Avances en la aplicación de imágenes hiperespectrales de espectroscopía infrarroja y Raman para la caracterización de materiales naturales y artificiales y sus transformaciones químicas

  1. GONZÁLEZ CABRERA, MARÍA
Supervised by:
  1. María José Ayora-Cañada Director
  2. Ana Domínguez Vidal Co-director

Defence university: Universidad de Jaén

Fecha de defensa: 25 March 2021

Committee:
  1. Itziar Ruisánchez Capelastegui Chair
  2. Antonio Ruiz Medina Secretary
  3. Antonella Casoli Committee member
Department:
  1. QUÍMICA FÍSICA Y ANALÍTICA

Type: Thesis

Teseo: 660658 DIALNET

Abstract

This Thesis demonstrates the analytical potential of hyperspectral imaging (HSI) of infrared and Raman spectroscopy, in combination with chemometrics for various applications of scientific interest, focused on the study of chemical transformations and the characterization of materials. Thus, both the spectral changes that occur in the biological ripening process of olives and the degradation of pictorial materials subjected to accelerated ageing with UV radiation have been studied. On the other hand, HSI has been used for the multimodal characterization of the ultramarine, a blue pigment that has been highly appreciated throughout history, by combining spectral information with two strategies: taking advantage of all the spectral information of a different nature obtained with a single instrument; and combining elemental and molecular information from different instruments. Finally, HSI-Raman acquisition in remote mode for the characterization of materials has been explored.