C. Defeyt, P. Vandenabeele, B. Gilbert, J. Van Pevenage, R. Cloots and D. Strivay Contribution to the identification of α-, β- and ε-copper phthalocyanine blue pigments in modern artists' paints by X-ray powder diffraction, attenuated total reflectance micro-fourier transform infrared spectroscopy and micro-Raman spectroscopy Journal of Raman Spectroscopy 43
Dry pigments of α-, β- and ε-CuPc have been investigated by X-ray powder diffraction, attenuated total reflectance micro-Fourier transform infrared spectroscopy and micro-Raman spectroscopy. On the basis of the results obtained for dry pigments, several polymorphic markers have been highlighted for the CuPc polymorphs distinction in artists' paints. The reliability of the polymorphic markers is demonstrated with acrylic, vinylic, alkyd, arabic gum and oil-based paint samples.
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