包装与食品机械Issue(5)：63-66,4.DOI:10.3969/j.issn.1005-1295.2015.05.015
气相色谱－质谱法测定塑料食品包装材料中4种有机锡
Determination of the Four Organotin Compounds in Plastic Food Packing Materials by Gas Chromatography-mass Spectrometry
摘要
Abstract
A method for the determination of 4organotin compounds (DMT,TMT,DET,MBT)in plastic food packing materials was developed by gas chromatography-mass spectrometry (GC-MS).The sample of plastic food packaging material was dissolved by tetrahydrofuran and the polymer in the sample was precipita-ted with methanol,and then high speed centrifugation and filtration,the organictin and tetraethyl borate sodium reaction generated organictin ethyl derivative.The ethyl derivatives of organtin compounds were extracted with nhexane and then qualitatively and quantitatively analyzed by gas chromatography-mass spectrometry.Under the optimal condition of determination,the linear calibration curve was obtained in the range of 0.10 ~10mg/L with a correlation coefficient above 0.999.The limits of quantification in the range of 0.2 ~0.3 mg/kg and the average recoveries were in the range of 56.5% ~109.4% for 4 organotins with the relative standard devia-tions below 12.6%.This method is accurate and sensitve,and it is suitable for the analysis of organotins in plastic food packing materials.关键词
有机锡化合物/塑料/食品包装材料/气相色谱 -质谱法Key words
organotin compounds/plastic/food packing materials/gas chromatography-mass spectrometry分类
轻工纺织引用本文复制引用
蒋小良,吴茵琪,钟月香,徐正华,易碧华,李达光..气相色谱－质谱法测定塑料食品包装材料中4种有机锡[J].包装与食品机械,2015,(5):63-66,4.基金项目
江门市基础与理论科学研究类科技计划项目 （）
