a-pinene 50ppb nox 33 ppb 11.07.2008. fill completed, allowing 20 min for instruments to stabilise...
Post on 19-Dec-2015
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A-Pinene 50ppbNox 33 ppb
11.07.2008
Fill completed, allowing 20 min for instruments to stabilise and measure background
Clean AMS measurement
11:00 Lights on
~ 11:07 nucleation started
52 MALO: very slow build up of number conc
100 MALO: number has not peaked yet, mass starting to come
2.25 HALO: CPC played up a bit
~ 3.5 HALO
4 HALO: I think the bag is not very clean.. Nucleation is about to stop..
Seeing some of the masses reported on Wed (bkgd) and Thursday!! 50amu difference
17:00 Lights off
After dilution
10 min later
Before dilution
After dilution