气相色谱-质谱法检测PVC保鲜膜中35种增塑剂  

Determination of 35 kinds of plasticizers in PVC film by GC-MS

作　　者：周相娟[1] 许华[1] 江改青[1] 谢精精[1] 

机构地区：[1]北京市海淀区产品质量监督检验所,北京100094

出　　处：《食品工业科技》2012年第13期315-318,共4页Science and Technology of Food Industry

基　　金：国家科技支撑计划(2009BADB9B00)

摘　　要：建立了超声提取后利用气相色谱-质谱法测定PVC膜中35种增塑剂的检测方法。保鲜膜中苯二甲酸酯类、己二酸酯类、柠檬酸酯类增塑剂经正己烷超声萃取后经毛细管柱分离、质谱定性,采用选择离子监测模式进行定量。该方法在0.05～50mg/L范围内线性关系良好,线性相关系数均大于0.99;平均回收率为79.6%～109.4%,RSD为0.9%～4.2%。该方法操作简便、定量准确、灵敏度高、稳定性好,适用于PVC包装材料中35种增塑剂的同时测定,可为我国建立食品包装中相应检测方法提供参考。A method was established to simultaneously determine 35 kinds of plasticizers in PVC film. This method included simple extraction of sample with hexane by ultrasonic and detection by gas chromatography/mass spectrometry（GC/MS）. The method had a good relationship at the range of 0.05-50 mg/L,with all correlation coefficients better than 0.99 average recovery was 79.6% N 109.4% relative standard deviation （RSD） was at range of 0.9%-4.2%. The method was rapid,sensitive,high precision and good reproducibility,and was suitable for monitoring 35 kinds of plasticizers in PVC film.

关 键 词：PVC保鲜膜 增塑剂 气相色谱-质谱(GC-MS) 

分 类 号：TS207.3[轻工技术与工程—食品科学]