QuEChERS-气相色谱-串联质谱法测定熟肉制品中9种N-亚硝胺类化合物
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(杭州市食品药品检验研究院,浙江 杭州 310022)

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李玮 女 高级工程师 研究方向为食品安全分析E-mail:78459032@qq.com

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杭州市农业与社会发展科研计划项目(20180432B30)


Determination of nine N-nitrosamines in cooked meat by QuEChERS-gas chromatography-tandem mass spectrometry
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(Hangzhou Institute for Food and Drug Control, Zhejiang Hangzhou 310022, China)

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    摘要:

    目的 建立同时测定熟肉制品中9种N-亚硝胺类化合物的气相色谱-串联质谱分析方法。方法 样品采用快速基质分散净化(QuEChERS)法处理后,用HP-INNOWax石英毛细管色谱柱(30 m×0.25 mm,0.25 μm)分离,经气相色谱-串联质谱多反应监测技术进行定性及定量分析。结果 9种N-亚硝胺类化合物在0.20~50.00 μg/kg范围内线性关系良好,相关系数均>0.997,方法检出限为0.02~0.1 μg/kg。3个加标水平的平均回收率为78%~120%,相对标准偏差为3.42%~15.24%。结论 本方法准确、快速、灵敏度高,可用于熟肉制品中9种N-亚硝胺类化合物的检测。

    Abstract:

    Objective A method was established for simultaneous determination of nine N-nitrosamines in cooked meat using enhance matrix removal QuEChERS-gas chromatography-tandem mass spectrometry(GC-MS/MS).Methods The samples were extracted by enhance matrix removal QuEChERS.The analytes were separated on a HP-INNOWax quartz capillary column(30 m×0.25 mm,0.25 μm), and ionized by electron impact ion source(EI).The data were collected by multiple reaction monitoring(MRM) mode,followed by qualitative screening and quantitative analysis. Results Nine N-nitrosamines had good linearities in the range of 0.20-50.00 μg/kg, with correlation coefficients above 0.997. The detection limits of were 0.02-0.1 μg/kg. The average recoveries of the nine N-nitrosamines were 78%-120% with relative standard deviations of 3.42%-15.24%.Conclusion The QuEChERS purification combined with GC-MS/MS method was rapid, accurate and sensitive,and suitable for the determination of nine N-nitrosamines in cooked meat.

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李玮,贾彦博,励炯,陈美春,王秀丽,林伟杰,马慧丽. QuEChERS-气相色谱-串联质谱法测定熟肉制品中9种N-亚硝胺类化合物[J].中国食品卫生杂志,2019,31(2):141-145.

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  • 收稿日期:2019-01-21
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  • 在线发布日期: 2019-05-17
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