Skip to main content

Table 2 Linearity and sensitivity of the analytical method for hydrazine

From: Analysis of hydrazine in smokeless tobacco products by gas chromatography–mass spectrometry

Validation parameter

Value

Linear range

8–170 ng/mL

Linear curve

y = 1.03 × 106 x − 1886.88

R 2

0.9996

Accuracy across 5 types of STP (% mean ± RSD recovery)

64.0%–105.2%

Accuracy across 4 types of STPa (% mean ± RSD recovery)

75.7%–105.2%

Precision across 5 types of STP (%RSD of repeatability of spike recovery)

7.8%–11.9%

LOQ for 5 types of STP

53.0 (ng/g)

LOQ for 4 types of STPa

26.5 (ng/g)

LOD

<10 (ng/g)

  1. aWithout the pellet product, which showed poor recovery.