Fig. 9
From: A multi-analytical study of the palette of impressionist and post-impressionist Puerto Rican artists
![Fig. 9](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40494-022-00683-9/MediaObjects/40494_2022_683_Fig9_HTML.png)
Chromatographic and mass spectrometric results obtained for sample SCR3 (painting CAM-1328): a UV–Vis chromatogram extracted at 350 nm and UV–Vis absorption spectrum (insert) of the compound detected at 10.4 min and identified as PY3 (Hansa Yellow 10G—C.I. 11710); b extracted ion chromatogram obtained in positive ionization mode for m/z 395.031 corresponding to [M + H]+ of PY3 (molecular structure of the neutral molecule also reported); c corresponding tandem mass spectrum of [M + H]+ of PY3