摘要
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。
Eightmajor carbonyl compounds in seven cigarettes were analyzed by using high performance liquid chromatography （I-IPLC） with 2, 4-dinitrobenzene hydrazine （DNPH） as derivatization reagent, and the distributions of eight carbonyl compounds in mainstream smoke, sidestream smoke （vapor phase and particle phase） and filter were studied. The results showed that： （1） The total contents ofcarbonyl compounds in seven cigarettes were between 3 971.6--5 375.4 μg/cig; The distribution level of carbonyl compounds was sidestream smoke （vapor phase） 〉 mainstream smoke〉sidestream smoke （particle phase）〉filter; The content of acetaldehyde was the highest in mainstream smoke, and acetone was the second; （2） The content of carbonyl compounds in mainstream smoke had an obvious difference asthe change of tar, but the total content of carbonyl compounds had little difference; To some extent, the content of carbonyl compounds in mainstream smoke and filter increased as the tar increased, respectively; （3） The cigarette filters had a higher filtration effect to crotonaldehyde and formaldehyde than the other carbonyl compounds, and had a lower filtration effect to acetaldehyde, acetone and propionaldehyde. The tested filters had an unobvious filtration effect to carbonyl compounds with less carbon atoms.
出处
《食品工业》
CAS
北大核心
2017年第1期289-292,共4页
The Food Industry
关键词
高效液相色谱
羰基化合物
主流烟气
侧流烟气
滤嘴
high performance liquid chromatography （HPLC）
carbonyl compounds
mainstream smoke
sidestream smoke
filter
