Fig. 9From: A pioneer of acrylic painting: new insights into Carmen Herrera’s studio practiceLeft, Herrera’s Iberia #25 (1948), with indication of the sampling location for binding media analysis of the black paint. Right, Py-GC/MS chromatograms obtained upon derivatization with TMAH, showing that while S2 is based on oil and Pinaceae resin, S1 also contains n-BMABack to article page