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Method and Apparatus for Sample Analysis

PSU researchers have developed a novel way to collect, concentrate and analyze gas samples for analysis, primarily in environmental applications. By increasing pressure and performing analyses on a focused gas sample, this technology easily and cheaply enables continuous and real-time monitoring of air quality. Emission sources are more easily identified....

Published: 7/23/2009 | Updated: 7/23/2009 | Inventor(s): Robert O'brien, Thomas Smith

Keywords(s): Diagnostics, Mechanical & Materials Engineering, Sensors

Category(s): Chemistry

Nitrogen Dioxide Gas Sensor

PSU researchers have developed a new chemical gas sensor capable of detecting nitrogen dioxide (NO2) at levels less than 100ppb (two orders of magnitude more sensitive than current chemiluminescent based NOx sensors), having a dynamic linear range of parts per million to parts per billion, and a speed of detection of 60-120 seconds. Unlike existing...

Published: 7/24/2009 | Updated: 7/20/2009 | Inventor(s): Shalini Prasad, Linda George, Divakara Meka

Keywords(s): Electronics, Nanotechnology, Sensors

Category(s): Chemistry

Ambient Pressure NO2 Sensor

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...

Published: 7/20/2009 | Updated: 5/26/2009 | Inventor(s): Linda George, Jeremy Parra

Keywords(s): Sensors

Category(s): Chemistry