Analysis of volatile fractions of Schisandra chinensis (Turcz.) baill. using GC-MS and chemometric resolution

The two‐dimensional data obtained from GC‐MS has been used qualitatively and quantitatively to determine the components of the volatile fractions of Schisandra chinensis obtained by six different extraction methods. Sub‐window factor analysis (SFA) was employed to confirm the identities of component...

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Bibliographic Details
Published in:Phytochemical analysis 2003, Vol.14 (1), p.23-33
Main Authors: Li, X.N, Cui, H, Song, Y.Q, Liang, Y.Z, Chau, F.T
Format: Article
Language:English
Subjects:
Gas Chromatography-Mass Spectrometry
Gases - analysis
Gases - chemistry
GC-MS
Magnoliaceae
mass spectrometry
medicinal plants
multivariate resolution
phytochemicals
plant extracts
Plant Extracts - chemistry
qualitative analysis
quantitative analysis
Schisandra - chemistry
Schisandra chinensis
sub-window factor analysis
volatile compounds
volatile fraction
Volatilization
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Summary:The two‐dimensional data obtained from GC‐MS has been used qualitatively and quantitatively to determine the components of the volatile fractions of Schisandra chinensis obtained by six different extraction methods. Sub‐window factor analysis (SFA) was employed to confirm the identities of components determined in different samples. With the help of SFA, and other chemometric techniques, peak purity in the chromatograms was determined, and overlapping peaks were resolved to yield a pure chromatographic profile and mass spectrum for each component. It is demonstrated that the accuracy of qualitative and quantitative analysis may be greatly enhanced using chemometric resolution methods, such methods being particularly valuable with respect to the analysis of complex samples such as traditional Chinese medicines. It is further demonstrated that different extraction methods give rise to volatile fractions of S. chinensis which differ qualitatively and quantitatively in their composition. Copyright © 2003 John Wiley & Sons, Ltd.
ISSN:0958-0344
1099-1565
DOI:10.1002/pca.674