Table 2.
pH and Nicotine Levels in Smokeless Productsa
| Product | Flavor (n) | pH | Total nicotine, mg/g dry weight | Unprotonated nicotine, % of total | Unprotonated nicotine, mg/g dry weight |
| Marlboro Snus | Rich (18) | 6.72 ± 0.14 | 24.84 ± 2.30 | 4.9 ± 1.6 | 1.23 ± 0.38 |
| Mild (18) | 6.68 ± 0.10 | 18.93 ± 1.89 | 4.5 ± 1.1 | 0.84 ± 0.21 | |
| Spearmint (17) | 6.79 ± 0.07 | 18.82 ± 1.69 | 5.6 ± 1.9 | 1.05 ± 0.16 | |
| Peppermint (18) | 6.81 ± 0.09 | 19.38 ± 2.10 | 5.8 ± 1.2 | 1.13 ± 0.81 | |
| Camel Snus | Mellow (17) | 7.38 ± 0.19 | 16.74 ± 2.56 | 19.6 ± 6.2 | 3.36 ± 1.32 |
| Frost (17) | 7.43 ± 0.23 | 16.46 ± 1.87 | 21.8 ± 7.8 | 3.58 ± 1.32 | |
| Robust (1) | 7.78 | 13.93 | 36.5 | 5.09 | |
| Winterchill (1) | 7.68 | 14.65 | 31.4 | 4.59 | |
| Camel Orbs | Mellow (2) | 8.12 ± 0.06 | 3.83 ± 0.15 | 55.4 ± 3.6 | 2.12 ± 0.06 |
| Fresh (2) | 8.08 ± 0.02 | 3.13 ± 0.09 | 53.6 ± 1.4 | 1.68 ± 0.09 | |
| Camel Sticks | Mellow (3) | 7.76 ± 0.12 | 4.51 ± 1.29 | 35.8 ± 6.6 | 1.67 ± 0.79 |
| Camel Strips | Fresh (3) | 7.88 ± 0.12 | 3.24 ± 0.49 | 41.9 ± 6.5 | 1.35 ± 0.22 |
| Ariva | Java (1) | 6.95 | 6.53 | 7.8 | 0.51 |
| Citrus (1) | 6.97 | 4.56 | 8.2 | 0.37 | |
| Cinnamon (1) | 6.85 | 5.14 | 6.3 | 0.33 | |
| Wintergreen (1) | 6.89 | 4.38 | 6.8 | 0.30 | |
| Stonewall | Java (1) | 7.10 | 7.17 | 10.6 | 0.76 |
| Wintergreen (1) | 7.10 | 7.06 | 10.6 | 0.75 |
Note. aArithmetic means ± SDs are shown for products/flavors for which two or more samples were available. Otherwise, results of single sample analyses are shown.