a simple approach to analysing trace metals in aerosols produced by e-cigarettes.

Introduction:
This text provides an overview of a study that analyzed the levels of trace metals produced by different atomizers used in e-cigarettes. The study used a sample introduction technique based on the collection of aerosols produced by e-cigarettes in nitric acid, using glass midget impingers. Collected metals were then identified using an inductively coupled plasma-mass spectrometer (ICP-MS), which allowed detection in the low ppb range.

Key Points:

* E-cigarettes are marketed as safer than conventional cigarettes, but may still result in inhalation of potentially toxic or carcinogenic substances, including metals produced by the heating element.
* The study found considerable variation in the levels of metals between both manufacturers of atomizers and also between different batches of coils.
* Variation is likely to be even greater if the ability of users to customize some types of e-cigarettes is considered.
* The proposed method could be of use in investigating the risk of inhalation of toxic metals from e-cigarette use, but there are limitations in terms of possible interferences from other metallic components in the e-cigarettes.

Main Message:
The study suggests that the proposed method could be useful in analyzing the levels of trace metals in e-cigarette aerosols, but there are limitations that need to be considered. The findings indicate that there is considerable variation in the levels of metals produced by different atomizers and batches of coils, which could have implications for the health risks associated with e-cigarette use. Further research is needed to fully understand the risks and to develop appropriate regulatory measures.

haworth-Duff a, Parkes GMB, Reed NJ. a simple approach to analysing trace metals in aerosols produced by e-cigarettes. Drug testing and analysis. Published online November 29, 2022. doi:10.1002/dta.3416