| Title: | Quantitation of Flavor Compounds in Refill Solutions for Electronic Cigarettes Using HS-GCxIMS and Internal Standards |
| Author(s): | Augustini A; Sielemann S; Telgheder U; |
| Address: | "Hamm-Lippstadt University of Applied Sciences, Marker Allee 76-78, 59063 Hamm, Germany. Faculty of Chemistry, Instrumental Analytical Chemistry, University of Duisburg-Essen, Universitatsstrasse 5, 45141 Essen, Germany" |
| DOI: | 10.3390/molecules27228067 |
| ISSN/ISBN: | 1420-3049 (Electronic) 1420-3049 (Linking) |
| Abstract: | "New regulations on the use of flavor compounds in tobaccoless electronic cigarettes require comprehensive analyses. Gas chromatography coupled ion mobility spectrometry is on the rise as an analytical technique for analyzing volatile organic compounds as it combines sensitivity, selectivity, and easy usage with a full-range screening. A current challenge is the quantitative GCxIMS-analysis. Non-linear calibration methods are predominantly used. This work presents a new calibration method using linearization and its corresponding fit based on the relation between the reactant and analyte ions from the chemical ionization. The analysis of e-liquids is used to compare the presented calibration with an established method based on a non-linear Boltzmann fit. Since e-liquids contain matrix compounds that have been shown to influence the analyte signals, the use of internal standards is introduced to reduce these effects in GCxIMS-analysis directly. Different matrix mixtures were evaluated in the matrix-matched calibration to improve the quantitation further. The system's detection and quantitation limits were determined using a separate linear calibration. A matrix-matched calibration series of 29 volatile compounds with 12 levels were used to determine the concentration of these substances in a spiked, flavorless e-liquid and a banana-flavored e-liquid, validating the quality of the different calibrations" |
| Keywords: | *Electronic Nicotine Delivery Systems Gas Chromatography-Mass Spectrometry/methods Reference Standards Calibration *Volatile Organic Compounds/analysis e-liquids electronic cigarettes flavor compounds gas chromatography headspace ion mobility spectrometry; |
| Notes: | "MedlineAugustini, Alexander L R M Sielemann, Stefanie Telgheder, Ursula eng ZFW/Hamm-Lippstadt University of Applied Sciences/ Switzerland 2022/11/27 Molecules. 2022 Nov 20; 27(22):8067. doi: 10.3390/molecules27228067" |
