Distinguishing gasoline from different manufacturers using GC /LC

Chromatography Forum: GC Archives: Distinguishing gasoline from different manufacturers using GC /LC
Top of pagePrevious messageNext messageBottom of pageLink to this message  By Kaycey on Sunday, December 2, 2001 - 04:30 pm:

Is it possible to separate gasolines solely based on maufacturer using GC/LC or would another type of spectroscopy have to be employed?


Top of pagePrevious messageNext messageBottom of pageLink to this message  By Gerhard Kratz on Monday, December 3, 2001 - 04:18 am:

Hello,
GC is used for such a separation. Have a look on a GC-capillary manufacturer's homepage or catalog. There you will find also applications. If you don't know such companies, here are some examples: Restek, Supelco, J&W and a lot more!
Good luck.
Gerhard


Top of pagePrevious messageNext messageBottom of pageLink to this message  By Anonymous on Monday, December 3, 2001 - 05:15 am:

As was mentioned, cap GC is the way to go here. However, your goal of distiguising on manufacturer from another may be difficult. Each sample you analyze from each manufacturer will likley show subtle differences, but formulations change during the year, are different from different regions of the country, are even different from refinery to refinery. As well, a gasoline sample can be affected by age and storage conditions. Will you be able to tell if one gas sample is different than another, yes without a doubt. Will you be able to tell which company produced it, maybe, but it will be a lot of work.


Top of pagePrevious messageNext messageBottom of pageLink to this message  By Anonymous on Monday, December 3, 2001 - 10:47 am:

There are also co-operative distribution agreements so that in some parts of the country gas sold as Exxon may be refined by a Texaco refinery (example only) or vice versa.


Top of pagePrevious messageNext messageBottom of pageLink to this message  By B.Buglio on Monday, December 3, 2001 - 05:27 pm:

FTIR may be a possibility for your purpose. I
think this technique was used to identify the
source of an oil spill in the Narragansett Bay.


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