Table 5 Flavouring compounds and acids: Per-puff concentration of e-cigarette vapour emissions and respective method air blanks.

From: Chemical characterisation of the vapour emitted by an e-cigarette using a ceramic wick-based technology

Vapour constituent

Unit

ePod1.0

Air blank

BB57

BB18

Flavouring compounds

Puff count

Per consumable

50

50

50

1-Butanol

µg puff–1

 < LOD

 < LOQ

 < LOQ

Benzyl acetate

µg puff–1

 < LOD

 < LOD

 < LOD

Ethyl acetate

µg puff–1

 < LOD

 < LOD

 < LOD

Ethyl acetoacetate

µg puff–1

 < LOD

 < LOD

 < LOD

Furfural

µg puff–1

 < LOD

 < LOD

 < LOD

Isoamyl acetate

µg puff–1

 < LOD

0.76 ± 0.16

0.62 ± 0.04

Isobutyl acetate

µg puff–1

 < LOD

 < LOD

 < LOD

Methyl acetate

µg puff–1

 < LOD

 < LOD

 < LOD

Acids

Puff count

Per consumable

50

50

50

Acetic acid

µg puff–1

 < LOD

 < LOD

 < LOD

Propionic acid

µg puff–1

 < LOD

 < LOQ

 < LOD

  1. Values are presented as mean ± standard deviation (n = 5). LOD limit of detection, LOQ limit of quantification. More information about the analytical methods and respective LODs and LOQs are under the Supplementary Information (Tables S1 and S2).
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