-
- Posts: 86
- Joined: Sat Nov 28, 2015 5:46 pm
We're installing a GOW MAC 350 w/TCD for the analysis of fixed gases (ie. CO2, CO, N2, etc). The GC can use either Helium, Nitrogen or Argon as the carrier gas, just wondering if anyone had any recommendations on this.
I know as a general rule that I cannot detect (ie. analyte) the same compound that makes up the carrier gas. For example, if I use N2, I cannot detect N2.
But aside from this, are there any other factors I should consider in selecting a gas? Limits of detection, etc?
On the cost side, I'm assuming He would be the most expensive carrier gas to use.
Thanks,