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| sample no. | content
of nicotine, μMa |
|
|---|---|---|
| potentiometry | GC | |
| volunteer 1 (25–30 cigarette/day) | 18.3 ± 1.3 | 16.8 ± 0.2 |
| volunteer 2 (30–40 cigarette/day) | 21.6 ± 2.2 | 20.8 ± 0.4 |
| volunteer 3 (40–50 cigarette/day) | 23.4 ± 1.1 | 21.4 ± 0.5 |
Average of five measurements.
