Sensors & Electronics
Chemical Sensors
IMS Optimization for BTEX Analysis (273)
Problem: Need a robust, sensitive, portable, field deployable sensor system for BTEX analysis.
Project Activity Scope (from Technical Overview Chart): Mechanisms through Integrated Systems
PNNL Staff Solution:
- COTS IMS sensors have problems with BTEX (benzene, toluene, ethyl benzene, xylenes) due to the low proton affinity of these chemicals, which leads to very poor detection.
- But an optimized IMS could meet the detection requirements
2. Use photoionization source to provide stable ions from BTEX compounds for detection (Stages 1, 3 and 4 needed no adaptation)
Capabilities Employed to Meet Client Needs: Ion mobility spectrometry; gas phase ion chemistry; ionization source design; data acquisition software development; sampling methodologies; data analysis algorithms; analog and digital electronics, including high voltage implementation; mechanical component and packaging design; system integration; field testing and demonstration; field deployment and customer user training; develop operations and service manuals.
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Contact: David Atkinson
