期刊
ANALYTICA CHIMICA ACTA
卷 440, 期 2, 页码 185-188出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0003-2670(01)01053-4
关键词
Raman microscopy; laser-induced degradation; lead pigments
The recent analysis of the palette used in Botticelli's Trionfo dAmore by Raman microscopy has led to the erroneous identification of the spectrum of a degradation product, most likely that of massicot (orthorhombic PbO), as that of plattnerite (PbO(2)) [Anal. Chim. Acta 429 (2001) 279]. The error is shown to arise from the laser-induced degradation of both the painting and a reference sample of pure PbO(2). The spectrum of undegraded PbO(2) is presented, and the common problem of laser-induced degradation of lead pigments in art conservation studies utilising Raman microscopy is discussed. (C) 2001 Elsevier Science B.V. All rights reserved.
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