Notas sobre la identificación mediante técnicas de análisis químico del amarillo de azafrán envejecido artificialmente
- López-Montes, A.
- Espejo, T.
- Vilchez, J.L.
- Blanc, R.
ISSN: 2171-8814
Year of publication: 2008
Issue Title: VIII Congreso Nacional del Color
Volume: 41
Issue: 3
Pages: 261-265
Type: Article
More publications in: Óptica pura y aplicada
Abstract
Chemical composition and physical characteristics of extracts from art materials depend on different factors such as the source of natural dyes, the dyeing procedure, storage conditions through the centuries and ageing processes. It is important to acknowledge the difficulty of the identification of inks from saffron yellow after the exposition to the light. The techniques of identification and evaluation used were High Performance Liquid Chromatography (HPLC) and Capillary Electrophoresis (CE). We carried out a comparative study with aged samples in a controlled specialized camera under extreme condition of humidity, temperature and light.