کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7640640 1494854 2018 26 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Quantification of nicotine and major solvents in retail electronic cigarette fluids and vaped aerosols
ترجمه فارسی عنوان
اندازه گیری نیکوتین و حلال های عمده در مایعات سیگار الکترونیکی خرده فروشی و آئروسل های رنگی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
The main ingredients used in e-liquid formulations (propylene glycol (PG), vegetable glycerol (VG), and nicotine (Nic)) in a total of 16 retail e-liquids (half containing nicotine)) were analyzed by an analytical method developed recently by our research group. The measured nicotine concentrations in e-liquids varied in a range of 5.7 to 14.7 mg g−1 and differed up to 9.0% from the declared label concentrations (two tailed P = 0.5424 at a 0.05 confidence level). The concentrations of Nic and PG in vaped aerosol samples were lower (by an average of 12.7% and 17.4%, respectively) than those in e-liquid samples, while the opposite was true for VG (1.95% higher on average). The composition (w/w) of 16 retail e-liquids varied: 82.6 to 94.9% PG + VG (n = 16), 0.68 to 1.63% nicotine (n = 8), and 5.1 to 16.2% unidentified compounds (water, flavors, etc., n = 16). For the corresponding vaped aerosols, the results were: 75.4 to 92.1% PG + VG (n = 16), 0.57 to 1.47% nicotine (n = 8), and 7.86 to 24.0% unidentified compounds (water, flavors, etc., n = 16). The relative proportion of unidentified compounds in vaped aerosols was two times higher than those in e-liquids. The mean nicotine vaping emission factor (39.6 μg puff−1) was about two times lower than that of a Kentucky 2R4F reference cigarette (75 μg puff−1). The measured e-cigarette vaping emission factors varied in a range of 22.5-61.5 μg Nic puff−1 (n = 8), 1.04-2.45 mg PG puff−1 (n = 16), and 1.35-2.09 mg VG puff−1 (n = 16).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microchemical Journal - Volume 140, July 2018, Pages 262-268
نویسندگان
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