Liquid- and Vapor-Phase Analysis of E-Cigarette Liquids by Mass Spectrometry

摘要

In general, many of the same species which were identified using GC-MS catalogue search were identified using LTPI-MS in the E-liquids analyzed, most likely due to the fact that both are best for analyzing volatile compounds. However, ESI-MS seems to detect a variety of other species which are not observed using either of the other analytical methods. Many of these compounds fall in a higher mass range than do the species observed using GC-MS and LTPI-MS and may represent less volatile species. Further work is required to identify these ions.