光导纤维反射光谱法及其在文物保护中的应用

光导纤维反射光谱法是一种无损检测方法,其基本原理遵循库贝尔卡·芒克(Ｋｕｂｅｌｋａ－Ｍｕｎｋ)方程式,现已广泛应用于纸张、金属、陶瓷、织物等的直接分析,也适用于文物的无损分析研究,此方法在文物保护工作中的应用虽刚刚起步,但前景广阔。     

Florence baptistery: chemical and mineralogical investigation of glass mosaic tesserae

A recent restoration of the mosaics of the Baptistery in Florence enabled the collection and analysis of a group of glass tesserae. Twenty-three tesserae, dated between the end of the 13th century and the first half of the 14th century, showing different colors were sampled and analyzed to identify the raw materials, colorants and opacifiers employed in their production.