Novel nannofossils extraction methods from paintings, coupled with GC–MS for provenance determination and binder analysis

Abstract The use of calcareous nannofossils for provenance analysis is a new-old topic cultural heritage. Several studies have already mentioned it ceramic, but less paintings. Preparatory layers the paintings are often made with chalk, which composed microfossils. To extract assemblage from painting layer, we need to disaggregate it. method plunge micro-samples into water and heat if alone does not work. disaggregation process takes long time efficient in terms quantitative results. In this work, aimed develop that increases number determinable extracted micro-sample. As these samples valuable unique, decided combination analyses on disaggregated micro-sample should be tried most information We studied possibility binder determination by gas chromatography–mass spectrometer after extraction residual liquid disaggregation. presenting easy apply, has high rate paintings, low impact binders fatty acids their determination.