Chromatography Forum

Posted: **Fri Feb 18, 2005 12:05 pm**

Hi, Do anyone have some information/method for detecting formic acid with GC-FID? Is it possible or does it make trouble. Thanks

Posted: **Fri Feb 18, 2005 2:39 pm**

I'd suggest ion chromatography.

Posted: **Fri Feb 18, 2005 4:04 pm**

Formic acid has very little response indeed on a flame ionisation detector. In fact some people used to add it to the carrier gas to prevent adsorption of other acids which they were analyzing (I would NOT attempt this procedure and am NOT advocating it-there could be SAFETY ISSUES amongst other things).

Posted: **Fri Feb 25, 2005 9:51 pm**

use GC/MS...it works great!!!!!!!

Posted: **Mon Feb 28, 2005 5:03 pm**

Marita,

The other thought is to used a TCD detector unless you are after trace level amounts.

Regards,
Mark