Pyrolysis gas chromatography mass spectrometry of two green phthalocyanine pigments and their identification in paint systems

Py/GC-MS of green acrylic and oil paint systems containing PG7 and PG36 was also performed in order to verify the possibility to detect low amounts of copper phthalocyanine pigments in complex matrices. Although not all the pyrolysis products of the reference green copper phthalocyanine pigments could be detected, efficient identification of these pigments could be accomplished thanks to the presence of specific markers.