A study published Thursday in Addiction, the journal for the Society
for the Study of Addiction, has found that the contents of e-liquid are
“close to what is stated on the label.”
The study, “Analysis of refill liquids for electronic cigarettes,”
was performed by Jena-Francois Etter of the Institute of Social and
Preventative Medicine at the University of Geneva, Switzerland, and Eva
Zäther and Sofie Svensson of the Analytical Development R&D
Department of McNeil AB of Helsingbod, Sweden. Researchers analyzed 20
samples of 10 of the most popular brands of e-liquid with gas and liquid
chromotography, looking for discrepancies in nicotine content, as well
as for the presence of ethylene glycol and diethylene glycol.
Their conclusion: nicotine levels were within a few percent of the
amount on the label, and they found no ethylene glycol or diethylene
glycol in any of the samples. While they did find other impurities, they
state that all of them were “below the level where they would be likely
to cause harm.”
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