Table 1.

GC-MS settings used for qualitative analysis of the e-vapors

Instrument Parameters
Column	HP-5MS UI (30 m × 0.250 mm × 0.25 μm)
Carrier gas flow	He @ 1.00 mL/min (constant flow)
Inlet temperature	250°C
Oven program	Ramp 1: 40°C to 170°C @ 10°C/min; hold 2 min; Ramp 2: 8°C/min to 250°C; Ramp 3: 25°C/min to 320°C; hold 5 min.
Injection volume	250 µL, split (20:1)
Transfer line temperature	290°C
MS source	Single quadrupole, EI @ 250°C
Solvent delay	1.00 min
MS acquisition range	30–450 amu from 1 min to 32.80 min