Dear Aheibam Loyanganba Meitei ,

direct extracts, e.g. in chloroform or DCM, are a pretty good way to analyse essential oils. Nevertheless, be aware that you may also extract other compounds like some fatty acids, waxes etc. Also remember to use a drying agent before injection.

Kind regards, Jacek

yes possible as for the percentage of yield is concerned its very less.

Regards

Jacek Łyczko and H.N. Nagendra Prasad thank you very much...

I could not find any standard approach, as my sample size in less and hard to find, if your have any resource please share...