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Table 6 Coefficient of variation for inter- and intra-day analysis

From: Evaluation of an online, real-time, soft-photon ionisation time-of-flight mass spectrometer for mainstream tobacco smoke analysis

AnalyteGas standard rangeIntra-day CV, %Inter-day CV, %
MeanRangeMean, %Range, %
Acetaldehyde199.5–200014.38.4–25.214.58.6–26.1
Acetone50.8–499.97.63.7–14.57.24.7–12.1
1,3-Butadiene9.7–96.312.86.9–26.913.07.0–23.6
2-Butanone21.2–99.29.97.0–14.89.96.2–14.9
Benzene10–78.319.15.2–18.18.65.4–15.8
Isoprene98.6–594.63.72.5–6.54.23.1–5.7
Toluene15.2–99.57.04.4–12.87.04.8–12.0
  1. Intra-day CV was calculated from data obtained on day 1; inter-day CV was calculated from data obtained on days 1–3