中国农业科学 ›› 2012, Vol. 45 ›› Issue (16): 3373-3381.doi: 10.3864/j.issn.0578-1752.2012.16.017

• 贮藏·保鲜·加工 • 上一篇    下一篇

气相色谱-串联四极杆质谱测定餐厨废弃物中的丙烯酰胺

 程劼, 苏晓鸥, 张维, 王瑞国, 王培龙, 李阳   

  1. 中国农业科学院农业质量标准与检测技术研究所,北京100081
  • 收稿日期:2011-11-28 出版日期:2012-08-15 发布日期:2012-05-31
  • 通讯作者: 通信作者苏晓鸥,Tel:010-82106307;E-mail:suxiaoou@caas.net.cn
  • 作者简介:程 劼,Tel:010-82106576;E-mail:chengjie17@163.com
  • 基金资助:

    农业部“餐厨废弃物饲料化利用安全评价”专项(2130112)

Determination of Acrylamide in Kitchen Waste Using Gas Chromatography-Tandem Mass Spectrometry

 CHENG  Jie, SU  Xiao-鸥, ZHANG  Wei, WANG  Rui-Guo, WANG  Pei-Long, LI  Yang   

  1. 中国农业科学院农业质量标准与检测技术研究所,北京100081
  • Received:2011-11-28 Online:2012-08-15 Published:2012-05-31

摘要: 【目的】建立气相色谱-串联四极杆质谱(GC/MS/MS)检测餐厨废弃物中的丙烯酰胺。【方法】样品经去离子温水提取结合C18 SPE小柱净化或者经甲酸溶液提取/Carrez试剂预处理,MCX柱净化的两种前处理方法进行前处理,然后经过衍生反应,利用气相色谱串联三重四极杆质谱检测,在SRM检测模式下,以离子对m/z       152>135和m/z 152>107为定性离子对,m/z 152>135为定量离子,碰撞气体能量15 V,外标法定量。【结果】该方法在3.0—30 ng•L-1浓度中呈现良好的线性关系,相关系数R2=0.9984,丙烯酰胺的检出限值为1.0 ng•g-1(S/N=3),回收率为95.3%—108.1%,3个水平添加下的相对标准偏差(RSD)均小于4.3%。【结论】所建立的方法稳定、灵敏度高,可用于餐厨废弃物中丙烯酰胺的测定。

关键词: 气相色谱-串联四极杆质谱, 餐厨废弃物, 丙烯酰胺

Abstract: 【Objective】The objective of this study is to develop an analysis methods of the acrylamide in kitchen waste using gas chromatography-tandem mass spectrometry.【Method】The use of warm deionized water extraction and C18 SPE clean-up or the formic acid extraction and Carrez reagent/MCX clean-up as the sorbented appeared to be a very effective sample preparation method. After derivative reaction, gas chromatography-tandem mass spectrometry was used to detect the sample in the mode of SRM, and the external standard method was used for quantitative analysis. The qualitative ion is m/z 152>135 and 152>107 and the quantitative ion is m/z 152>135. The pressure of gas collision is 15V.【Result】The developed method presented a good linearity from 3 ng•L-1 to 30 ng•L-1 with the correlation coefficient of 0.9984. The RSD of the method was 4.3% and of the quantitative limit was 1.0 ng•g-1. The rate of recovery was 95.3%-108.1%.【Conclusion】The developed method is a very effective method for detecting the acrylamide in kitchen waste.

Key words: gas chromatography-tandem mass, kitchen waste, acrylamide