Ambient Pressure NO2 Sensor

Case ID:
GEOL-01
Web Published:
5/26/2009
Description:
The measurement of nitrogen dioxide (NO2) is important to both environmental monitoring and to research of flame, combustion, and surface chemistry.  Current methods and devices operate at very low, sub-ambient pressures, requiring a substantial pumping system and limiting their usefulness in applications in higher pressure environments where direct and non-intrusive measurement of NO2 are desirable.
 
PSU researchers have developed a selective and sensitive fluorescence based method and instrument for the direct measurement of NO2 at ambient pressure.  The current prototype has a limit of detection at 2ppb, and averaging interval of 60 seconds, and functions at 760 torr - without the requirement for high grade pumping systems - making it an exciting potential alternative to existing devices.
Patent Information:
Category(s):
Chemistry
For Information, Contact:
Joseph Janda
Director
Portland State University
janda@pdx.edu
Inventors:
Linda George
Jeremy Parra
Keywords:
Sensors
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