| 液体顶空-气相色谱法测定食品接触苯乙烯聚合物中单体及溶剂残留 |
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| 引用本文： | 周宇艳,咸洋,程欲晓,马明,冯健. 液体顶空-气相色谱法测定食品接触苯乙烯聚合物中单体及溶剂残留[J]. 理化检验(化学分册), 2012, 0(3): 257-261 |
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| 作者姓名： | 周宇艳 咸洋 程欲晓 马明 冯健 |
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| 作者单位： | 上海出入境检验检疫局;上海材料研究所 |
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| 基金项目： | 国家质量监督检验检疫总局科研项目(2008IK086,2011IK041) |
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| 摘 要： | 提出了液体顶空-气相色谱法测定食品接触苯乙烯聚合物中残留单体及溶剂的方法。采用N,N-二甲基乙酰胺溶解聚合物,使其中残留单体及溶剂完全释放,并在优化的工作条件下,以基体匹配校正法绘制工作曲线,有效消除基质效应。7种分析物检出限(3S/N)在0.2～4.1mg.kg-1之间。测得方法的回收率在93.2%～103.2%之间,测定值的相对标准偏差(n=6)在1.1%～5.6%之间。
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| 关 键 词： | 液体顶空-气相色谱法 食品接触材料 苯乙烯聚合物 单体 溶剂 基体匹配校正法 |
Liquid Headspace-GC Determination of Residual Amounts of Monomers and Solvents in Food Contacted with Styrene Polymer |
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| ZHOU Yu-yan,XIAN Yang,CHENG Yu-xiao,MA Ming,FENG Jian. Liquid Headspace-GC Determination of Residual Amounts of Monomers and Solvents in Food Contacted with Styrene Polymer[J]. Physical Testing and Chemical Analysis Part B:Chemical Analgsis, 2012, 0(3): 257-261 |
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| Authors: | ZHOU Yu-yan XIAN Yang CHENG Yu-xiao MA Ming FENG Jian |
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| Affiliation: | 1(1.Shanghai Entry-Exit Inspection and Quarantine Bureau,Shanghai 200135,China; 2.Shanghai Research Institute of Materials,Shanghai 200437,China) |
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| Abstract: | A method of liquid headspace-GC was applied to the determination of residual amounts of monomers and solvents in food contacted with styrene polymer.The polymer was completely dissolved in N,N-dimethylacetamide.Under the optimized conditions,the matrix effect was eliminated by matrix matching calibration.The limits of detection(3S/N) for the 7 analytes were found in the range of 0.2-4.1 mg·kg-1.Values of recovery were found in the range of 93.2%-103.2%,with values of RSD′s(n=6) in the range of 1.1%-5.6%. |
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| Keywords: | Liquid headspace-GC Food contacting material Styrene polymer Monomers Solvents Matrix matching calibration |
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