A headspace-gas chromatography-mass spectrometric method was developed for the determination of benzene and its homologues in the water-based emulsion adhesives. The samples were dissolved by N, N-dimethylformamide and injected with static headspace extract, at last the benzene, toluene, o-xylene, m-xylene or p-xylene and styrene in 5 water-based emulsion adhesive samples were determined by gas chromatography-mass spec-trometry under selected ion monitoring mode. The results show that the calibration curves show good linearity over the range of 0. 05 to 2. 0 mg/L for all the compounds with the correlation coefficients of 0. 998 0 to 0. 999 4. The detection limits (LODs) are from 0. 01 to 0. 03 mg/kg. The average spiked recoveries of two added level on 0. 2 μg and 1. 0 μg are in the range of 93. 7%-102% , and the relative standard deviations(RSDs) are from 4. 21% to7.82%.%建立了烟用水基型乳胶中苯及苯系物的顶空-气相色谱-质谱(HS-GC-MS)分析方法.样品采用N,N-二甲基甲酰胺溶解,静态顶空进样,气相色谱-质谱-选择离子(SIM)监测法测定5种烟用水基型乳胶的苯、甲苯、对二甲苯、间二甲苯、邻二甲苯及苯乙烯.结果表明:所有组分在0.05～2.0 mg/L范围内线性关系良好,相关系数为0.998 0～0.999 4,检出限为0.01～0.03 mg/kg；6种待测化合物在0.2 μg和1.0μg两个添加水平的平均回收率可达93.7％～102％,相对标准偏差为4.21％～7.82％.
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