Edwards H G, Perez F R
Chemical and Forensic Sciences, University of Bradford, United Kingdom.
Biospectroscopy. 1999;5(1):47-52. doi: 10.1002/(SICI)1520-6343(1999)5:1<47::AID-BSPY6>3.0.CO;2-1.
Lichen encrustations from Diploschistes scruposus involved in the biodeterioration of the 13th Century Convento de la Peregrina in Sahagún Spain, have been analyzed using Raman spectroscopy. The vibrational spectra are characteristic of calcium oxalate monohydrate, beta-carotene, chlorophyll, and para-depside phenolic acids such as atranorin, lecanoric acid, and diploschistesic acid. The destructive colonization of the monumental stonework is highlighted and evidence presented for deleterious lichen invasion of the wall paintings inside the Convent.
利用拉曼光谱对参与西班牙萨阿贡市13世纪佩雷格里纳女修道院生物劣化过程的粗糙双缘衣地衣结壳进行了分析。振动光谱是一水合草酸钙、β-胡萝卜素、叶绿素以及对-缩酚酸类酚酸（如黑茶渍素、地衣硬酸和双缘衣酸）的特征光谱。突出了对纪念性石雕的破坏性定殖，并提供了地衣对修道院内壁画有害入侵的证据。
