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Title: 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:
 [1];  [2];  [3]
  1. (Naperville, IL)
  2. (Hinsdale, IL)
  3. (Bolingbrook, IL)
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
868013
Patent Number(s):
5055266
Assignee:
ARCH Development Corporation (Argonne, IL) ANL
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 = {1991},
month = {1}
}

Patent:

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