Sensors & Electronics
Chemical Sensors
Preconcentration for Improved Detection (276)
Problem: Need rapid method with good sensitivity, selectivity, and dynamic range to measure metal ion concentrations in solution
Project Activity Scope (from Technical Overview Chart): Mechanisms through Sensors and Devices
PNNL Solution:
- Obtain desired selectivity with a two stage approach
- Chemical selectivity of the nanoporous sorbent phase
- Electrochemical detection of the analyte (e.g. stripping voltammetry)
- Response is linear to concentration (ppb sensitivity)
- Enables practical sensor develop that can be adapted for different ions
Capabilities Employed to Meet Client Needs: Material science (including self-assembling monolayers, ceramic materials, etc.); chemistry including surface chemistry and molecular interactions; molecular recognition mechanics; materials processing into specific morphologies (e.g., membranes, thin films, capillaries, etc.); materials characterization.
Selected Links to Related Information:
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- Related Websites
Contact: Yuehe Lin
