稀世古代手稿上颜料的退蚀是一个严重的问题．为了保护这些无可替代的文稿，需要在现场使用无损伤分析技术来辨认原来的颜料，判断损伤是如何产生的以及如何修复它．应英国图书馆的请求，伦敦大学的科学家们利用拉曼显微技术实现了这一目标．该校化学系的科学家分析了一本13世 The erosion of pigments in rare ancient manuscripts is a serious problem. In order to protect these irreplaceable documents, non-destructive analysis techniques need to be used in the field to identify the original pigment, determine how the damage was generated, and how to repair it. At the request of the British Library, scientists at the University of London achieved this goal using Raman microscopy. The school chemistry department scientists analyzed a 13th century