色谱

色谱

• 研究论文 • 上一篇    下一篇

顶空气相色谱-质谱法测定婴幼儿食品中的呋喃

刘平,薛颖,金庆中,徐筠,张正,吴国华

  

  1. Beijing Center for Disease Prevention and Control, Beijing 100013, China
  • 收稿日期:2007-07-16 修回日期:2007-09-20 出版日期:2008-01-30 发布日期:1984-09-25
  • 通讯作者: 薛颖

Determination of furan in baby foods using headspace gas chromatography-mass spectrometry

LIU Ping, XUE Ying, JIN Qingzhong, XU Jun, ZHANG Zheng, WU Guohua   

  1. Beijing Center for Disease Prevention and Control, Beijing 100013, China
  • Received:2007-07-16 Revised:2007-09-20 Online:2008-01-30 Published:1984-09-25

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摘要：

通过顶空装置将样品中的呋喃提取出来,以D4-呋喃作为内标物,HP-PLOT Q石英毛细管柱作为分析柱,采用气相色谱分离,质谱定性定量,建立了婴幼儿食品中呋喃的顶空气相色谱-质谱联用分析方法。方法的低浓度工作曲线的线性范围为10～70 ng,高浓度工作曲线的线性范围为50.0～400.0 ng,两条曲线的相关系数均为0.997。方法的定性检出限（S/N≥3）为3.8 ng/g,定量检出限（S/N≥10）为10.0 ng/g。不同基底样品中高低添加浓度的加标回收率为90.0%～98.4%,相对标准偏差均小于10%。

关键词: 顶空气相色谱-质谱法, 呋喃, 婴幼儿食品

Abstract:

A method for the determination of furan in baby foods was developed using headspace gas chromatography-mass spectrometry on an HP-PLOT Q capillary column, with D4-furan as an internal standard. The linearities of detection ranged from 10 ng to 70 ng in low concentration and from 50 ng to 400 ng in high concentration, with correlation coefficients of 0.997 and 0.997, respectively. The detection limit of the method was 3.8 ng/g and the limit of quantification was 10.0 ng/g. The average recoveries at the two spiked levels in different samples ranged from 90.0% to 98.4%, and the relative standard deviations were lower than 10%.

Key words: baby foods , furan, headspace gas chromatography-mass spectrometry （HS-GC-MS）