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Pigment and Binder Concentrations in Modern Paint Samples Determined by IR and Raman Spectroscopy
Author(s) -
Wiesinger Rita,
Pagnin Laura,
Anghelone Marta,
Moretto Ligia M.,
Orsega Emilio F.,
Schreiner Manfred
Publication year - 2018
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201713413
Subject(s) - palette (painting) , alkyd , raman spectroscopy , pigment , conservation , materials science , polymer science , analytical chemistry (journal) , chemistry , chromatography , art , optics , nanotechnology , visual arts , environmental science , coating , physics , environmental planning
Knowledge of the techniques employed by artists, such as the composition of the paints, colour palette, and painting style, is of crucial importance not only to attribute works of art to the workshop or artist but also to develop strategies and measures for the conservation and restoration of the art. While much research has been devoted to investigating the composition of an artist's materials from a qualitative point of view, little effort has been made in terms of quantitative analyses. This study aims to quantify the relative concentrations of binders (acrylic and alkyd) and inorganic pigments in different paint samples by IR and Raman spectroscopies. To perform this quantitative evaluation, reference samples of known concentrations were prepared to obtain calibration plots. In a further step, the quantification method was verified by additional test samples and commercially available paint tubes. The results obtained confirm that the quantitative method developed for IR and Raman spectroscopy is able to efficiently determine different pigment and binder concentrations of paint samples with high accuracy.