食品科学 ›› 2007, Vol. 28 ›› Issue (9): 478-481.

• 分析检测 • 上一篇    下一篇

液体食品香精挥发性成分顶空-单液滴冷凝分析方法的建立

 姜海珍, 陈海涛, 孙宝国, 黄明泉   

  1. 北京工商大学化学与环境工程学院; 北京中融百鸣生物技术有限责任公司; 北京工商大学化学与环境工程学院 北京100037北京中融百鸣生物技术有限责任公司; 北京102600; 北京100037;
  • 出版日期:2007-09-15 发布日期:2011-11-22

Establishment of Analytical Method for Volatile Components of Liquid Food Flavoring by Head Space-single Drop Condensation

 JIANG  Hai-Zhen, CHEN  Hai-Tao, SUN  Bao-Guo, HUANG  Ming-Quan   

  1. 1.School of Chemical and Environmental Engineering,Beijing Technology and Business University,Beijing 100037,China;2.Beijing Z&B Biologic Technology Co.Ltd.,Beijing 102600,China
  • Online:2007-09-15 Published:2011-11-22

摘要: 本实验以三种不同的模拟液体食品香精为研究对象,建立了一种液体食品香精挥发性成分顶空-单液滴冷凝分析方法。该方法是在顶空-单液滴微萃取的基础上,不用萃取溶剂,而是将冷冻的微量进样针扎入样品瓶顶空,通过顶空挥发性成分在针壁上的不断冷凝形成液滴来提取液体食品香精挥发性成分,然后将微量进样针从顶空瓶中拔出,进入气-质联用仪进行分析,目标香料全部检测出来。

关键词:  , 顶空-单液滴冷凝, 液体香精, 挥发性成分, 气-质联用分析

Abstract: An analytical method for volatile components of liquid food flavoring by head space-single drop condensation(HS-SDC)was established by using three kinds of different mimic liquid flavorings as research objects.Based on head space single drop microextraction(HS-SDME)without using extraction solvent,the method was described that volatile components of liquid flavoring were extracted by the formation of a micro liquid drop of volatile components condensed continuously on the needle tip upon a frozen microsyringe inserted into the headspace of a vial.Then the microsyringe was removed from the vial and injected into GC-MS for analysis.Target flavor compounds were completely detected.

Key words: headspace-single drop condensation, liquid flavoring, volatile components, GC-MS