No | Compounds | Percentage (%) | Classification | |
|
| e-liquid (n = 72) | Aerosol (n = 72) |
|
1 | Propylene glycol | 100.00 | 100.00 | Alcohol |
2 | Glycerin | 98.61 | 100.00 | Alcohol |
3 | Piperidine | 70.83 | 68.06 | Amine |
4 | Nicotine | 62.50 | 68.06 | Pyridine |
5 | Ethyl maltol | 44.44 | 55.56 | Ketone |
6 | Vanillin | 41.67 | 36.11 | Aldehyde |
7 | 1-Butanol, 3-methyl-, acetate | 38.89 | 41.67 | Ester |
8 | Ethyl Acetate | 33.33 | 51.39 | Ester |
9 | 3-Hexen-1-ol | 27.78 | 15.28 | Alcohol |
10 | Butanoic acid, 2-methyl-, ethyl ester | 26.39 | 31.94 | Ester |
11 | 1,2,3-Propanetriol, 1-Acetate | 26.39 | 25.00 | Ester |
12 | 2(3H)-Furanone, 5-hexyldihydro- | 20.83 | 41.67 | Ketone |
13 | 2(3H)-Furanone, 5-heptyldihydro- | 16.67 | 27.78 | Ketone |
14 | Maltol | 16.67 | 15.28 | Ketone |
15 | Triacetine | 16.67 | 12.50 | Ester |
16 | Menthol | 15.28 | 13.89 | Alcohol |
17 | Acetic acid, butyl ester | 13.89 | 6.94 | Ester |
18 | 1,2,3-Propanetriol, 1,2-Diacetate | 13.89 | 5.56 | Ester |