Skip to main content
Heritage Science
Fig. 3 | Heritage Science

Fig. 3

From: Alexander Calder’s Half-Circle, Quarter-Circle, and Sphere (1932): a complex history of repainting unraveled

Fig. 3

Py-GC/MS chromatogram of sample S7 (likely original white). Py-GC/MS chromatogram obtained upon derivatization with TMAH of sample S7, i.e. single-layered white paint removed from the interior of the artwork’s wooden base on the proper right. Compounds identified in the chromatogram and fatty acid ratios suggest the presence of a drying oil binder, possibly linseed oil (palmitic acid methyl ester 74, 87, 43, 55, 41, 143, 75, 57, 69, 227, 270; stearic acid methyl ester 74, 87, 43, 55, 75, 143, 41, 57, 69, 298; azelaic acid dimethyl ester 152, 55, 74, 83, 111, 59, 143, 185, 69, 41, 217)

Back to article page