Table 1 Recovery and repeatability of measurements of spiked tobacco samples
From: Analysis of hydrazine in smokeless tobacco products by gas chromatography–mass spectrometry
Sample | Style | Hydrazine spike level (ng/g) | Percentage recovery, mean ± RSD (n = 5) | Overall percentage RSD |
|---|---|---|---|---|
Garrett | Dry snuff | 530 | 87.5 ± 5.1 | |
53.0 | 105.2 ± 4.7 | 10.7 | ||
26.5 | 96.7 ± 11.9 | |||
Stonewall Wintergreen | Pellet | 530 | 77.0 ± 5.0 | |
53.0 | 74.1 ± 6.9 | 10.8 | ||
26.5 | 64.0 ± 11.3 | |||
Ettan | Loose snus | 530 | 75.7 ± 8.3 | |
53.0 | 96.1 ± 6.9 | 11.9 | ||
26.5 | 83.1 ± 3.3 | |||
Days Work | Plug | 530 | 85.2 ± 4.1 | |
53.0 | 95.3 ± 8.5 | 7.8 | ||
26.5 | 92.2 ± 6.2 | |||
Taylor’s Pride | Chewing tobacco | 530 | 90.5 ± 12.0 | |
53.0 | 98.3 ± 3.2 | 9.15 | ||
26.5 | 99.7 ± 9.1 |