Flame out
Posted: Fri Aug 11, 2017 2:26 pm
by Aalia
Anybody who are using gas chromatography 7890A help me. I am using GC7890A with cp-wax 58 ffap 25m length 0.53mm diameter column. But it is not working tried so many times stilll flame out. Once light out and inject one or two sample then flame out. What i do help mee plzzz
Re: Flame out
Posted: Fri Aug 11, 2017 3:08 pm
by Consumer Products Guy
1. Try injecting a smaller volume of sample
2. Set FID peak offset from default of 2 to 0.5 I think that's the right way, I'm retired now, so can't run in to check)
3. Check your FID hydrogen flow and air flow, and you shouldn't need make-up gas with 0.5mm i.d. column