[Кирилл Сызранский]

Сообщение от Liza

if the analysis showed the presence in the paint study of the presence of the phthalocyanine dye, then before the end of the 30-s work can not be dated. At the forum many times wrote that it is desirable to pass the medical examination at least 2 different locations. Also in St. Petersburg, the Hermitage is the specialists of the highest class (including the identification of phthalocyanine in the painting). Just do not know whether (and, most importantly is willing), Mr. Azadovsky there apply.

It seems that in the article about K. Azadovsky all phthalocyanine written:

With these and other perplexities I wrote to the Deputy Director for Science; asked to understand, cancel uneducated opinion, etc. In response - a stunning new paper.
In one of them reported that in gouache discovered the alleged "ftalotsianovye pigments" (in the official custody of them was not mentioned).
..........................

Many were interested in me and mysterious "ftalotsianovye pigments. It all was not easy - to conduct the necessary analysis of the paint layer can not in every laboratory. Finally luck: Institute of Precambrian Geology and Geochronology RAS in St. Petersburg produced a study of elemental composition and responded to a basic question: "Ftalotsianovyh dyes were found".