Nicotine concentration in IQOS aerosol, cigarette mainstream smoke and IQOS tobacco
| Material | Total nicotine (mg) Mean±SD |
| IQOS aerosol (n=3) | |
| Particle phase | 0.67±0.02* |
| Gas phase | BLQ |
| Marlboro Red MS (n=3) | |
| Particle phase | 1.07±0.05* |
| 1R6F MS (n=3) | |
| Particle phase | 0.65±0.04 |
| Used IQOS HeatStick (residual; n=3) | 3.16±0.67 |
| Unused IQOS HeatStick (n=4) | 3.92±0.11 |
*P=0.0006 between starred values.
BLQ, below level of quantification; MS, mainstream smoke.