2015 Collaborative Study for Determination of Glycerin, Propylene Glycol, Water and Nicotine in Collected Aerosol of E-Cigarettes
EVAP Technical Report
In 2015, the CORESTA E-Cigarette Task Force (changed to E-Vapour Sub-Group in 2016) conducted a study that included testing of commercial electronic cigarette products. This study was referred to as “2015 Aerosol Collaborative Study: Major Constituents” and preliminary results were presented in October 2015. The goal of this work was to compare results from multiple laboratories applying the CORESTA Recommended Method (CRM) No. 81 for aerosol collection and provide a draft analytical method for the determination of nicotine, propylene glycol (PG), glycerin, and water in collected aerosol.
The study results demonstrated that aerosol delivery for the study samples was relatively variable and that the analyte deliveries for a given product tended to be proportional to aerosol collected mass (ACM) deliveries. Evaluation of analyte results normalised to ACM delivery yielded acceptable r&R values. Results from the study control supported the accuracy of the method. Based on these results, the CRM No. 84 - Determination of Glycerin, Propylene Glycol, Water and Nicotine in the Aerosol of E-Cigarettes by Gas Chromatographic Analysis - was approved and published in March 2017.
CRM 81 - Routine Analytical Machine for E-Cigarette Aerosol Generation and Collection - Definitions and Standard Conditions (June 2015)