Universal electronic-cigarette test: physiochemical characterization of reference e-liquid
In: Tobacco Induced Diseases, Jg. 15 (2017-02-01), Heft February
Online
academicJournal
Zugriff:
Introduction Despite the rising health and safety concerns of e-cigarettes, a universal e-cigarette testing method is still in its early developmental stage. The aim of this study was to develop an e-liquid Reference Material that can be used to improve accuracy and reproducibility of research results, and advance health risk assessment of e-cigarette products. Material and Methods E-liquid Reference Material was developed by purity assessment, gravimetric measurement, homogeneity testing, and stability testing with material and instrument traceability (adopted from ISO 35:2006E). Results Homogeneity tests showed e-liquid Reference Material requires ≥ 1 h rotation at a speed of 5 rpm to reach complete homogeneity. Stability tests showed homogeneity is intact for at least 2 weeks without secondary separation, and e-liquids are stable in 21 °C–50 °C thermocycling conditions up to 72 h. A change in the e-liquid color was first observed at day seven, and progressed to 2- and 16 - fold increase in absorbance by one and 6 months respectively. We found that e-liquids do not have inherent material instabilities such as immiscibility or secondary separation. However, discrepancies in concentration and composition arose mainly due to viscosity of propylene glycol and glycerin. Aerosol generated from the e-liquid Reference Material had 16 chemical-byproducts and was composed of ~634,000 particles of which 38% were Fine Particulate Matters (
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Universal electronic-cigarette test: physiochemical characterization of reference e-liquid
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Autor/in / Beteiligte Person: | Kim, Jeffrey J. ; Sabatelli, Nicole ; Tutak, Wojtek ; Giuseppetti, Anthony ; Frukhtbeyn, Stanislav ; Shaffer, Ian ; Wilhide, Joshua ; Routkevitch, Denis ; Ondov, John M. |
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Zeitschrift: | Tobacco Induced Diseases, Jg. 15 (2017-02-01), Heft February |
Veröffentlichung: | European Publishing, 2017 |
Medientyp: | academicJournal |
ISSN: | 1617-9625 (print) |
DOI: | 10.1186/s12971-017-0119-x |
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