| 气相色谱-质谱法测定食品中邻苯二甲酸酯 |
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| 引用本文： | 苏晓,王修鹏,王岩.气相色谱-质谱法测定食品中邻苯二甲酸酯[J].理化检验(化学分册),2012(7):823-827. |
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| 作者姓名： | 苏晓 王修鹏 王岩 |
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| 作者单位： | 临沂市产品质量监督检验所;临沂市技术监督信息所 |
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| 摘 要： | 提出了气相色谱-质谱法测定食品中16种邻苯二甲酸酯(PAE′s)含量的方法。详细叙述了不同基质的食品的处理方法,高脂类样品需经凝胶渗透色谱净化。采用HP-5MS石英毛细管柱进行分离和电子轰击离子源质谱检测。16种PAE′s的线性范围为0.50～20.0mg·L-1,检出限(3S/N)在6.03～826μg·kg-1之间。在1,10mg·kg-1两个浓度水平进行加标回收试验,纯油脂和高脂固体样品中16种PAE′s的平均回收率分别在79.2%～101%和77.8%～97.4%之间,测定值的相对标准偏差(n=6)分别在3.4%～6.9%和4.1%～6.0%之间。
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| 关 键 词： | 邻苯二甲酸酯 凝胶渗透色谱 气相色谱-质谱法 食品 |
GC-MS Determination of Phthalates in Food |
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| SU Xiao,WANG Xiu-peng,WANG Yan.GC-MS Determination of Phthalates in Food[J].Physical Testing and Chemical Analysis Part B:Chemical Analgsis,2012(7):823-827. |
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| Authors: | SU Xiao WANG Xiu-peng WANG Yan |
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| Institution: | 1(1.Linyi Municipal Institute of Supervision and Inspection of Product Quality,Linyi 276004,China; 2.Linyi Municipal Institute of Technical Supervision Information,Linyi 276004,China) |
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| Abstract: | A method of GC-MS for the determination of 16 phthalates(PAE′s) in food was proposed.The pretreatment methods for different matrixes of samples were described in detail,and the high-fatty food was purified by gel permeation chromatography(GPC).HP-5MS quartz capillary column was used for separation,and EI source was used for determination in MS.Linearity ranges of the 16 PAE′s were kept in the same range of 0.50-20.0 mg·L-1,with detection limits(3S/N) ranged from 6.03 to 826 μg·kg-1.Tests for recovery were made at the concentration levels of 1 and 10 mg·kg-1 of the mixed phthalate standards,values of recovery found were in the ranges of 79.2%-101% for pure oil and fat and 77.8%-97.4% for high-fatty food.Values of RSD′s(n=3) found were in the ranges of 3.4%-6.9% and 4.1%-6.0% respectively. |
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| Keywords: | PAE′s GPC GC-MS Foods |
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