies on the Boquay cello is that the maker first applied a proteinaceous layer, probably gelatine-based animal glue. He later applied a second layer based on a mixture of a drying oil and diterpenic resin from Pinaceae sp. From an historical perspective, the results complement previous studies by describing a second technique used for musical instrument finishes at the beginning of the eighteenth century in Europe.

Figure

FTIR spectromicroscopy study of a cello made by the luthier Jacques Boquay (Paris, ca. 1680-1729) shows that the maker first applied a proteinaceous layer, probably gelatine-based animal glue.

Keywords

Fourier transform infrared (FTIR) imaging Historical materials Musical instruments Varnish 

Supplementary material

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ESM (PDF 2280 kb)

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Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Loïc Bertrand
    • 1
    • 2
  • Laurianne Robinet
    • 1
    • 2
  • Serge X. Cohen
    • 1
    • 2
  • Christophe Sandt
    • 3
  • Anne-Solenn Le Hô
    • 4
  • Balthazar Soulier
    • 5
    • 6
  • Agnès Lattuati-Derieux
    • 7
  • Jean-Philippe Echard
    • 6
    • 7
  1. 1.IPANEMASynchrotron SOLEILGif-sur-YvetteFrance
  2. 2.UPS CNRS 3352Synchrotron SOLEILGif-sur-YvetteFrance
  3. 3.SMIS BeamlineSynchrotron SOLEILGif-sur-YvetteFrance
  4. 4.UMR 171 CNRSLaboratoire du Centre de recherche et de restauration des musées de FranceParisFrance
  5. 5.Staatliche Akademie der Bildenden KünsteInstitut für Technologie der MalereiStuttgartGermany
  6. 6.Laboratoire de recherche et de restaurationMusée de la musique, Cité de la musiqueParisFrance
  7. 7.Centre de Recherche sur la Conservation des Collections MNHN-CNRS-MCCParisFrance

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