论文部分内容阅读
选择2,4-二硝基苯肼作为衍生化试剂,采用高效液相色谱(HPLC)法研究了7个卷烟燃烧后生成的8种羰基化合物的含量及在主流烟气、侧流烟气气相物、侧流烟气粒相物和滤嘴中的分布情况。结果表明:18种羰基化合物的总量为3 971.6~5 375.4μg/支,含量分布规律为侧流气相>主流烟气>侧流粒相>滤嘴,主流烟气中羰基化合物以乙醛含量最高,丙酮次之;2随着焦油量的变化,主流烟气中羰基化合物的含量差别较大,而羰基化合物总量的差异不明显;一定程度上,主流烟气和滤嘴中的羰基化合物含量分别与焦油量成正比;3通过测定滤嘴中羰基化合物的含量,表明对于巴豆醛和甲醛的截留率相对较高,对于乙醛、丙酮和丙醛的截留率相对较低;滤嘴对于卷烟中的低级羰基类化合物的过滤效果并不明显。
Using 2,4-dinitrophenylhydrazine as a derivatization reagent, the contents of eight carbonyl compounds generated after combustion of seven cigarettes were studied by high performance liquid chromatography (HPLC) Matter, sidestream smoke particulate matter and the distribution of the filter. The results showed that the total amount of 18 carbonyl compounds ranged from 3 971.6 to 5 375.4 μg / branch, and the content distribution was sidestream gas phase> mainstream smoke> sidestream phase> filter. The carbonyl compounds in the mainstream smoke contained acetaldehyde The highest, followed by acetone; 2 with the change of tar content, mainstream flue gas carbonyl compounds in the larger differences, while the total amount of carbonyl compounds was not obvious; to some extent, the mainstream of flue gas and filter carbonyl compounds The content of which is proportional to the amount of tar, respectively; 3 the rejection of acetaldehyde, acetone and propionaldehyde is relatively high with the rejection of crotonaldehyde and formaldehyde being relatively high by the determination of carbonyl compounds in the filter; The filtration effect of lower carbonyls in cigarettes is not obvious.