Multi-technique characterization of madder lakes: A comparison between non- and micro-destructive methods

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Título: Multi-technique characterization of madder lakes: A comparison between non- and micro-destructive methods
Autor/es: Campanella, Beatrice | Grifoni, Emanuela | Hidalgo, Montserrat | Legnaioli, Stefano | Lorenzetti, Giulia | Pagnotta, Stefano | Poggialini, Francesco | Ripoll-Seguer, Laura | Palleschi, Vincenzo
Grupo/s de investigación o GITE: Espectroscopía Atómica-Masas y Química Analítica en Condiciones Extremas
Centro, Departamento o Servicio: Universidad de Alicante. Departamento de Química Analítica, Nutrición y Bromatología
Palabras clave: Madder lakes | Multispectral Imaging | X-ray fluorescence | LIBS | HPLC-UV/Vis
Área/s de conocimiento: Química Analítica
Fecha de publicación: sep-2018
Editor: Elsevier
Cita bibliográfica: Journal of Cultural Heritage. 2018, 33: 208-212. doi:10.1016/j.culher.2018.01.013
Resumen: The chemical characterization of paint material is paramount for the understanding of painting techniques, provenance studies and for assessing conservation strategies. In particular, the chemical characterization of both the organic and inorganic fraction of lakes is fundamental to assess the technologies used in their production. In this short note, we present a pilot study by comparing several micro-destructive and non-destructive methods for the comprehensive characterization of the organic and inorganic fraction of reference madder lakes. In the final procedure, the chromophores-containing molecules were separated using a sample preparation procedure based on acid hydrolysis and solvent extraction, and analysed by high-pressure liquid chromatography with UV-Vis detector (HPLC-UV/Vis). Laser induced breakdown spectroscopy (LIBS) and X-Ray Fluorescence (XRF) were used for the study of the elemental composition. Multispectral Imaging was also applied in order to evaluate its potentialities to distinguish amongst different red lakes. The final multi-technique method allowed for the characterization of both organic and inorganic fraction from the same lake micro sample.
URI: http://hdl.handle.net/10045/79647
ISSN: 1296-2074 (Print) | 1778-3674 (Online)
DOI: 10.1016/j.culher.2018.01.013
Idioma: eng
Tipo: info:eu-repo/semantics/article
Derechos: © 2018 Elsevier Masson SAS
Revisión científica: si
Versión del editor: https://doi.org/10.1016/j.culher.2018.01.013
Aparece en las colecciones:INV - SP-BG - Artículos de Revistas

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