HPLC-DAD法检测卷烟滤嘴中挥发性羰基化合物及其截留效率研究
Study on volatile carbonyl compounds in cigarette filter by HPLC-DAD technique and trapping efficiency
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摘要: 将高效液相色谱-二极管阵列检测法（HPLC-DAD）用于检测卷烟滤嘴中挥发性羰基化合物（甲醛、乙醛、丙酮、丙烯醛、丙醛、巴豆醛、2-丁酮和丁醛），采用体积比为1：1的乙腈与水混合溶剂振荡萃取卷烟滤嘴，萃取溶液与2，4-二硝基苯肼衍生化反应后进行HPLC-DAD分析，结果表明：滤嘴中8种羰基物的加标回收率在80.8%~115.7%之间；甲醛、乙醛、巴豆醛的日内及日间精密度较好，RSD均<10%.考察不同类型滤嘴对卷烟主流烟气中羰基化合物的截留效率，结果表明：滤嘴对8种羰基物总量的截留效率较低，对甲醛、巴豆醛截留效率较高（>10%），对其他几种羰基物的截留效率低（<7.0%）；不同类型滤嘴对甲醛截留效率为活性炭>醋纤≈纸>丙纤滤嘴；对巴豆醛的截留效率为活性炭 > 醋纤 > 纸 > 丙纤滤嘴.
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关键词:
- 卷烟滤嘴 /
- 挥发性羰基化合物 /
- 高效液相色谱-二极管阵列检测器(HPLC-DAD) /
- 截留效率
Abstract: A high performance liquid chromatography-diode array detector(HPLC-DAD)method was developed to determine volatile carbonyl compounds in cigarette filter including formaldehyde,acetaldehyde,propionaldehyde,acetone,acroein,crotonaldehyde,2-butanone and butyraldehyde.The cigarette filters were extracted by shaking with the mixed solution of acetonitrile and water(the volume ratio of 1: 1),then reacted with 2,4-dinitrophenylhydrazine,and analyzed by HPLC-DAD.The recoveries of 8 carbonyl compounds in cigarette filters were in the range of 80.8% and 115.7%.The precisions of intra-day and inter-day for formaldehyde,acetaldehyde and crotonaldehyde were good(RSD<10%).The trapping efficiency of carbonyl compounds in mainstream smoke for different kinds of cigarette filters was studied.The results showed that trapping efficiency of cigarette filter for total amounts of carbonyl compounds was low.Furthermore,formaldehyde and crotonaldehyde showed higher trapping efficiencies (>10%) compared with other carbonyl compounds(<7.0%).The trapping efficiencies of different types of cigarette filter to formaldehyde was activated carbon > acetate filter≈paper > polypropylene and that to crotonaldehyde was activated carbon > acetate filter > paper > polypropylene. -
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