Limonene 50ppb on b-caryo 50ppb seed

28.05.2009

Chamber DMPS setupusing wCPC 3786 (software thinks it is 3785)

Reading negative counts at sizes between 250 and 300nm!! And it thinks the chamber room has

50ugm-3 mass!

Sheath and excess flows are in very good agreement

DMPS is not working properly!

DMPS is not working properly!

It does not like the 3786

We now think that the increase in number at the beginning of each fill cycle is due to the last valve sticking (the longer

it sticks the higher the increase)

Nucleation within 7min of lights on

Number leveled at <5500p/ccused to get to ~30000 p/cc with the old filter

3786 and 3785 agreed in total number suggesting that it is not a cpc cut off difference

Diluted

Limonene nucleated in less than 25min!!

Limo nucleated in less than 25min