Post by n***@gmail.comWhy cannot water be analyzed using Flame ionization detector (FID) in
GC?
1) Water cannot be detected by an FID detector because it does not burn.
Only combustible analytes can be detected by FID. In general, analytes
with more carbon atoms give higher response.
2) Water is not a good solvent to use for dissolving GC samples in
because (1) water expands to a very large volume when it goes from
liquid to gaseous state causing problems in the injector and (2) it may
cause damage (hydrolysis) to the GC column.
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