Method for detecting toxic gases
Abstract
A method capable of detecting low concentrations of a pollutant or other component in air or other gas, utilizing a combination of a heating filament having a catalytic surface of a noble metal for exposure to the gas and producing a derivative chemical product from the component, and an electrochemical sensor responsive to the derivative chemical product for providing a signal indicative of the product. At concentrations in the order of about 1-100 ppm of tetrachloroethylene, neither the heating filament nor the electrochemical sensor is individually capable of sensing the pollutant. In the combination, the heating filament converts the benzyl chloride to one or more derivative chemical products which may be detected by the electrochemical sensor.
- Inventors:
-
- Naperville, IL
- Hinsdale, IL
- (Bolingbrook, IL)
- Issue Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- OSTI Identifier:
- 868013
- Patent Number(s):
- 5055266
- Assignee:
- ARCH Development Corporation (Argonne, IL)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- DOE Contract Number:
- W-31109-ENG-38
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; detecting; toxic; gases; capable; concentrations; pollutant; component; air; gas; utilizing; combination; heating; filament; catalytic; surface; noble; metal; exposure; producing; derivative; chemical; product; electrochemical; sensor; responsive; providing; signal; indicative; 1-100; ppm; tetrachloroethylene; neither; nor; individually; sensing; converts; benzyl; chloride; products; detected; method capable; electrochemical sensor; chemical sensor; noble metal; signal indicative; heating filament; chemical products; chemical product; derivative chemical; toxic gases; catalytic surface; toxic gas; /205/73/204/422/436/
Citation Formats
Stetter, Joseph R, Zaromb, Solomon, and Findlay, Jr., Melvin W. Method for detecting toxic gases. United States: N. p., 1991.
Web.
Stetter, Joseph R, Zaromb, Solomon, & Findlay, Jr., Melvin W. Method for detecting toxic gases. United States.
Stetter, Joseph R, Zaromb, Solomon, and Findlay, Jr., Melvin W. Tue .
"Method for detecting toxic gases". United States. https://www.osti.gov/servlets/purl/868013.
@article{osti_868013,
title = {Method for detecting toxic gases},
author = {Stetter, Joseph R and Zaromb, Solomon and Findlay, Jr., Melvin W.},
abstractNote = {A method capable of detecting low concentrations of a pollutant or other component in air or other gas, utilizing a combination of a heating filament having a catalytic surface of a noble metal for exposure to the gas and producing a derivative chemical product from the component, and an electrochemical sensor responsive to the derivative chemical product for providing a signal indicative of the product. At concentrations in the order of about 1-100 ppm of tetrachloroethylene, neither the heating filament nor the electrochemical sensor is individually capable of sensing the pollutant. In the combination, the heating filament converts the benzyl chloride to one or more derivative chemical products which may be detected by the electrochemical sensor.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1991},
month = {Tue Jan 01 00:00:00 EST 1991}
}