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.
| Original language | English |
|---|---|
| Pages (from-to) | 3899-3903 |
| Number of pages | 5 |
| Journal | Nano Letters |
| Volume | 10 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - Oct 13 2010 |
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Keywords
- gas chromatography
- gas detectors
- mass sensing
- NEMS
ASJC Scopus subject areas
- Condensed Matter Physics
- Bioengineering
- Chemistry(all)
- Materials Science(all)
- Mechanical Engineering
Cite this
Nanoelectromechanical resonator arrays for ultrafast, gas-phase chromatographic chemical analysis. / Li, Mo; Myers, E. B.; Tang, H. X.; Aldridge, S. J.; McCaig, H. C.; Whiting, J. J.; Simonson, R. J.; Lewis, Nathan S; Roukes, M. L.
In: Nano Letters, Vol. 10, No. 10, 13.10.2010, p. 3899-3903.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Nanoelectromechanical resonator arrays for ultrafast, gas-phase chromatographic chemical analysis
AU - Li, Mo
AU - Myers, E. B.
AU - Tang, H. X.
AU - Aldridge, S. J.
AU - McCaig, H. C.
AU - Whiting, J. J.
AU - Simonson, R. J.
AU - Lewis, Nathan S
AU - Roukes, M. L.
PY - 2010/10/13
Y1 - 2010/10/13
N2 - 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.
AB - 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.
KW - gas chromatography
KW - gas detectors
KW - mass sensing
KW - NEMS
UR - http://www.scopus.com/inward/record.url?scp=77957922674&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77957922674&partnerID=8YFLogxK
U2 - 10.1021/nl101586s
DO - 10.1021/nl101586s
M3 - Article
VL - 10
SP - 3899
EP - 3903
JO - Nano Letters
JF - Nano Letters
SN - 1530-6984
IS - 10
ER -