By Kaycey on Sunday, December 2, 2001 - 04:33 pm:
Is it possible to separate gasolines solely based on maufacturer using GC or would another type of spectroscopy have to be employed?
By Anonymous on Monday, December 3, 2001 - 08:56 am:
Gasolines are basically the same components. Individuality occurs through use of additive packages. The detergents and lubrication packages.
We blend gasoline to be sold to ExxonMobil, Shell and more than likely others. The additive package for the specific brand is added at the terminal.
The id of a gasoline source would more than likely be based on the dyes and/or additives.
By Anonymous on Wednesday, December 12, 2001 - 10:36 am:
Agilent has developed a few GC/MS solutions for this for a couple of major petrochem producers. One such is a library search application that takes the scans and searches a fingerprint library of knowns and gives the correct match. If you would like to know more, call Agilent at 800-227-9770 and ask for Jim Crabtree in the call center for this application.
By Anonymous on Friday, January 18, 2002 - 02:51 pm:
I agree with the answer of the first anonymous on December 3. There is also something else to consider. During the year the manufacturers are changing the composition of the gasoline. In the winter it is different compared to the summer. Also it differs per country. You can check the website of AC Analytical Controls. They are experts on petrochemical analyses. Maybe they have a solution for your problem.
http://www.analytical-controls.com
(I am not an employee of this company)
By Jim Gorum on Tuesday, January 29, 2002 - 01:40 pm:
Kaycey,
Of course it is possible. The question is how much work can you put into finding out. You can find similar kinds of work in the chemometrics literature for crude oil. The other answers covered the ground, you must have samples of all the possible sources, samples of all the changes in each source. Principle component analysis followed by factor analysis will get you through.
Jim
By Anonymous on Monday, August 26, 2002 - 05:42 pm:
What can be done with analyses that are below the
detection limit of the technique?
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