Raman and surface-enhanced Raman spectroscopy for the analysis of Mexican yellow dyestuff
Por:
Garcia-Bucio M.A., Maynez-Rojas M.Á., Casanova-Gonzalez, Edgar, Cárcamo-Vega J.J., Ruvalcaba-Sil J.L., Mitrani, Alejandro
Publicada:
1 oct 2019
Ahead of Print:
1 ago 2019
Resumen:
In pre-Hispanic Mesoamerica, pigments and dyes were used in the
elaboration of a large variety of colored objects. Obtaining information
regarding the objects' material composition is useful in restoration and
preservation processes, as well as for recovering knowledge of its
production technology and the context and history of the object. Yellow
colors have been obtained from a large variety of Mexican natural
resources. Although mineral yellow pigments, such as orpiment and
oxides, are relatively easy to identify by nondestructive and
noninvasive techniques (X-ray fluorescence, Raman spectroscopy, fiber
optics reflectance spectroscopy, and Fourier transform infrared
spectroscopy), organic yellow colorants are difficult to analyze by
these techniques. Therefore, most works dealing with the identification
of yellow dyes use destructive methods such as liquid
chromatography-mass spectrometry. The aim of this work is to elaborate a
methodology based on Raman spectroscopy and surface-enhanced Raman
spectroscopy for the study of yellow colorants used in pre-Hispanic and
colonial Mexico, in order to aid in their identification by
spectroscopic techniques. The yellow colorants selected for this work
were extracted from local plants: zacatlaxcalli (Cuscuta tinctoria), old
fustic (Maclura tinctoria), weld (Reseda luteola), marigold (Tagetes
erecta), and xochipalli (Cosmos sulphureus).
Filiaciones:
Garcia-Bucio M.A.:
Instituto de Física, Universidad Nacional Autónoma de México, Circuito de la Investigación s/n, Ciudad Universitaria, Mexico City, Coyoacán 04510, Mexico
Maynez-Rojas M.Á.:
Instituto de Física, Universidad Nacional Autónoma de México, Circuito de la Investigación s/n, Ciudad Universitaria, Mexico City, Coyoacán 04510, Mexico
Casanova-Gonzalez, Edgar:
Instituto de Física, Universidad Nacional Autónoma de México, Circuito de la Investigación s/n, Ciudad Universitaria, Mexico City, Coyoacán 04510, Mexico
CONACyT–Instituto de Física, Universidad Nacional Autónoma de México, Circuito de la Investigación s/n, Ciudad Universitaria, Mexico City, Coyoacán 04510, Mexico
Cárcamo-Vega J.J.:
Laboratorio de Análisis e Investigaciones Arqueométricas (LAIA), Instituto de Alta Investigación (IAI), Universidad de Tarapacá, Arica, Chile
Ruvalcaba-Sil J.L.:
Instituto de Física, Universidad Nacional Autónoma de México, Circuito de la Investigación s/n, Ciudad Universitaria, Mexico City, Coyoacán 04510, Mexico
Mitrani, Alejandro:
Instituto de Física, Universidad Nacional Autónoma de México, Circuito de la Investigación s/n, Ciudad Universitaria, Mexico City, Coyoacán 04510, Mexico
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