We are analyzing oxygen and nitrogen in our GasBench II and have replaced
the original PoraPLOT Q column with a 5A molecular sieve column.
I have reprogrammed the GasBench GC heater box temperature limit from 200
to 300 deg. C; however, the box will only reach a max of ~220 deg. C. The
output on the controller is set to 100% and the ramp rate has been set to 1
deg. C/minute (I read the recent post "burned GC column").
Has anybody had a similar problem and could they remedy this? I have
considered insulating the box or building a new external oven but I would like
to see what the community has done.
The University of Western Ontario