利用GC-MS结合移动窗口正交投影法及香原料数据库定性混配香精中的复杂成分

Analysis of Complex Components in Mixed Flavors by Moving Window Characteristic Peak Orthogonal Projections Resolution Algorithm, Gas Chromatography-Mass Spectrometry and Flavor Database

使用气相色谱-质谱(GC-MS)对含有表香干扰的混配香精(由5种精油和3种酊剂加入表香中混配而成)的复杂成分进行分析,利用移动窗口特征峰正交投影法,结合使用已建立的香原料物质数据库,快速判别了混配香精中的精油及酊剂等复杂成分,并详细研究了从复杂混配香精中剖析精油、酊剂等复杂成分的影响因素,从而初步提出一种从复杂混合物体系中定性复杂成分的可行性方法。

A feasible approach for the analysis and identification of the complex components in mixed flavor was developed by moving window characteristic peak orthogonal projections resolution algorithm, GC -MS and the flavor database established. The analysis process was as follows： the compositions of mixed flavors containing five essential oils and three tinctures in unknown complex essence were firstly analyzed by GC - MS, and then moving window characteristic peak orthogonal projections resolution algorithm combined with the flavor database established was employed to distinguish the essential oils and tinctures in mixed flavors. Finally, the parameters related to the algorithm and the factors influencing the qualitative results were discussed in detail. The five essential oils and the three tinctures which were mixed into unknown complex essence were distinguished accurately by the presented method, and the obtained results indicated that the proposed approach was indeed a very effective and promising way for the analysis of complex components in mixed flavors.