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AsH3 (arsine measurement)
Posted: Fri Jun 28, 2013 5:53 pm
by tigerk2001
Try to measure 10ppm AsH3 using PDHID(VICI) and packed 10 feet HaysepD or capillary 30 metersMTX Q Bond and can't get any peak.
Some propositions??
Re: AsH3 (arsine measurement)
Posted: Fri Jun 28, 2013 10:38 pm
by chromatographer1
AsH3 is basic like NH3.
See other thread on Ammonia.
Rod
Re: AsH3 (arsine measurement)
Posted: Sun Jun 30, 2013 6:16 am
by tigerk2001
I've been able to see the AsH3 peak using 100Celcius Hayesep D packed type column with Vici PDD. The peak starts to comes out after many injections of 0.5ml sampling loop volume of 10ppm AsH3 in balance helium. I've been able to understand that the AsH3 is absorbs by the column like O2 or CO in a Mol Sieve column. I've been able to repeat the phenomenon with 3 different columns.
Re: AsH3 (arsine measurement)
Posted: Tue Jul 02, 2013 10:24 am
by Johnny Rod
Depending on your matrix and all that, could you use a Draeger tube (or whatever similar is available in your country)?
Re: AsH3 (arsine measurement)
Posted: Tue Jul 02, 2013 10:32 pm
by tigerk2001
Can you clarify CSI?
Re: AsH3 (arsine measurement)
Posted: Wed Jul 03, 2013 9:24 am
by dblux_
Can you clarify CSI?
Crime scene investigations - TV serial