气相色谱-质谱法同时测定塑料包装材料中多种有毒有害物质
目的 建立同时测定塑料包装材料中有毒有害物质的气相色谱-质谱法, 其中包括增塑剂、抗氧化剂、爽滑剂等有毒有害物。方法 塑料样品用甲醇-乙酸乙酯(2:1)超声提取, 经0.45 μm滤膜过滤后, 用气相色谱-质谱联用仪(GC-MS)的选择离子监测模式(SIM)进行检测。结果 该方法具有良好的线性相关性(相关系数r>0.9990), 在三个添加水平下, 样品平均回收率在87.9%~103.0%之间, 相对标准偏差(RSD, n=5)在2.8%~9.5%之间。结论 该法简便、灵敏、准确, 适用于食品塑料包装材料中多种有毒有害物质同时快速、灵敏检测。
Objective To establish the method of simultaneous determination of multiple harmful substances in food plastic packing materials by gas chromatography–mass spectrometry (GC-MS), including plasticizers, antioxidants and slip agents. Methods The samples of food plastic packing materials were extracted with methanol-ethyl acetate (2:1) by ultrasonic, then filtrated through the membrane with 0.45 μm diameter, and determined by the selective ion monitoring mode of GC-MS. Results A good linear correlation was ob-served with the correlation coefficients (r>0.9990) for all analytes. The recovery range was 87.9%~103.0% at three spiked concentrations, with the relative standard deviation between 2.8%~9.5%. Conclusion This method was simple, sensitive and accurate, which was suitable for high through-put determination for harmful substances in food plastic packing materials.
标题：气相色谱-质谱法同时测定塑料包装材料中多种有毒有害物质
英文标题：Simultaneous determination of multiple harmful substances in food plastic packing materials by gas chromatography–mass spectrometry
作者：
焦艳娜 湖南出入境检验检疫局技术中心
丁利 湖南出入境检验检疫局技术中心
肖家勇 湖南出入境检验检疫局技术中心
傅善良 湖南出入境检验检疫局技术中心
龚强 湖南出入境检验检疫局技术中心
朱绍华 湖南出入境检验检疫局技术中心
成婧 湖南出入境检验检疫局技术中心
王利兵 湖南出入境检验检疫局技术中心
中文关键词:有毒有害物质,塑料包装材料,气相色谱-质谱法,
英文关键词:harmful substances,food plastic packing materials,gas chromatography–mass spectrometry,
发表日期：2013-06-06
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