应用顶空气相色谱法对食品包装中残留乙烯进行了测定。试验对顶空条件以及气相色谱条件进行了优化。优化后乙烯的线性方程和相关系数分别为y=4798.6x+5.7163,相关系数为0.9995,方法检出限为0.05mg/kg或0.005mg/m2,样品加标回收率为91.8%,相对标准偏差小于3%。结果表明:该方法操作简便、快速和灵敏,适用于食品包装中的残留乙烯的测定。 Residual ethylene in food packaging was determined by headspace gas chromatography. The conditions of headspace and gas chromatography were optimized. The linear equation and correlation coefficient of optimized ethylene were y = 4798.6x + 5.7163, the correlation coefficient was 0.9995, the detection limit of the method was 0.05mg / kg or 0.005mg / m2, the recoveries of spiked samples were 91.8%, the relative standard deviation Less than 3%. The results show that the method is simple, rapid and sensitive and is suitable for the determination of residual ethylene in food packaging.