卷烟包装材料中残留的挥发性有机物

以二氯甲烷作内标,采用顶空气相色谱法测定了卷烟硬包装盒、软包装盒、接装纸、铝箔纸、卡纸的8种顶空成分:乙酸乙酯、正丁醇、苯、4-甲基-2-戊酮、甲苯、乙酸丁酯、邻二甲苯、间二甲苯和对二甲苯,并讨论了测定条件对测定结果的影响。结果表明:该法的回收率为94%～111%,变异系数为1.4%～2.3%,检测限为0.001～0.006mg/m2,适合于批量卷烟包装材料顶空挥发性有机物的快速分析;所测定的样品中卷烟硬包装盒和软包装盒所含的成分较多,且量较大,尤其是软盒,含有较多的苯、甲苯、邻二甲苯和对二甲苯;接装纸含的成分较多,但含量较低;铝箔纸含的成分较少,其含量也较低;卡纸虽然所含成分不多,但其4-甲基-2-戊酮和乙酸丁酯含量最高。

Chromatographic Determination of VOC Residues in Cigarette Packing Material

Eight volatile organic components (VOCs), including ethyl acetate, n-butyl alcohol, benzene, 4-methyl-2-pentanone, toluene, butyl acetate, and o-, m-, p-xylene, in printed blank, printed label, tipping paper, foil and cardboard were determined by headspace gas chromatography using dichloromethane as an internal standard, and the effects of determination conditions on the results were also discussed. The results indicated that: 1) the recovery of the method was 94%-111% with the variation coefficient of 1.4%-2.3% and the limit of detection 0.001-0.006 mg/m2; 2) printed label and blank contained more VOCs and at higher level, especially benzene, toluene, and o-, p-xylene contents in printed label; 3) there were many VOCs in tipping paper, though at lower levels; 4) there were a few VOCs in foil and at lower levels; and 5) cardboard did not contain many VOCs, however, the content of 4-methyl-2- pentanone and butyl acetate in cardboard was the highest.