Table 1.
pH, protonated and unprotonated nicotine in Blu and JUUL e-cigarettes
Nicotine Concentration (mM) | Calculated pH | Measured pH | Protonated Nicotine (mM) | Unprotonated Nicotine (mM) | |
---|---|---|---|---|---|
Blu | 148 (free base) | 10.53 | 8.26 (SD 0.01) | 44.3 | 103.7 |
JUUL | 308 (benzoic salt) | 6.05 | 6.0 (SD 0.03) | 304 | 4 |