几种市售颜料真伪的科技鉴别及应用研究

The Scientific Identification and Application Research of Several Commercially Available Pigments

为了鉴别几种市售矿物颜料的真伪,利用X射线荧光分析和X射线衍射分析对其元素组成和物相结构进行了分析。实验结果表明,市售朱砂、铅丹、石青、石绿颜料是真品,与朱砂、铅丹、石青、石绿颜料组成和结构完全相符。市售巴黎绿不含醋酸铜合亚砷酸铜,且没有检测到无机绿色显色成分,属伪品,可能是有机染料。X射线荧光分析和X射线衍射分析是简便、易行的颜料真伪鉴别的科技方法,该研究为彩绘文物保护修缮材料选择提供了科学依据。

To identify the authenticity of several commercially available mineral pigments,the elemental composition and phase structure were analyzed by X-ray fluorescence and X-ray diffraction.The experimental results show that the commercial cinnabar,minium,azurite and malachite pigment is real product,which is completely consistent with the composition and structure of cinnabar,minium,azurite and malachite respectively.There were no copper acetoarsenit and other green inorganic pigments detected in the commercial emerald green.Therefore the green pigment is fake and may be organic dyes actually.X-ray fluorescence and X-ray diffraction are simple and effective scientific methods to identify the authenticity of pigments.The research provides a scientific basis for selection of conservation materials of polychrome cultural relics.