논문 (학술지)
Quantification of nicotine and major solvents in retail electronic cigarette fluids and vaped aerosols
등록번호 | RPMS-2019-0190769178 | SCI 구분
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※구분 : SCI(SCIE포함), 비SCI |
SCI |
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저자명 (주·공동저자) | Dai Jun; Szulejko Jan E.; Jo Sang-Hee ※ 과제 참여정보와 일치하는 연구자 상세정보로 정확하지 않을 수 있습니다. |
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논문구분 | 국외전문학술지 | 학술지명 | MICROCHEMICAL JOURNAL |
ISSN | 0026-265X | 학술지 출판일자 | 2018-07-01 |
학술지 볼륨번호 | 140 | 논문페이지 | 262 ~ 268 |
학술지 임팩트팩터 | 0.0 | 기여율 | 50 % |
DOI | 10.1016/j.microc.2018.04.028 | ||
초록 | 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). |
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