Figure 3. LC/MS analysis of the nicotine concentrations in the samples of HTPE and CSE.
(A) Chromatogram of HTPE in PBS.
(B) Chromatogram of CSE in PBS.
Analyses performed by Shimadzu Techno-Research, Inc., Kyoto, Japan.
LC/MC: liquid chromatography-mass spectrometry; HTPE: heated tobacco product extract; CSE: cigarette smoke extract; PBS: phosphate-buffered saline