UV-Vis spectroscopy

• Autor(a) principal: Picollo, Marcello
• Data de Publicação: 2019
• Outros Autores: Aceto, Maurizio, Vitorino, Tatiana
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10362/107857
• topic: carpets and tapestries; FORS; glass; metals; microspectrofluorimetry; minerals; non-invasive; paintings and manuscripts; reflectance; textiles; UV-Vis spectroscopy; Chemistry(all); Physics and Astronomy(all); Materials Science(all)

UV-Vis reflectance spectroscopy has been widely used as a non-invasive method for the study of cultural heritage materials for several decades. In particular, FORS, introduced in the 1980s, allows to acquire hundreds of reflectance spectra in situ in a short time, contributing to the identification of artist's materials. More recently, microspectrofluorimetry has also been proposed as a powerful non-invasive method for the identification of dyes and lake pigments that provides high sensitivity and selectivity. In this chapter, the concepts behind these spectroscopic methodologies will be discussed, as well as the instrumentation and measurement modes used. Case studies related with different cultural heritage materials (paintings and manuscripts, textiles, carpets and tapestries, glass, metals, and minerals), which show the usefulness of UV-Vis reflectance spectroscopy and microspectrofluorimetry applied to the study of artworks, will also be presented.