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投稿时间：2015-04-20
投稿时间：2015-04-20
中文摘要: 探讨顶空气相色谱法同时测定食品包装材料中残留氯乙烯、偏二氯乙烯和1，1-二氯乙烷单体含量的可行性。样品在自动顶空进样器中，用N，N-二甲基乙酰胺在80℃下提取40 min，气相色谱分析，外标法定量。在本试验条件下，氯乙烯、偏二氯乙烯和1，1-二氯乙烷单体线性关系良好，相关系数分别为0.999 0、0.999 6和0.999 4，检出限分别为0.02、0.25、1.00mg/L，回收率为90.0%～97.7%，RSD值为1.86%～3.10%。
Abstract:A method of simultaneous determination of vinyl chloride，vinylidene chloride and 1，1-dichloroethane in food packaging materials by Headspace-Gas Chromatography（GC-HS）was builded and the feasibility was investigated.The samples of food packing materials were extracted with dmac in 80℃and 40 minutes by a headspace system，then analyzed by GC，quantitatived by external standards methods.The method had good linearity and the linear correlation coefficients of the method for vinyl chloride，vinylidene chloride and 1，1-dichloroethane were 0.999 0，0.999 6 and 0.999 4，the limit of detection were 0.02，0.25，1.00 mg/L. The average recoveries were in the range of 90.0%-97.7%with relative standard deviations（RSD）of 1.86%-3.10%.
keywords: headspace-gas chromatography food packaging materials vinyl chloride vinylidene chloride 1,1-dichloroethane
文章编号：201610033 中图分类号： 文献标志码：
基金项目:潮州市科技引导计划项目（2012S25）
| Author Name | Affiliation |
| CHEN Xu-ming，HUANG Yi-na | Guangdong Chaozhou Quantity and Measurement Supervision and Inspection Institute，Chaozhou 521011，Guangdong，China |
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