2026-04-13T01:58:00Zhttps://recercat.cat/oai/request

oai:recercat.cat:2072/3318602025-03-18T15:32:42Zcom_2072_220028com_2072_4427col_2072_220407

00925njm 22002777a 4500 dc Pitarch i Martí, Àfrica author Álvarez Pérez, A. (Aurelio) author Castro Ortiz de Pinedo, Kepa author Madariaga Mota, Juan Manuel author Queralt i Mitjans, Ignasi author 2012-03-21 A set of chromolithographs from the 19th century were analysed to identify the fillers and pigments used for their elaboration. Because of the delicacy of the chromolithographs, the research involved the use of Raman, Fourier‐transform infrared and energy dispersive X‐ray fluorescence spectroscopies for a complete characterization of the works on paper without removing any microsamples. Despite the high fluorescence of the samples when analyzed by Raman spectroscopy, in this paper, we demonstrated that ink spectra can be successfully enhanced by subtracting the spectra of the supporting background paper. The results of the study showed that, apparently, the lithographer used a limited range of common inorganic pigments from the 19th century (carbon black, chrome yellow, Prussian blue, red ochre, red lead and vermilion) together with organic pigments (indigo blue, gamboge and a red organic pigment). The study also found that despite the fact that during the 19th and early 20th century the use of mixtures of several pigments was a common practice, unusual admixtures were used for the preparation of some colours of the studied chromolithographs. http://hdl.handle.net/2072/331860 https://doi.org/10.1002/jrs.3055 Raman analysis assessed by Fourier‐Transformed infrared and X‐ray fluorescence spectroscopies: a multi‐analytical approach of ancient chromolithographs from the 19th century