Giggs

Actually I cannot use anythimg else, I'm using tetralin because it is saturated with Hydrogen, its usefull for my application.

Is there a way to set the GC or somthing to correct this.

Hi all, I'm very unexperienced in GC and I'm currently analyzing some crude oil samples but seem to have a problem or maybe not, I dont know. I added 5% Tetralin (C10H12 or 1,2,3,4-Tetrahydronaphthalene) to some of the crude oil samples, and anticapated expected the C10 group to increase noticeably but what I observed was that the C12 group increased. And this is in six different samples, whats happening here. thanks