Sensors & Electronics
Chemical Sensors
Semi-Volatile Chemical Stability (226)
Problem: Need to understand the degradation and stability of important semi-volatile (and volatile) chemicals in the environment
Project Activity Scope (from Technical Overview Chart): Mechanisms through Sensors and Devices
PNNL Solution:
- Develop specialized test chamber to evaluate chemical reactions in the atmosphere and on environmental media
- Assemble instrumentation to determine chemical kinetics, degradation products and reaction rates
- Determine stability of residual chemicals
- Use to evaluate chemicals and sensors for specific application conditions
Capabilities Employed to Meet Client Needs: Design and fabrication of inert Teflon chamber (to minimize wall effects) and large-volume preconcentrator; UV-A simulation of sunlight O3, hydroxy radicals, and other reaction mechanisms; Analysis by GCMS, GC, long-path FTIR, UV photolysis, chemiluminescence particle counting and acoustic gas analysis.
Selected Links to Related Information:
- Similar Application Examples (Same or Different Technology)
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Contact: Jerome Birnbaum
