Published October 2010
| Accepted Version + Supplemental Material
Journal Article
Open
Nanoelectromechanical Resonator Arrays for Ultrafast, Gas-Phase Chromatographic Chemical Analysis
Chicago
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Abstract
Miniaturized gas chromatography (GC) systems can provide fast, quantitative analysis of chemical vapors in an ultrasmall package. We describe a chemical sensor technology based on resonant nanoelectromechanical systems (NEMS) mass detectors that provides the speed, sensitivity, specificity, and size required by the microscale GC paradigm. Such NEMS sensors have demonstrated detection of subparts per billion (ppb) concentrations of a phosphonate analyte. By combining two channels of NEMS detection with an ultrafast GC front-end, chromatographic analysis of 13 chemicals was performed within a 5 s time window.
Additional Information
© 2010 American Chemical Society. Received for review: 05/4/2010. Published on Web: 08/26/2010. The authors thank X. L. Feng and I. Bargatin for useful discussions and S. Stryker for machining assistance. We gratefully acknowledge support from the Defense Advanced Research Projects Agency via DARPA/ MTO-MGA Grant NBCH1050001 and from the Department of Homeland Security. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under contract DE-AC04-94AL85000.Attached Files
Accepted Version - nihms-305220.pdf
Supplemental Material - nl101586s_si_001.pdf
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Additional details
- PMCID
- PMC3839305
- Eprint ID
- 20621
- DOI
- 10.1021/nl101586s
- Resolver ID
- CaltechAUTHORS:20101101-112952062
- Defense Advanced Research Projects Agency (DARPA)
- NBCHI050001
- Department of Homeland Security
- Department of Energy (DOE)
- DE-AC04-94AL85000
- Created
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2010-11-29Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field