质子转移反应质谱在食品挥发性有机物检测分析中的应用  

A Review of the Application of Proton Transfer Reaction Mass Spectrometry in the Analysis of Volatile Organic Compounds in Foods

作　　者：申丹宁 赵学玒[1,2] 孙运[1] 汪曣[1,2] 蒋学慧[1] 宓捷波[3] 

机构地区：[1]天津大学精密仪器与光电子工程学院,天津300072 [2]天津大学天津市生物医学检测技术与仪器重点实验室,天津300072 [3]天津出入境检验检疫局动植物与食品检测中心,天津300461

出　　处：《食品科学》2017年第23期289-297,共9页Food Science

基　　金：国家重大科学仪器设备开发专项(2013YQ090875-2;2013YQ090875-7);天津市应用基础与前沿技术研究计划项目(15JCYBJC23300);国家质量监督检验检疫总局科技计划项目(2014IK126)

摘　　要：挥发性有机化合物(volatile organic compounds,VOCs)是食品风味的主要组成成分,同时也包含了食品特性的大量信息。直接检测食品释放的VOCs来进行食品科学和技术方面的研究具有便利的优点,已成为食品检测领域的重要研究方向。质子转移反应质谱(proton transfer reaction-mass spectrometry,PTR-MS)作为一种痕量VOCs检测技术,具有灵敏度高、响应时间短、操作简单且样品无需前处理等优点,可以在几秒钟内获得VOCs的绝对浓度,因此能够实时监测食品相关过程中VOCs的变化情况,对食品安全监督、质量控制以及新产品的研发等提供有力帮助。本文首先介绍了PTR-MS的工作原理、基本结构及发展现状,然后按照PTR-MS的全谱图扫描检测和VOCs实时监测两种检测方式详细总结了其在食品领域的应用和研究现状,并对其发展前景做出了展望。Volatile organic compounds （VOCs） are the main components responsible for the flavor of foods. The analysis of VOCs in foods, which can reveal a lot of information about some properties of foods, represents an easy and convenient means for studies in food science and technology and has become an important direction in the field of food analysis. Proton transfer reaction mass spectrometry （PTR-MS）, an important technique to detect trace amounts of VOCs, has many advantages including high sensitivity, short response time, no need for pretreatment, and easy operation, which can allow the determination of the absolute concentration of VOCs within several minutes and consequently the real-time monitoring VOCs changes in foods, facilitating effectively food safety supervision, food quality control, and the development of new products. This paper presents the working principle, basic structure and development of PTR-MS. Meanwhile, the current state of the art in the study and application in food field of PTR-MS in the full-scan mode and for the real-time monitoring VOCs is elaborately described. Finally, prospects for its future development are discussed.

关 键 词：挥发性有机化合物 食品检测 质子转移反应质谱 全谱图扫描 实时监测 

分 类 号：TS201.2[轻工技术与工程—食品科学]