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Limonene 50ppbon
Beta-Caryo SOA26.06.2008
Lights on at 09:49
10 min in: AMS already measuring tons of mass!!
DMPS is seeing very very little though!
Second DMPS scan: 20 min of lights on
Almost a factor of 4.5 higher than DMPS
AMS vs. DMPS
• The difference in mass is not really true.. The DMPS is averaging only every 10min while the AMS is measuring every 1 min. The Beta-Caryo SOA system changes really rapidaly and therefore a comparison cannot be held until the mass peaks and stabilises..
70 min after lights on
100min mass peaked
Lights off
Clean DMPS scanmass is down to ~ 9 ugm-3 and no change at all to
the mode!!
DMPS scan is averaged over time before and after lights on
After dilution
Still no mass formation
Blue distribution??No change in mass
No change still
About 70 min after lights onnucleation…
AMS mass increased slightly
~3 hours of lights on: Passed the second mass peak
17:16Lights off