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Heritage Science
Fig. 5 | Heritage Science

Fig. 5

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

Fig. 5

Quantification of calcareous nannofossils from the micro-sample MS01 disaggregated by various solvents. Dissolution with water (H2O) was compared with peroxide (H2O2) and the two micro-emulsions (ME1, ME2). The impact of the temperatures of 20 °C and 70 °C is also shown (“H2O-20” = water at 20 °C or “H2O-70” = water at 70 °C). The ratio of whole and broken nannofossils in the micro-samples is expressed as the percentage of whole nannofossils. Ref is the value of this ratio in the original rock material

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