Determination of 16 kinds of phthalate acid esters in edible oil by gas chromatography-mass spectrometry
-
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。Abstract: 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.
-
[1] 曹九超,俞晔,朱云,等.食用油中5种邻苯二甲酸酯的液液萃取-固相萃取耦合富集和气质联用的测定[J].中国油脂,2014(1):43-46. [2] 吴平谷,杨大进,沈向红,等.气相色谱-质谱联用测定食用植物油中的邻苯二甲酸酯类化合物[J].中华预防医学杂志,2012,46(6):561-566. [3] Li Lin,Sun Qiuju,Xin Shigang,et al.Detection of phthalate esters from plastic packaging materials into edible oil by gas chromatography-mass[J].Applied Mechanics and Materials,2013,395:355-358.
[4] 李娜,王兴宁,刘康书,等.固相萃取-气相色谱-质谱法同时测定植物油中7种邻苯二甲酸酯[J].理化检验(化学分册),2015(6):778-781. [5] 李拥军,熊文明,陈坚文,等.固相萃取/高效液相色谱-串联质谱法测定罗非鱼中9种邻苯二甲酸酯[J].分析测试学报,2012,31(3):278-283. [6] 杜鹏程,姜童祥,巩飚.GC-MS/MS法测定食用植物油中17种邻苯二甲酸酯类化合物[J].中国卫生检验杂志,2014(5):620-623. [7] 中华人民共和国国家质量监督检验检疫总局.GB/T 21911-2008食品中邻苯二甲酸酯的测定[S].北京:中国标准出版社,2008.
计量
- 文章访问数:
- HTML全文浏览量:
- PDF下载量:
下载:
