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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

Table 1.

Formed 2OHTA in E-Vapor (Mean ± Standard Deviation, nmol/puff, n = 5) from E-Liquids with Different Base Materials and Nicotine Concentrationsa

nicotine level
base material 0 mg/mL 3 mg/mL 12 mg/mL 24 mg/mL 36 mg/mL
VG 1.43 ± 0.32 1.80 ± 0.30 1.71 ± 0.49 1.10 ± 0.15 1.63 ± 0.62
PG&VG 1.82 ± 0.79 1.78 ± 0.71 1.88 ± 0.62 0.56 ± 0.94 1.48 ± 0.34
PG 1.08 ± 0.21 1.15 ± 0.70 0.89 ± 0.53 0.82 ± 0.54 0.70 ± 0.16
a

6.4 W power output, 1.5 mm air hole, 90 mL puff volume, 3.8 s puff duration, and 24 s puff interval used.