Dipartimento di Biochimica e Biotecnologie Mediche, Università di Napoli Federico II, Napoli, Italy.
J Sep Sci. 2012 Nov;35(21):2986-93. doi: 10.1002/jssc.201200490. Epub 2012 Sep 24.
Spectroscopic and MS techniques were used to characterize the pigments and the composition of polar and nonpolar binders of a stray wall painting fragment from Liternum (Italy) archaeological excavation. X-ray fluorescence and diffraction analysis of the decorations indicated mainly the presence of calcite, quartz, hematite, cinnabar, and cuprorivaite. Infrared spectroscopy, GC coupled to flame-ionization detector, and MS analysis of the polar and nonpolar components extracted from paint layers from three different color regions revealed the presence of free amino acids, sugars, and fatty acids. Interestingly, LC-MS shotgun analysis of the red painting region showed the presence of αS1-casein of buffalo origin. Compared to our previous results from Pompeii's wall paintings, even though the Liternum painting mixture contained also binders of animal origin, the data strongly suggest that in both cases a tempera painting technique was utilized.
光谱和质谱技术被用于描述从意大利利特努姆（Liternum）考古发掘中获得的一幅流浪壁画碎片的颜料和极性及非极性粘合剂的成分。对装饰物的 X 射线荧光和衍射分析表明，主要存在方解石、石英、赤铁矿、朱砂和铜叶绿矾。从三个不同颜色区域的油漆层中提取的极性和非极性成分的红外光谱、气相色谱与火焰离子化检测器耦合和质谱分析表明存在游离氨基酸、糖和脂肪酸。有趣的是，对红色绘画区域的 LC-MS 鸟枪法分析显示了水牛源的αS1-酪蛋白的存在。与我们之前从庞贝古城壁画中获得的结果相比，尽管利特努姆壁画的混合物中也含有动物来源的粘合剂，但这些数据强烈表明，在这两种情况下都使用了蛋彩画技术。
