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![Page 1: Www.rti.org RTI International is a registered trademark and a trade name of Research Triangle Institute. A Real-Time VOC Sensor for Vapor Intrusion Investigations.](https://reader030.fdocuments.net/reader030/viewer/2022032804/56649e425503460f94b349fc/html5/thumbnails/1.jpg)
www.rti.orgRTI International is a registered trademark and a trade name of Research Triangle Institute.
A Real-Time VOC Sensor for Vapor Intrusion Investigations
Initial Development and Next Research Steps
Robert Truesdale, Li Han, Chris Lutes
![Page 2: Www.rti.org RTI International is a registered trademark and a trade name of Research Triangle Institute. A Real-Time VOC Sensor for Vapor Intrusion Investigations.](https://reader030.fdocuments.net/reader030/viewer/2022032804/56649e425503460f94b349fc/html5/thumbnails/2.jpg)
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Basic Concept and Initial PrototypesOperates on the principle of conductivity changes of composite polymer nanofibers when exposed to sub-ppmv levels of VOCs
Can be tuned to target VOC classes by selecting polymers with appropriate moieties
Wearable – networkable . . . . Compound specific?
![Page 3: Www.rti.org RTI International is a registered trademark and a trade name of Research Triangle Institute. A Real-Time VOC Sensor for Vapor Intrusion Investigations.](https://reader030.fdocuments.net/reader030/viewer/2022032804/56649e425503460f94b349fc/html5/thumbnails/3.jpg)
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VOC Sensor – Performance and next steps
Performance to date:
1. Proof of concept – detection of TCE and PCE at sub-ppbv levels
2. Rapid response – minutes.
Next steps:
1. Develop improved prototypes: PMMA, PU+CNTs
2. Field test against Summas, passive samplers.