Fourier Transform Infrared Microscopic Imaging of an Embedded Paint Cross-Section
Fourier Transform Infrared Microscopic Imaging of an Embedded Paint Cross-Section
复制标题
嵌入式涂料横截面的傅里叶变换红外显微成像
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
R. Heeren
中科院分区：
文献类型：
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作者：
J. van der Weerd;H. Brammer;J. Boon;R. Heeren
傅里叶变换红外成像是一种新的分析方法，在油漆截面的研究。分析型FT-IR反射成像提供了约7 μm分辨率的红外光谱的空间分辨采集。该技术揭示了嵌入式油漆横截面的各个层中的有机官能团分布的详细信息，并用于补充视觉显微镜和扫描电子显微镜/能量分散X射线光谱（SEM-EDX）。这种方法被应用于伦勃朗的《一个站立的人的肖像》（1639年）的绘画横截面。该横截面的FT-IR成像鉴定并定位了该样品层中存在的不同化合物。这些化合物的红外光谱鉴定的基础上，证实了艺术历史和保护文献的结果。特别注意的是，在所述绘画的大部分中观察到的变色。这种变色在油漆横截面中清晰可见。基于FT-IR成像结果，对变色漆层的性质进行了假设。
Fourier transform infrared imaging is presented as a new analytical approach in the study of paint cross-sections. Analytical FT-IR reflection imaging provides the spatially resolved acquisition of infrared spectra with a resolution of about 7 μm. The technique reveals detailed information on the organic functional group distribution in the individual layers of embedded paint cross-sections and is used complementary to visual microscopy and scanning electron microscopy/energy dispersed X-ray spectroscopy (SEM-EDX). This method was applied to a paint cross-section of Rembrandt's Portrait of a Standing Man (1639). FT-IR imaging of this cross-section identified and localized different compounds present in the layers of this sample. Identification of these compounds based on their infrared spectra is confirmed by results from art historical and conservation literature. Special attention was given to a discoloration that was observed in large parts of the described painting. This discoloration was clearly visible in the paint cross-section. A hypothesis on the nature of the discolored paint layer is formulated based on the FT-IR imaging results.