Extracting weathered oil samples (BTEX, semi/non/volatile )

[deed11]

Hi Everybody!

I am looking for an appropriate protocol for sampling and extracting to BTEX, and other volatile and semi-volatile hydrocarbons to monitor the early oil weathering in sea water. We intend to use GCxGC Instrument and therefore, wanna see both volatiles and semivolatiles in single chromatogram; means we don't wanna separately sample and extract for BTEX and other hydrocarbons.

Can we use SPME to extract both BTEX and other hydrocarbons simultaneously? And What about Sorptive Stirr Bar Extraction (I guess, in this case we need to know the partition coefficients which is impossible as we wanna scan around 1000s of compounds in the weathered oil samples)?

I would really appreciated a valuable input from you.

Thanks a lot and best regards,

[Don_Hilton]

Glen Frysinger has done a lot of work on weathered petroleum. He and his coauthors will have a lot of good work on sampling and extracting. Check him out on GCxGC.org