Method and apparatus for detecting halogenated hydrocarbons
AssigneeThe Regents of the University of California Office of Technology Transfer
InventorsMatthew Monagle, John J. Coogan
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AssigneeThe Regents of the University of California Office of Technology Transfer
InventorsMatthew Monagle, John J. Coogan
Estimating the term…
A halogenated hydrocarbon (HHC) detector is formed from a silent discharge (also called a dielectric barrier discharge) plasma generator. A silent discharge plasma device receives a gas sample that may contain one or more HHCs and produces free radicals and excited electrons for oxidizing the HHCs in the gas sample to produce water, carbon dioxide, and an acid including halogens in the HHCs. A detector is used to sensitively detect the presence of the acid. A conductivity cell detector combines the oxidation products with a solvent where dissociation of the acid increases the conductivity of the solvent. The conductivity cell output signal is then functionally related to the presence of HHCs in the gas sample. Other detectors include electrochemical cells, infrared spectrometers, and negative ion mobility spectrometers.
A sensitive halogenated hydrocarbon (HHC) detector comprising:
A process for the sensitive detection of halogenated hydrocarbons (HHCs) in an air sample that may contain one or more of said HHCs comprising the steps of:
Dependencies are inferred from the claim text.