Abstract
The aim of this work was to evaluate the evaporation behavior of certain aroma compounds found in e-liquids. Since an e-liquid is evaporated, the aroma present can reach the lungs and could be absorbed into the body which may have long-term health effects above critical concentrations. Due to a lack in regulations, the sort and concentration of the compounds in sold e-liquids can vary. To capture the aroma compounds in the vapor, a smoking machine was developed. The resulting data represent the amount of aroma reaching the consumers’ lungs. The influence of the e-cigarette temperature, ranging from 100 to 315 °C, on the evaporation of benzaldehyde, estragole, and different terpenoids was examined. Additionally, the effect of the liquid base composition on the amount of aroma in the vapor was compared using the analysis of variances. The influence of high temperature, the type of e-cigarette, and the atomizer coil material, which could lead to oxidation of limonene and linalool in the vapor, is shown here.
Highlights
More and more consumers are using electronic cigarettes as an alternative nicotine delivery system
Nicotine and aroma compounds are added to this base, the latter influencing the smell of the produced vapor
Comparing the falcons as a washing bottle with a standard glass washing bottle leads to a lower coefficient of variation (CV) and a higher recovery (100% compared to 90%) of estragol
Summary
More and more consumers are using electronic cigarettes as an alternative nicotine delivery system. The e-liquid base used in these cigarettes consists of mainly propylene glycol and glycerin. These two compounds form an aerosol through the heated element—the atomizer—in the e-cigarette. Nicotine and aroma compounds are added to this base, the latter influencing the smell of the produced vapor. Different kinds of flavors are available to the consumer, ranging from a typical fruit aroma.
Sign-in/Register to view highlights & summary 
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call