Micro-Raman mapping on polished cross sections: a tool to define the penetration depth of conservation treatment on cultural heritage
Micro-Raman mapping on polished cross sections: a tool to define the penetration depth of conservation treatment on cultural heritage
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抛光横截面的显微拉曼测绘：定义文化遗产保护处理渗透深度的工具
DOI：
10.1002/jrs.2585
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
G. Zerbi
中科院分区：
文献类型：
--
作者：
C. Conti;C. Colombo;M. Matteini;M. Realini;G. Zerbi
如今，为了保护艺术品的表面，使用了几种有机和无机物。为了评估这些物质在材料内的渗透深度和分布，必须确定保守治疗的有效性。由于目前的分析技术得到的结果不明确，实现这一目标是至关重要的。该研究表明，在抛光截面上的微拉曼映射是一种能够研究材料内部部分的有效工具。草酸铵是一种广泛用于碳酸盐材料养护工程的无机物。新形成的草酸钙谱线的微拉曼映射可以在不同的处理条件下对比渗透深度和产物在样品内的分布。此外，微拉曼光谱与显微技术之间也有很好的一致性。版权所有©2010 John Wiley & Sons， Ltd
Nowadays, in order to preserve the surfaces of works of art, several organic and inorganic substances are used. To evaluate the penetration depth and the distribution of these substances inside the materials, it is essential to define the effectiveness of a conservative treatment. Owing to the ambiguous results obtained with the current analytical techniques, the achievement of this aim is critical. This study shows how micro-Raman mapping on polished cross section is an effective tool capable of investigating the inner portions of the materials. A set of painted plasters has been treated with ammonium oxalate solutions, an inorganic substance widely used for conservation works of carbonatic materials. The micro-Raman mapping of the lines of the newly formed calcium oxalate allowed correlation of the penetration depth and the distribution of the product inside the specimens with different conditions of treatment. Moreover, a good agreement between micro-Raman spectroscopy and microscopic techniques has been obtained. Copyright © 2010 John Wiley & Sons, Ltd.