question about sample preparation prior to GC (urgent)

[aysegul]

hello!

can anybody suggest me a method for preparation of sebasic acid, heptanal and undecylenic acid before introducing to GC or can I directly analyse them in GC without any pretreatment?? we generally use methylation method (BF3) for vegetable oils, can we apply this method also for these compounds??

thanks...

[Radish]

Heptanal requires no derivatization.

[aysegul]

I've wanted to ask something else, can anybody suggest me a web address that can be helpful what I'm searching for? do you know an internet site that I can get detailed information about GC?

thanks

P.S.: thank you Radish

[Consumer Products Guy]

Personally, we'd try first dissolving the sample in DMF, derivatizing with BSTFA, and assay on a non-polar polysiloxane column such as DB-1 or DB-5.