To Separate Particulate and Gaseous Constituents of Atmospheric Aerosols

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-FG02-10ER85821
Agency Tracking Number: 95284
Amount: $99,967.00
Phase: Phase I
Program: SBIR
Awards Year: 2010
Solicitation Year: 2010
Solicitation Topic Code: 32 c
Solicitation Number: DE-FOA-0000161
Small Business Information
935 Grayson Street, Berkeley, CA, 94710
DUNS: 845314962
HUBZone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: N
Principal Investigator
 Nathan Kreisberg
 (510) 649-9360
Business Contact
 Susanne Hering
Title: Dr.
Phone: (510) 649-9360
Research Institution
Semi-volatile organic compounds play an important role in the atmosphere. These constituents are involved atmospheric transformation processes, and are an important source of secondary organic aerosols and may play a significant role in the formation of cloud condensation nuclei. Unanswered questions include the relative importance of anthropogenic and biogenic volatile organic emissions to secondary aerosol formation, as well as their global distribution and their contribution to particle growth and hygroscopicity. With current methods it is difficult to accurately separate and sample the gaseous and particulate phases of semi-volatile organic compounds. Proposed here is a new method relying on the physical separation of vapor and particulate constituents based on a condensationally-enhanced particle focusing and concentration into a clean air stream. Commercial Applications and Other Benefits: Answers to these questions rely on accurately measuring the concentration and the phase partitioning of these compounds. This will be facilitated by more accurate, and hopefully less cumbersome technology for the clean separation of the gaseous and particle phase constituents of ambient aerosols. Further, the technique proposed may also find application in separating cloud droplets and interstitial semivolatile organic compounds

* Information listed above is at the time of submission. *

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