A NOVEL METHOD FOR TERPENE PATTERN DETERMINATION OF ESSENTIAL OILS BY SELECTIVITY TUNING IN GC

被引：5

作者：

ENGEWALD, W ^{[1
]}

KNOBLOCH, T ^{[1
]}

HAUFE, G ^{[1
]}

MULLER, M ^{[1
]}

POHRIS, V ^{[1
]}

机构：

[1] TECH UNIV DRESDEN,DEPT FOREST SCI,O-8223 THARANDT,GERMANY

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1991年 / 341卷 / 10期

关键词：

D O I：

10.1007/BF00322279

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Selectivity tuning is used in a system of series-coupled GC-columns of different polarity in order to improve the analysis of complex samples of essential oils. It is shown that selectivity tuning by changing the flow-rates in the single columns can be used for improving both the resolution and the reliability of identification. Furthermore, by combining this method with column switching techniques (multidimensional GC) a reduction of sample complexity could be reached. Isothermal retention indices of 35 terpenoid compounds were ascertained using a non-polar and a polar capillary column serving as the input-values of a computer program which enables the prediction of system retention times at any adjusted flow-rate. Therefore, promising chromatographic conditions for the separation of interesting compounds could be selected without great experimental effort and some of these compounds could be identified with a high degree of reliability.

引用

页码：641 / 643

页数：3

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