为探索不同抽吸参数下电子烟烟气总粒相物(TPM)传输量的变化,考察了ISO和加拿大卫生部深度抽吸(HCI)2种抽吸模式、3种抽吸曲线、2~5 s抽吸时间和1~100口抽吸口数对电子烟主流烟气中TPM传输量的影响。结果表明:1抽吸时间和电子烟TPM的产生速率是影响电子烟传输量的主要因素,其他抽吸参数对电子烟烟气传输量影响的程度较小。2较高的抽吸气流速率易使电子烟电热丝的工作温度低于烟液中主要溶剂之一——甘油的沸点,从而降低烟气传输量。3单口电子烟烟气TPM随抽吸口数序号的增大而明显递减。电子烟应以3~4 s抽吸持续时间、矩形抽吸曲线、55 m L抽吸容量及缓慢平稳的抽吸方式收集抽吸1~30口的TPM进行烟气分析。
【英文摘要】
To evaluate the influences of different puffing parameters on TPM delivery in aerosol of e-cigarettes,the TPMs released from e-cigarettes were collected under ISO and Health Canada Intensive(HCI) smoking regimens, using 3 puffing profiles consisting of puffing time of 2-5 s per puff and 1-100 puffs. Three types of e-cigarette were used in this study: two were rechargeable and one was disposable. The results showed that: 1)The major factors affecting the TPM delivery were puff time and the TPM releasing rate...
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