Table 5

Tobacco alkaloids reported in refill solutions, cartridges and aerosols of e-cigarettes

Literature	Matrix	Units	Cotinine	Myosmine	Anatabine	Anabasine	β-Nicotyrine	Nornicotine
Etter et al13	Refill solution	% of nicotine	0.04 to 0.21	0.05 to 0.42	0.13 to 1.56	0.04 to 0.45	0.06	0.02 to 0.10
Trehy et al7	Cartridge	mg/cartridge	N.D.	<LOQ to 0.08	N.D. to 0.82	N.D. to <LOQ	N.D. to <LOQ	N.T.
Trehy et al7	Aerosol	mg/30×100 mL puffs	N.D.	N.D.	N.D. to <LOQ	N.D.	N.D.	N.T.
Westenberger9	Cartridge	mg/cartridge	N.D. to <LOQ	N.D. to <LOQ	N.A.	N.D. to <LOQ	N.D. to <LOQ	N.A.
Westenberger9	Aerosol	μg/100 mL puff	N.D. to 0.4	N.T.	N.T.	N.T.	N.D. to D.	N.T.
Westenberger10	Refill solution	μg/mL	N.D. to 178	36 to 71	18 to 57	N.D.	1 to 6	N.T.

<LOQ, below the limit of quantitation but above the limit of detection; D., detected; N.A., not available; N.D., not detected; N.T., not tested by the study.