Department of Applied Chemistry, Tokyo University of Science, 1-3, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
Anal Bioanal Chem. 2009 Dec;395(7):1987-96. doi: 10.1007/s00216-009-3141-x. Epub 2009 Oct 1.
Blue-painted pottery was produced in the New Kingdom, Egypt, and decorated with blue, red, and black pigment. In this study, two newly developed portable instruments, a portable X-ray fluorescence spectrometer and a portable X-ray powder diffractometer, were brought to the site on the outcrop at Northwest Saqqara, an archaeological site in Egypt, to verify their performance in on-site analysis of excavated artifacts at the site. Pigments used for the blue-painted pottery and plasters in the New Kingdom were analyzed by these instruments on the basis of both their chemical compositions and crystal-structural information. The blue pigments were identified as two different pigments, Egyptian blue and cobalt blue. The diffraction pattern of the blue pigment of the painted pottery exhibited that of spinel structure. The XRF spectrum of the blue pigment obtained by the same instrument from the same position indicates the presence of Mn, Co, Fe, Ni, and Zn. The possibility of compositional transitions of the cobalt blue pigment with time was revealed on by detailed analysis of the XRF data. The reason for the transitions is considered together with the archaeological background of the New Kingdom, Egypt.
蓝彩陶器产于埃及新王国时期，用蓝色、红色和黑色颜料进行装饰。在这项研究中，两种新开发的便携式仪器，便携式 X 射线荧光光谱仪和便携式 X 射线粉末衍射仪，被带到埃及萨卡拉西北部露头处的遗址现场，以验证它们在现场分析现场挖掘文物的性能。基于化学成分和晶体结构信息，使用这些仪器分析了新王国时期蓝彩陶器和灰泥所用的颜料。蓝色颜料被鉴定为两种不同的颜料，埃及蓝和钴蓝。彩绘陶器上蓝色颜料的衍射图谱显示出尖晶石结构。从同一位置用同一仪器获得的蓝色颜料的 XRF 光谱表明存在 Mn、Co、Fe、Ni 和 Zn。通过对 XRF 数据的详细分析揭示了钴蓝颜料随时间发生成分转变的可能性。考虑到埃及新王国的考古背景，一起探讨了这种转变的原因。
