摘要
目的建立顶空-气相色谱-质谱联用法同时测定食品包装纸中环氧乙烷、环氧丙烷、环氧氯丙烷和二氧六环残留量的分析方法。方法通过实验优化影响测定方法的主要因素,确定平衡温度、平衡时间和色谱条件。结果 4种分析物的标准工作曲线线性相关系数均大于0.999,方法定量限分别为0.46、0.45、0.83和1.56μg/g,回收率为94.3%-106.7%,精密度（RSD）为0.7%-5.5%（n=3）。结论本方法操作简便、分析速度快、结果准确,适用于食品包装纸中环氧乙烷、环氧丙烷、环氧氯丙烷和二氧六环残留量的同时检测。
Objective To establish a method for the simultaneous determination of ethylene oxide,propylene oxide,epichlorohydrin,and dioxane in food packaging papers by headspace gas chromatography-mass spectrography.Methods The main factors influencing the determination,including equilibrium temperature,equilibrium time and chromatographic conditions were optimized.Results The calibration curves for 4 kinds of analytes were linear with correlation coefficients all over 0.999.The limits of quantitation of the method were 0.46,0.45,0.83 and 1.56 μg/g,respectively.The recoveries ranged from 94.3% to 106.7 with relative standard deviations（n=3） in the range of 0.7%to 5.5%.Conclusion The proposed method is simple,rapid and accurate,and is suitable for the simultaneous determination of ethylene oxide,propylene oxide,epichlorohydrin,and dioxane in food packing paper.
出处
《食品安全质量检测学报》
CAS
2016年第10期4174-4178,共5页
Journal of Food Safety and Quality
