July 11, 2020, 03:30:53 AM
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Topic: Flame Ionization Detector  (Read 2774 times)

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Offline Ibin-Huan

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Flame Ionization Detector
« on: May 27, 2010, 03:23:31 AM »
Hi
Why in FID do we add H2 gas to carrier gas and O2 to eluent in GC?
Thank you

Offline Golden_4_Life

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Re: Flame Ionization Detector
« Reply #1 on: May 27, 2010, 02:30:03 PM »
H2 Hydrogen is the flammable gas that keeps the FID flame lit "on".

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Offline JGK

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Re: Flame Ionization Detector
« Reply #2 on: May 27, 2010, 03:13:26 PM »
The FID is a hydrogen in air flame   1 part hydrogen: 9 parts air (approx)

If you're using oxygen instead of air, be prepared for a big explosion.  :o
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