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. Author manuscript; available in PMC: 2020 Jun 17.
Published in final edited form as: Chem Res Toxicol. 2019 Apr 23;32(6):1087–1095. doi: 10.1021/acs.chemrestox.8b00400

Figure 2.

Figure 2

Formed 2OHTA concentrations in e-vapor for the nonflavored e-liquid and the eight flavored e-liquids. Low and high indicates 1% and 10% of flavoring ingredient in VG (by volume) except for the cinnamon flavor (0.1% and 1%) (n = 5, error bars indicate standard deviation). VG: nonflavored e-liquid, ST: strawberry, DR: dragon fruit, ME: menthol, CN: cinnamon, BG: bubble gum, BC: Bavarian cream, SC: sweet cream, and GC: graham cracker flavor. Device setting was 6.4 W and 1.5 mm air hole diameter, and vaping topography was 90 mL puff volume, 3.8 s puff duration, and 24 s puff interval.