Abstract
In order to accurately determine the contents of alcohols in e-cigarette emissions, a gaschromatography-mass spectrometry(GC/MS) method was developed for simultaneously determining 1,2-propylene glycol, 1,3-butanediol, glycerol, diethylene glycol and triethylene glycol, wherein 1,4-butanediolwas used as an internal standard. Sixteen samples of e-cigarette were tested by the developed method. Theresults showed that: 1) The limit of detection and limit of quantitation were 0.08-0.32 and 0.27-1.07 μg/puff, respectively; the recoveries were 90.0%-99.5% with the relative standard deviations(RSD) rangedfrom 1.20% to 4.93%. 2) 1,2-Propylene glycol and glycerin were detectable, while diethylene glycol andtriethylene glycol were undetectable in all samples; and 1,3-butanediol was detectable in four samples. 3)This method was suitable for the qualitative and quantitative determination of 1,2-propylene glycol, 1,3-butanediol, glycerol, diethylene glycol, triethylene glycol in e-cigarette emissions.
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