Clementi C, Miliani C, Romani A, Santamaria U, Morresi F, Mlynarska K, Favaro G
Laboratory of Photophysics and Photochemistry, Dipartimento di Chimica, Università di Perugia, 06123 Perugia, Italy.
Spectrochim Acta A Mol Biomol Spectrosc. 2009 Jan;71(5):2057-62. doi: 10.1016/j.saa.2008.08.006. Epub 2008 Oct 2.
In this paper, three Renaissance tapestries depicting scenes painted by Raffaello Sanzio, conserved at the Vatican Museum, were investigated using in-situ UV-Visible fluorimetric measurements. The results show that this technique is suitable for the detection of natural organic colorants used for dyeing the threads woven in these tapestries. The emission signals detected on red-purple colours were assigned to the colorant orcein and those on different nuances of blue and green colours to indigo by comparison with data from reference laboratory samples. The assignments were supported by chromatographic experiments carried out on threads taken from the back side of the tapestry in the same points analysed by spectrofluorimentry.
在本文中，对收藏于梵蒂冈博物馆的三件描绘拉斐尔·桑西奥所绘场景的文艺复兴时期挂毯进行了原位紫外可见荧光测量研究。结果表明，该技术适用于检测用于这些挂毯中编织线染色的天然有机着色剂。通过与参考实验室样品的数据比较，在红紫色上检测到的发射信号被归因于着色剂地衣红，而在不同深浅的蓝色和绿色上检测到的发射信号被归因于靛蓝。这些归属得到了对从挂毯背面与荧光光谱分析相同位置取下的线进行的色谱实验的支持。
