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Fig. 8 | Heritage Science

Fig. 8

From: A multi-analytical study of the palette of impressionist and post-impressionist Puerto Rican artists

Fig. 8

Chromatographic and mass spectrometric results obtained for sample SCR2 (painting CAM-1329): a UV–Vis chromatogram extracted at 350 nm and UV–Vis absorption spectrum (insert) of the compound detected at 9.8 min and identified as PY1 (Hansa Yellow G—C.I. 11680); b extracted ion chromatogram obtained in positive ionization mode for m/z 341.124 corresponding to [M + H]+ of PY1 (molecular structure of the neutral molecule also reported); c corresponding tandem mass spectrum of [M + H]+ of PY1

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