文章摘要
质谱双探针法对食品中N- 亚硝胺化合物的全检测
Determination of N-nitrosamine compounds in food by usingdouble-ion probe method of electron impact mass spectrometry
  
DOI:
中文关键词: N-亚硝胺  电子轰击质谱  离子探针  食品安全
英文关键词: N-nitrosamines  electron impact mass spectrometry  ion probe  food safety
基金项目:国家自然科学基金资助项目(21372069, 21602054);教育部新世纪优秀人才支持计划资助项目(NCET-13-0784)
作者单位
刘秋华1,杨艳1,周再春1,成奋民1,袁晟2,田俐1 1. 湖南科技大学 化学化工学院, 理论有机化学与功能分子教育部重点实验室湖南 湘潭 411201 2. 湘潭市疾病预防控制中心湖南 湘潭 411100 
摘要点击次数: 730
全文下载次数: 732
中文摘要:
      食品中亚硝胺化合物的种类达300种,当前的亚硝胺检测国标只检测代表性的4种亚硝胺化合物.选择亚硝胺类化合物在EI源质谱中电离出的亚硝酰胺基(N2O)和亚硝酰(NO)2个独特碎片离子作双探针信号,以市售腊肉为检测对象,探索出一种亚硝胺类化合物全检测的方法,大幅度减少了现有国家标准对食品中亚硝胺类化合物的漏检.该检测方法原理简单、实验操作方便、测试成本低.
英文摘要:
      There are over 300 N-nitrosamine compounds found in food, but the current national standards only detect four representative nitrosamine compounds. N-nitrosamine compounds can be ionized and produce two unique fragment ions, nitroso amide (N2O) and nitrosyl (NO), in electron impact (EI) mass spectrometry ionization, and this property is used to determine the existence of nitrosamine compounds and quantify these compounds by selecting the two ions as double-probe signals. The commercially available preserved meat was selected as test objects. A method of determination of N-nitrosamine compounds in food was explored. This method can greatly reduce the missed detection of nitrosamine compounds existing in food. The method is simple in principle and the experiment operation involved is convenient, it greatly cut down the cost of testing.
查看全文   查看/发表评论  下载PDF阅读器
关闭