Chromatography Forum

Posted: **Tue May 08, 2007 9:09 pm**

Dear all:
I'm about to purchase a new GC with ECD and NPD for pesticides analysis in sea water, and a FID for Petroleum determinations. Please advise if I could run into problems by trying to run these different types of samples on the same equipment.
Billquin

Posted: **Wed May 09, 2007 8:51 am**

First you need to check your new GC accepts three detector installed at the same time. Secondly what Hydrocarbons ? Running SIMDIS to high temperature is a problem as your Hydrocarbon column will need to go to a higher temperature than the maximum on the Pesticides column.

Posted: **Wed May 09, 2007 1:29 pm**

3 different detectors? I wonder how much more a MSD would cost. With that, you could run pretty much anything...

Posted: **Wed May 09, 2007 2:17 pm**

Thanks a lot. This gives me a better basis before placing the PO.

Posted: **Wed May 09, 2007 2:18 pm**

Other than not using chlorinated solvents, which both the NPD and ECD would not like, I don't see any issues with the three detectors you have chosen.

Best regards.

Chromatography Forum

GC application conflict

GC application conflict