Response of An Electronic Sensor To Binary Solvent Mixtures in A Simulated Charcoal Bed Public Deposited

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  • February 28, 2019
  • Gartland, James G.
    • Affiliation: Gillings School of Global Public Health, Department of Environmental Sciences and Engineering
  • A study was performed which evaluated the ability of a charcoal bed breakthrough detector to be utilized under conditions where a binary mixture of solvents was passed through a bed. A Taguchi Gas Sensor (TGS 812) was used. Acetone and toluene were tested in a simulated charcoal bed system both singly and in binary mixtures over a range of concentrations. TGS response to acetone was much greater than to toluene. In addition, acetone achieved the charcoal service life endpoint (ie. 10% of the challenge concentration) more quickly. Toluene concentrations at the 10% breakthrough times for the acetone were insufficient to appreciably affect sensor response. It would thus appear that this detector can be utilized for the detection of a mixture of acetone and toluene if the alarm signal on the detector is preset for acetone. Sensor sensitivities were much weaker than found in a previous study with the same sensor.
Date of publication
Resource type
Rights statement
  • In Copyright
  • Dement, John M.
  • Fraser, David A.
  • Watson, James E.
  • Master of Science in Public Health
Academic concentration
  • Industrial Hygiene
Degree granting institution
  • University of North Carolina at Chapel Hill
Graduation year
  • 1986
Deposit record
  • 4229e0fb-b010-4ede-aa50-9d4a2f0726fb

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