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Title: Devices and methods to detect and quantify trace gases

Sensing devices based on a surface acoustic wave ("SAW") device coated with an absorbent crystalline or amorphous layer for detecting at least one chemical analyte in a gaseous carrier. Methods for detecting the presence of a chemical analyte in a gaseous carrier using such devices are also disclosed. The sensing devices and methods for their use may be configured for sensing chemical analytes selected from the group consisting of water vapor, carbon dioxide, methanol, ethanol, carbon monoxide, nitric oxide, nitrous oxide, organic amines, organic compounds containing NO.sub.2 groups, halogenated hydrocarbons, acetone, hexane, toluene, isopropanol, alcohols, alkanes, alkenes, benzene, functionalized aromatics, ammonia (NH.sub.3), phosgene (COCl.sub.2), sulfur mustard, nerve agents, sulfur dioxide, tetrahydrofuran (THF) and methyltertbutyl ether (MTBE) and combinations thereof.
Inventors:
;
Issue Date:
OSTI Identifier:
1250451
Assignee:
Sandia Corporation (Albuquerque, NM) SNL-A
Patent Number(s):
9,329,154
Application Number:
13/633,772
Contract Number:
AC04-94AL85000
Resource Relation:
Patent File Date: 2012 Oct 02
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Other works cited in this record:

Ultrasensitive Humidity Detection Using Metal–Organic Framework-Coated Microsensors
journal, August 2012
  • Robinson, Alex L.; Stavila, Vitalie; Zeitler, Todd R.
  • Analytical Chemistry, Vol. 84, Issue 16, p. 7043-7051
  • DOI: 10.1021/ac301183w

Method and apparatus for detecting an analyte
patent, November 2011

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