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烟用水基型乳胶中苯系物的GC/MS/SIM测定

Determination of Benzene and its Homologues in Water-based Emulsion Adhesives for Cigarette with Gas Chromatography/Mass spectrometry Under Selected Ion Monitoring Mode

  • 摘要: 为了测定烟用水基型乳胶中的苯系物,分别用乙酸甲酯、乙酸乙酯、乙酸丁酯、丙二醇一甲醚、乙二醇一甲醚、N,N-二甲基甲酰胺、二甲亚砜、正己烷、环戊烷、丙酮、环己酮进行了溶解烟用水基型乳胶试验,并采用气相色谱/质谱/选择离子监测法测定了13种烟用水基型白乳胶中的苯、甲苯、乙苯、对二甲苯、间二甲苯、邻二甲苯、苯乙烯。结果表明:①二甲亚砜是烟用水基型白乳胶的适宜溶剂;②方法的回收率为96%~103%,RSD为4.65%~7.27%,定量限为0.06~0.09μg/g;③所测烟用水基型白乳胶样品中7种苯系物的总含量为0.73~7.94μg/g,苯、甲苯+二甲苯含量分别为0.29~4.86和0.12~5.76μg/g。

     

    Abstract: In order to determine benzene and its homologues in water-based emulsion adhesives for cigarette, the adhesive was dissolved by methyl acetate, ethyl acetate, butyl acetate, propylene glycol monomethyl ether, ethylene glycol monomethyl ether, N, N-dimethylformamide, dimethyl sulfoxide, n-hexane, cyclopentane, acetone and cyclohexanone, respectively. The benzene, toluene, ethylbenzene, o or m or p-xylene and styrene in 13 water-based emulsion adhesive samples were determined by gas chromatography and mass spectrometry under selected ion monitoring mode. The results showed that: 1) dimethyl sulfoxide was preferable as a solvent for cigarette emulsion adhesives;2) the recoveries of the compounds were from 96% to 103% with RSDs of 4.65% to 7.27% and the limits of detection of 0.06 to 0.09 μg/g;and 3) the total contents of the said benzene homologues in adhesive samples were from 0.73 to 7.94 μg/g, the contents of benzene and xylene+toluene were from 0.29 to 4.86 and from 0.12 to 5.76 μg/g, respectively.

     

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