Table presents the recovery of ∆ 9 -THC in the condensates of vaporized liquids compared to the ∆ 9 -THC concentrations measured in pure CBD liquids. The results indicate that for none of the settings investigated for the e-cigarette ∆ 9 -THC could be detected in the obtained condensates by using 1 H NMR spectroscopy. LC-MS/MS measurements have confirmed that an increase in ∆ -THC concentration at the highest energy setting did not occur.