西藏拉萨大昭寺转经廊壁画颜料的拉曼光谱分析

Raman Spectroscopic Analysis of Wall Painting Pigments at Jokhang Temple,Lhasa,Tibet,China

利用显微激光拉曼光谱仪对大昭寺转经廊壁画颜料进行了分析。结果表明,壁画使用的红、黄、蓝、绿和白色颜料有朱砂、铅丹、甲苯胺红、雌黄、铅铬黄、铁黄、石青、群青、石绿、水胆矾、巴黎绿、菱镁矿、立德粉和方解石。首次发现壁画中使用了合成有机颜料甲苯胺红。检测分析结果提供了准确可靠的资料,有助于清晰认识不同时期壁画绘制和修复所使用颜料成分。

Raman microscopy was applied to analyze pigments samples were collected from murals on the pilgrimage-corridor walls at Jokhang Temple,Lhasa,Tibet,China.The results show that red pigments are cinnabar,red lead and toluidine red,yellow pigments are orpiment,lead chrome yellow and iron（III）oxide monohydrate,blue pigments are azurite and ultramarine blue,green pigments are malachite,brochantite and emerald green,write pigments are magnesite,ithopone and calcite.Synthetic organic pigments（Toluidine Red）was founded first time.The investigation can provide accurate and reliable information for the clear understanding different historical periods mural painting and restoration pigments.