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Raman spectroscopy in the diagnosis of the wall painting History of Concepción, Chile
(2011)
Pigments and fresco-related materials from the wall painting Historia de Concepción by Gregorio De La Fuente in Concepción, Chile were identified by Raman microscopy. The pigments were compared with those obtained from the ...
Raman characterization of CuCr2-xSnxS4 spinels
(Sociedad Chilena de Quimica, 2019)
Polycrystalline thiospinels CuCr2-xSnxS4 (x = 0.4, 0.8, 1.0 and 1.4) were synthesized via conventional solid-state reaction. The samples were characterized by powder X-ray diffraction (XRD), energy-dispersive X-ray analysis ...
Raman spectra of thin solid films. VII–Uranyl superphtalocyanine
(1989)
Raman and infrared spectra of evaporated uranyl superphthalocyanine (UO2SPc) films are reported. Raman spectra of UO2SPc (formed by five isoindoline subunits) depart from the general spectral trends observed in metallated ...
Raman spectroscopy and x-ray fluorescence in molecular analysis of yellow blocks from the archeological site playa miller 7 (northern Chile)
(Sociedad Chilena de Quimica, 2013)
Yellow blocks from the archaeological site Playa Miller 7 (PLM7), on the coast of Atacama Desert in northern Chile, were analyzed by Raman spectroscopy and X-ray fluorescence (XRF) portable. Our results identify for the ...
Optimization of sample treatment for the identification of anthraquinone dyes by surface-enhanced Raman spectroscopy
(Springer Verlag, 2017)
© 2017, Springer-Verlag Berlin Heidelberg. The study and characterization of old artifacts such as pigments requires the use of techniques that need a small amount of sample to perform the analysis because of the high value ...
Raman Identification of Pigments in the Work of the Chilean Contemporary Visual Artist Ignacio Gumucio
(Sociedad Chilena Química, 2016)
The main pigments in the painting by the Chilean artist Ignacio Gumucio were identified by using micro-Raman spectroscopy. Three works by the artist, two paintings with wooden stand and a wall painting were analyzed. ...
Raman of indigo on a silver surface. Raman and theoretical characterization of indigo deposited on silicon dioxide-coated and uncoated silver nanoparticles
(Taylor & Francis, 2017)
Raman, surface-enhanced Raman scattering, and shell isolated nanoparticles-enhanced Raman scattering techniques were used to study the indigo-nanoparticle interaction nature. Silver nanoparticles were employed with and ...
Surface-enhanced Raman scattering study of L-tryptophan
(2009)
Surface-enhanced Raman scattering (SERS) spectra of tryptophan (Trp) were obtained. A unique SERS spectrum of Trp, corresponding to the most stable conformation and orientation on the metal surface, is observed after a ...
Surface enhanced raman scattering of trans-p-coumaric and syringic acids
(2009)
The vibrational spectra of trans-p-coumaric acid (pCA) and syringic acid (SA) are discussed. The spectral fingerprints of the organic acids observed in the infrared and Raman spectra are assigned to fundamental vibrational ...
Raman characterization of pigments in painted beams and a wall painting discovered in the San Francisco church in Santiago, Chile
(2014)
A material characterization of two artworks discovered in the San Francisco Church, Santiago, Chile, was performed using micro-Raman spectroscopy. Structural painted beams and a wall painting that belong to the same time ...