Skip to main content
. Author manuscript; available in PMC: 2021 Jul 20.
Published in final edited form as: Chem Res Toxicol. 2020 Jun 18;33(7):1689–1697. doi: 10.1021/acs.chemrestox.9b00514

Figure 4.

Figure 4.

Chromatograms of PG/VG (vehicle control) and selected flavored e- liquids. A. PG/VG vehicle control chromatogram peaks were identified as PG (1.8 min) and VG (4.3 min). B. Apple Watermelon chromatogram flavoring agent peak was identified as triacetin (6.7 min). C. Strawberry Poptart chromatogram flavoring agent peaks were identified as triacetin (6.7 min), vanillin (7.2 min), and ethyl vanillin (7.6 min). D. Flamethrower chromatogram flavoring agent peak was identified as and trans-cinnamaldehyde (6.4 min).