Chromatography Forum

Posted: **Sun Nov 14, 2010 2:40 pm**

Hi every body...

PLZ, what is the appropriate temperatures setting in GC for compounds, I mean what is the rule for setting temp. for injector, column and detector. I set this conditions for ethanol:
Injector: 150 c
Column: 90 c
Detector: 190 c
Is this right?

Thanks

Posted: **Sun Nov 14, 2010 2:45 pm**

Depending on the column, injector and column temperatures look to be OK. Detector temperature depends on the detector.

So, what column and detector? (And have you checked the manual for the instrument for standard detector conditions. Most of manuals for newer instruments can be found on line.)

Posted: **Sun Nov 14, 2010 4:19 pm**

Thanks for replay

it is FID detector and Packed column

Posted: **Sun Nov 14, 2010 8:28 pm**

Don is correct.

You could increase all three temperatures to 200Â°C and still be fine, as long as your column can tolerate that temperature.

I would not go below 150Â°C for injector or detector in most circumstances.

I would not go below 60Â°C for the column. But there are exceptions for special circumstances.

Rod

Chromatography Forum

appropriate temperatures GC

appropriate temperatures GC