气相色谱质谱法测定食用油中16种邻苯二甲酸酯类增塑剂  

Determination of 16 kinds of phthalate acid esters in edible oil by gas chromatography-mass spectrometry

作　　者：历闫 伍军[1] 胡光辉[2] 

机构地区：[1]北京农学院食品科学与工程学院,北京102206 [2]北京市理化分析测试中心,北京100094

出　　处：《食品工业科技》2016年第8期81-84,共4页Science and Technology of Food Industry

基　　金：农产品有害微生物及农残安全检测与控制北京市重点实验室项目

摘　　要：建立利用气相色谱质谱检测食用油中16种邻苯二甲酸酯类物质的方法。此方法以乙腈与二氯甲烷1∶2（v∶v）的混合溶液作为萃取剂,用Florisil与PSA填料净化待提取的样品,采用外标法进行定量。结果表明,此方法在0.5~8.0 mg/L范围内线性良好,相关系数均在0.999以上,检出限为0.41~2.30μg/L（S/N=3）,当加标水平为4 mg/L时,平均回收率均在83.75%~102.50%之间,相对标准偏差（RSD）在2.16%~10.21%之间。此方法快速简便,成本较低,适用于批量检测。The method of detecting 16 kinds of phthalate acid esters（PAEs） in edible oil by gas chromatographymass spectrometry（GC-MS） was established. In this method,acetonitrile and methylene chloride 1∶2（v∶v） was used as extractant,Florisil and PSA was used as purifying filler to the sample after extracting,the external standard method was adopted for quantifying in the GC-MS. The results showed that the method had good linear relationship in the range of 0.5~8.0 mg/L with correlation coefficient R2 more than 0.999,the instrumental limit of detection（S/N=3） was 0.41~2.30 μg/L,the average recovery was 83.75%~102.50%,relative standard deviation（RSD） was between 2.16%~10.21%. This method was quick and easy,low cost,and was suitable for the batch test.

关 键 词：增塑剂 邻苯二甲酸酯类 食用油 气质联用 

分 类 号：TS215[轻工技术与工程—粮食、油脂及植物蛋白工程]