期刊
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
卷 392, 期 4, 页码 755-763出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s00216-008-2317-0
关键词
pigment; alabaster; Raman; XRF; artwork; sculpture
资金
- Spanish Ministry of Education and Science
- Universidad-Empresa Project PIETRA [UE05-A09]
- Museo Diocesano y Arte Sacro de Bilbao
A complete study of several English polychromed alabaster sculptures is presented. The support, pigment, and binders were characterised by combining mu EDXRF, mu Raman, and FTIR spectroscopies. Among the pigments, minium, vermilion, lead white, carbon black, red iron oxide, and a degraded green copper pigment were determined, together with gold leaf. The presence of the rare mineral moolooite (copper oxalate) was also found as a degradation product in the green areas, where weddellite (calcium oxalate dihydrate) was also determined. These facts, together with degradation of the green copper pigment, suggest microbiological degradation of the original materials. Remains of glue and a varnish were also determined by FTIR spectroscopy and principal-components analysis (PCA) of the spectra. Finally, PCA analysis was carried out to confirm whether the pieces came from the same quarry.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据