Article Dans Une Revue applied spectrosocpy Année : 2007

Non-destructive varnish identification by UV fluorescence spectroscopy

Résumé

The identification of the chemical nature of varnish is essential for art restorers in order to choose a suitable solvent during its removal. Until today, such identification has been performed using chemical analysis after sampling. An innovative technique is presented here, using ultraviolet (UV) fluorescence spectroscopy. The method is nondestructive, workable in situ, and leads to results in real time. It is based on the comparison between the emission spectrum of an unknown varnish with those of fresh, artificially aged, or old reference resins and varnishes, for different monochromatic excitation wavelengths. The resin and the nature of the varnish as spirit, oil, or mixed can thus be identified. Various examples are presented on home-made

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Dates et versions

hal-00429936 , version 1 (05-11-2009)

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  • HAL Id : hal-00429936 , version 1

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Mathieu Thoury, Mady Elias, Jean-Marc Frigerio, Carlos Barthou. Non-destructive varnish identification by UV fluorescence spectroscopy. applied spectrosocpy, 2007, 61 (12), pp.1275-1282. ⟨hal-00429936⟩
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