I have an ethylene stream with a lot of trace impurities in it. For all of them except ammonia I can use a Gas Chromatograph with a FID (Flame Ionization Detector). In the case of ammonia a FID will not work. What type of detector would be best suited for ammonia (5-0.1 ppmv range). I also looked at a NPD (Nitrogen Phosphorus Detector) but it seems to only be good for nitrogen containing organic compounds. Any help (and sources) would be appreciated.
2006-11-08 05:45:52 · 4 answers · asked by ence 2 in Science & Mathematics ➔ Chemistry
The best bet is for you to contact a local college even a junior college will do and ask to speak to the Chemistry dept. chair or one of the organic chem. teachers on staff. I think that will give you them most reliable results, and it is probably safier to ask a professional about something as expensive as a GC.
2006-11-08 05:54:30 · answer #1 · answered by Chem_lover_Chris 2 · 0⤊ 0⤋
Ammonia should not be analyzed by GC at all. There are other tests that can be used for the determination of ammonia. HPLC or IC may work.
2006-11-08 07:10:30 · answer #2 · answered by xox_bass_player_xox 6 · 0⤊ 0⤋
You may want to try an ECD (Electron Capture Detector) or a TOF (Time of Flight) detector.....
2006-11-08 06:50:07 · answer #3 · answered by Annnie 2 · 0⤊ 0⤋
i think you can use IR detector which can detect ammonia peaks
2006-11-08 06:03:50 · answer #4 · answered by source_of_love_69 3 · 0⤊ 0⤋