Battelle Memorial Institute

Michael J Murphy

Bruce F Monzyk

Chad M Cucksey

F Michael Von Fahnestock

David N Clark

Michael J Swickrath

Andrew J Savage

Russell R Greene

John A McArthur

Steven C Lorence

Brian J Blackstone

Thomas A Malloy, Iv

John A Mcarthur

Thomas A Iv Malloy

A dual quartz crystal microbalance (QCM) sensor is disclosed for use in a hand-held detection device () for detecting the presence of an odorant in hydrocarbon gaseous fuels. The odorant is a thiol-based compound, such as ethanethiol. One QCM () is coated with a coating typically containing a reagent that specifically reacts with the thiol of the odorant and alters its oscillation frequency as a result of mass gained in the reaction. A second QCM (') serves as a control and the two frequency signals may be heterodyned () to produce a delta-frequency representative of the mass change. Circuitry and signal processing () are used to produce a final result correlated to the level of thiol in the hydrocarbon gas.

Method and device for detecting odorants in hydrocarbon gases

A quartz crystal microbalance (QCM) is disclosed for use in a hand-held detection device for detecting the presence of an odorant in hydrocarbon gaseous fuels. The odorant is a thiol-based compound, such as ethanethiol. The QCM is coated with a coating typically containing a reagent that specifically reacts with the thiol of the odorant and alters its oscillation frequency as a result of mass gained in the reaction. Signal measurement and processing circuitry is provided for monitoring the change in oscillation frequency, for nulling out the effect of interfering compounds, and for reporting out the result.

Compositions containing ferrate(VI) are disclosed. Also, methods are disclosed that utilize ferrate(VI).

Ferrate(VI)-containing compositions and methods of using ferrate(VI)

Method and composition for decomposing and detoxifying chemical warfare agents, organic toxic compounds (e.g., pesticides), and for removal of contaminants in materials including fuels. The method and composition are based on ferrate (VI). The ferrate is typically applied to a contaminated surface or volume with a phase transfer catalyst and/or with a carrier.

Decontaminant

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Dublin, OH, United States of America

Michael J Murphy