SEM-FEG-EDS, GC-MS, EPR and Vibrational Spectroscopy Analysis of Materials in Baroque-Style Sculpture “Our Lady of Sorrows” from Garopaba, Santa Catarina, Brazil

IF 0.6 0 ART

International Journal of Conservation Science Pub Date : 2023-09-15 DOI:10.36868/ijcs.2023.03.10

Thiago Costa, Adolfo Junior, Lino Meurer, Rafaela da Silva Barbosa, Fabio Richter, Felipe Beirao, Gustavo Amadeu Micke, Samantha Goncalves, Bruno SZPOGANICZ, Mayara Fornari, Tassya T. da Silva Matos, Antonio Mangrich

{"title":"SEM-FEG-EDS, GC-MS, EPR and Vibrational Spectroscopy Analysis of Materials in Baroque-Style Sculpture “Our Lady of Sorrows” from Garopaba, Santa Catarina, Brazil","authors":"Thiago Costa, Adolfo Junior, Lino Meurer, Rafaela da Silva Barbosa, Fabio Richter, Felipe Beirao, Gustavo Amadeu Micke, Samantha Goncalves, Bruno SZPOGANICZ, Mayara Fornari, Tassya T. da Silva Matos, Antonio Mangrich","doi":"10.36868/ijcs.2023.03.10","DOIUrl":null,"url":null,"abstract":"Materials belonging to the polychromy and gilding of the sculpture ‘Our Lady of Sorrows, which belongs to the collection of a church in Garopaba, Santa Catarina, southern Brazil, were analyzed by multiple techniques. The analysis by μ-Raman and FTIR indicated the use of the ultramarine blue pigment, confirmed by EDS, with calcium carbonate observed in the base of preparation. The results show the use of gold leaf based on a gold and silver alloy, and the use of Armenian bole with clay and traces of manganese, as the base for fixing the gold leaf was characterized. GC-MS analysis suggested the use of plant oil in the painting process. Finally, the EPR analysis showed the presence of Fe3+, Mn2+ and organic radicals from the degradation of the binder, suggesting the formation of complexes with the degradation products, this being one of the first reports in this type of painting.","PeriodicalId":45840,"journal":{"name":"International Journal of Conservation Science","volume":"5 1","pages":"0"},"PeriodicalIF":0.6000,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Conservation Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.36868/ijcs.2023.03.10","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"0","JCRName":"ART","Score":null,"Total":0}

引用次数: 0

Abstract

Materials belonging to the polychromy and gilding of the sculpture ‘Our Lady of Sorrows, which belongs to the collection of a church in Garopaba, Santa Catarina, southern Brazil, were analyzed by multiple techniques. The analysis by μ-Raman and FTIR indicated the use of the ultramarine blue pigment, confirmed by EDS, with calcium carbonate observed in the base of preparation. The results show the use of gold leaf based on a gold and silver alloy, and the use of Armenian bole with clay and traces of manganese, as the base for fixing the gold leaf was characterized. GC-MS analysis suggested the use of plant oil in the painting process. Finally, the EPR analysis showed the presence of Fe3+, Mn2+ and organic radicals from the degradation of the binder, suggesting the formation of complexes with the degradation products, this being one of the first reports in this type of painting.

查看原文本刊更多论文

巴西圣卡塔琳娜加罗巴巴洛克风格雕塑“悲伤圣母”材料的sem - fg - eds、GC-MS、EPR和振动光谱分析

属于多色和镀金的雕塑“Our Lady of Sorrows”的材料，属于巴西南部圣卡塔琳娜州Garopaba的一座教堂的收藏，通过多种技术进行了分析。μ-拉曼光谱和傅里叶红外光谱分析表明，所制备的颜料为深蓝色颜料，能谱仪也证实了所制备的颜料中含有碳酸钙。结果表明，以金银合金为基材的金箔，以及以粘土和微量锰为基材的亚美尼亚孔作为固定金箔的基材具有一定的特点。GC-MS分析表明在喷漆过程中使用了植物油。最后，EPR分析显示粘结剂降解后存在Fe3+， Mn2+和有机自由基，表明与降解产物形成配合物，这是此类涂料的首次报道之一。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

International Journal of Conservation Science ART-

CiteScore

1.70

自引率

37.50%

发文量

审稿时长

10 weeks

期刊介绍： The International Journal of Conservation Science (IJCS) is a high quality peer-reviewed journal devoted to the publication of original research papers in applied conservation science and its broad range of applications. IJCS it is an open access journal. All content is freely available without charge to any user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles in this journal without asking prior permission from the publisher or the author. The topics cover all disciplines and branches of modern scientific conservation, including different aspects on general conservation theory, scientific investigation of works of art, authentication, determination of conservation state, compatibility studies for preservation and restoration procedures and monitoring of interventions effectiveness, etiopathology of historic and natural monuments, studies on the mechanisms of deterioration and degradation for different materials as structural and ornamental elements, impact of the environmental factors or agents on monuments and ecosystems, obtaining and characterization of new materials and procedures for preservation and restoration, new methodologies for scientific investigation, cross-related problems concerning research applied to conservation science, biodiversity conservation. Review articles in selected areas are published from time to time.