Table 1.
Flavors | ||||||||
---|---|---|---|---|---|---|---|---|
Tobacco | Creme brulee | Fruit punch | Mint | 30:70 | 60:40 | Citral | ||
E-liquid | PG:GLY | 29:71a | 31:69b | 31:69b | 30:70a | 30:70 | 60:40 | 60:40 |
(n = 3) | (n = 3) | (n = 3) | (n = 3) | |||||
Per puff | Nicotine (µg/puff) | 156.66 ± 47.65 | 169.91 ± 14.46 | 154.41 ± 48.84 | 188.42 ± 24.69 | n/a | n/a | n/a |
(n = 3) | (n = 3) | (n = 3) | (n = 3) | |||||
Free radicals (pmol/puff) | 5.90 ± 1.62a | 6.13 ± 1.12a | 5.47 ± 1.79a | 5.90 ± 0.63a | 7.92 ± 1.09a,b | 9.37 ± 1.16b | 10.87 ± 0.83b | |
(n = 3) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | ||
Formaldehyde (µg/puff) | 0.23 ± 0.10a | 0.12 ± 0.06a | 0.26 ± 0.08a | 0.19 ± 0.13a | 0.34 ± 0.04a | 0.31 ± 0.07a | 0.69 ± 0.21b | |
(n = 4) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | ||
Acetone (µg/puff) | 0.19 ± 0.08a | 0.17 ± 0.02a | 0.20 ± 0.05a | 0.22 ± 0.06a | 0.32 ± 0.12a,b | 0.57 ± 0.15b | 1.19 ± 0.16c | |
(n = 4) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | ||
Acetaldehyde (µg/puff) | n/d | n/d | n/d | n/d | 0.00 ± 0.01a | 0.05 ± 0.05a | 0.13 ± 0.03b | |
(n = 4) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | ||
Propionaldehyde (µg/puff) | n/d | n/d | n/d | n/d | n/d | 0.03 ± 0.03 | 0.05 ± 0.04 | |
(n = 4) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | ||
Per gram e-liquid consumed | Nicotine (mg/g) | 78.33 ± 23.82 | 63.72 ± 5.42 | 66.17 ± 20.93 | 94.21 ± 12.34 | n/a | n/a | n/a |
(n = 3) | (n = 3) | (n = 3) | (n = 3) | |||||
Free radicals (nmol/g) | 2.95 ± 0.81a | 2.56 ± 0.34a | 2.32 ± 0.18a | 2.95 ± 0.32a | 3.01 ± 0.28a | 4.68 ± 0.58b | 4.78 ± 0.73b | |
(n = 3) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | ||
Formaldehyde (µg/g) | 72.61 ± 35.88a | 42.88 ± 15.07a | 98.91 ± 34.24a,b | 67.12 ± 41.81a | 103.65 ± 14.84a,b | 97.39 ± 34.18a,b | 197.07 ± 83.48b | |
(n = 3) | (n = 3) | |||||||
(n = 4) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | ||||
Acetone (µg/g) | 59.66 ± 22.45a | 67.76 ± 24.94a | 75.16 ± 6.21a | 80.45 ± 38.25a | 95.23 ± 23.91a,b | 171.56 ± 39.32b | 327.48 ± 37.47c | |
(n = 4) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | ||
Acetaldehyde (µg/g) | n/d | n/d | n/d | n/d | 0.82 ± 1.44a | 14.92 ± 15.30a,b | 36.70 ± 14.24b | |
(n = 4) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | ||
Propionaldehyde (µg/g) | n/d | n/d | n/d | n/d | n/d | 8.07 ± 8.99 | 14.09 ± 14.22 | |
(n = 4) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | (n = 3) | (n = 3) |
Values are means ± SD. Different letters indicate significant differences (p < .05) between flavors. n/d represents that no quantifiable amounts were observed with our setup.