Table 3 Comparison of nicotine quantification results between NMR and HPLC methods
From: Electronic cigarettes: overview of chemical composition and exposure estimation
Sample number | Nicotine content [mg/ml] | |
|---|---|---|
NMR | HPLC | |
1 | 19.0 | 17.9 |
2 | 15.8 | 17.2 |
3 | 17.7 | 16.3 |
4 | 21.0 | 17.6 |
5 | n.d. | n.d. |
6 | n.d. | n.d. |
7 | n.d. | n.d. |
8 | n.d. | n.d. |
9 | n.d. | n.d. |
10 | 13.7 | 13.9 |
11 | 23.5 | 22.5 |
12 | 14.3 | 17.0 |
13 | 24.3 | 22.9 |
14 | 14.1 | 17.5 |
15 | 18.7 | 17.5 |