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Analysis of Lemongrass Essential Oil by
GC-MS
In this example of GC
analysis, seven components of lemongrass essential oil are shown. Components B
and D with the retention time of 12.95 and 13.92 minutes respectively are the
major constituents of interest. If we are using the destructive method of
detection method such as FID, this is all the information we get and our
interpretation of the spectra is rather limited to just comparison based on
retention times. On this basis, one may suspect that the minor component A could
be a number of possibilities including linalool. The GC and MS analysis of the
linalool standard is shown below:
 
The MS pattern of the standard was similar
with that obtained from the lemongrass oil component A and hence led to its
identification as linalool. Similarly component C of the lemongrass
essential oil was identified as geraniol based on the following data:
What are components B & D?>>Next Page
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