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Table 4 Mean deposited mass (µg/cm2/puff) ± standard deviation and mean nicotine concentration (ng/cm2/puff) ± standard deviation from the RM20S; three QCMs per chamber and three replicate experiments per product and dilution

From: Application of dosimetry tools for the assessment of e-cigarette aerosol and cigarette smoke generated on two different in vitro exposure systems

Dilution (1:X) 1:5 1:10 1:20 1:40
Product 3R4F EPen 3R4F EPen 3R4F EPen 3R4F EPen
Mean mass 0.51 ± 0.09 0.85 ± 0.21 0.26 ± 0.05 0.37 ± 0.14 0.13 ± 0.03 0.18 ± 0.02 0.08 ± 0.01 0.10 ± 0.01
Mean mass ratio 0.60 0.70 0.74 0.81
Mean (nicotine) 16.76 ± 7.42 5.61 ± 2.78 10.17 ± 4.13 2.83 ± 1.03 4.14 ± 1.25 1.61 ± 0.44 2.47 ± 0.84 1.23 ± 0.77
Mean (nicotine) ratio 2.99 3.60 2.58 2.01
  1. Ratios are between the cigarette and the e-cigarette at each dilution (3R4F/ePen)