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Article Publish Status: FREE
Abstract Title:

Dihydroxyacetone levels in electronic cigarettes: Wick temperature and toxin formation.

Abstract Source:

Aerosol Sci Technol. 2018 ;52(4):370-376. Epub 2018 Jan 23. PMID: 30686853

Abstract Author(s):

Shawna Vreeke, Tetiana Korzun, Wentai Luo, R Paul Jensen, David H Peyton, Robert M Strongin

Article Affiliation:

Shawna Vreeke

Abstract:

Recently, we reported the presence of dihydroxyacetone (DHA), the active ingredient in sunless tanners, in the aerosol of an electronic cigarette. DHA has been shown to react with DNA. The FDA restricts the use of DHA to external application only. It states that it should not be inhaled, ingested, or come into contact with any areas containing mucous membranes, due to unknown risk. Herein, the quantification of DHA in the aerosols of three brands of e-cigarettes has been carried out. These included two devices with horizontal heating coil configurations as well as one with a sub-ohm resistance vertical heating coil. In order to understand and begin to address the origin of DHA and related aerosol products, the wicking properties of the three e-cigarettes were compared. DHA levels were analyzed by a combination of GS/MS andH NMR. DHA was found in all three e-cigarettes, with substantially less in the sub-ohm, vertical coil device as compared to the horizontal coil devices (e.g., 0.088g/puff vs. 2.29g/puff, respectively). Correspondingly, the temperature of the wet layer of the wick for the vertical coil was relatively stable, compared to the wicks for the horizontal coils, upon increasing battery power output. This result is in agreement with prior studies of e-cigarette wicking efficiency and aerosol toxin formation. The temperature measurements reported are a simple means for comparing devices with different design properties during operation.

Study Type : In Vitro Study
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