气相色谱-质谱联用法研究蛇油中腥味物质成分  

Study on odors of snake oil by GC-MS

作　　者：刘一唯[1] 杨成对[2] 陈培榕[2] 周华锋[3] 段明星[1] 

机构地区：[1]生物膜与膜生物工程国家重点实验室,清华大学生物科学与技术系,北京100084 [2]清华大学分析中心,北京100084 [3]江苏隆力奇公司,常熟215555

出　　处：《分析试验室》2008年第12期95-98,共4页Chinese Journal of Analysis Laboratory

摘　　要：采用真空-挥发-平衡的方法将蛇油挥发组分进行有效的收集,然后利用气相色谱-质谱联用(GC-MS)的手段对蛇油中的异味或腥味物质进行了分离和鉴定,并对除异味处理前后的蛇油挥发组分进行了对比。实验结果发现,蛇油中的腥味物质主要是中碳链的饱和与不饱和的低沸点的醛类、烯醛和烯醇类。质谱检索的结果为己醛、庚醛、2-辛烯醇、2-壬烯醇、2-壬烯醛、2-癸烯醛等,此分析方法的建立对蛇油的深度开发利用很有意义。In this paper, odors or flavor components of snake oil were firstly collected by a vacuum-volatilization-balance method, and then separated and identified by gas chromatography-mass spectrometry （GC-MS）. The volatile components in snake oil were compared before and after odor elimination. The results showed that the odor components of snake oil are mainly saturated and unsaturated aldehydes and alcohols with medium carbon chain length. MS analysis results are Hexanal, heptaldehyde, 2-decen-1-ol, 2-nonen-1-ol, 2-nonen-1-al, 2-decen-1-al, 2-undecenal, 2,4- decadienal. This analytical method and results have important meaning for the deeper exploitation and utilization of snake oil.

关 键 词：蛇油 腥味物质 气相色谱-质谱联用仪(GC—MS) 

分 类 号：O657.63[理学—分析化学]