Reference	Analytical equipment	Matrix	Units	Labeled nicotine	Quantified nicotine	Difference with label
This study 2018	GC-MS	Refill solution	mg/mL	0 - 12	0.2 - 17.0	−96% to 83%
This study 2018	GC-MS	Aerosol	mg/mL (13-puff)	0 - 12	0.04 - 1.74	NA
Joseph, et al. 2015	GC-MS/MS	Refill solution	mg/g	0 - 24	3.3 - 20.5	-45.0% to 3.8%
Davis et al., 2014	HP-LC	Refill solution	mg/mL	0 - 24	5.6 - 34.4	−12.9% to 89.7%
Cameron et al. 2014	LC-MS/MS	Refill solution	mg/mL	6 - 36	8.5 - 22.2	−66% to 42%
Goniewicz et al. 2014	GC-TSD	Refill solution	mg	0 - 24	0 - 25	−75% to 28%
Goniewicz et al. 2014	GC-TSD	Aerosol	mg/150-puff	0 - 24	0.3 - 8.7	NA
Etter et al. 2013	UHPLC-DAD, GC-FID, GC-MS	Refill solution	mg/mL	6 - 24	ND - 29.0	−15% to 21%
Trehy et al. 2011	HPLC-DAD	Refill solution	mg/mL	0 - 24	0 - 25.6	−100% to 100%
Trehy et al. 2011	HPLC-DAD	Aerosol	µg/100mL puff	0 - 24	0 - 43.2	NA