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Method and apparatus for controlling gas evolution from chemical reactions

United States Patent

5,906,943
May 25, 1999
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
The present invention is directed toward monitoring a thermally driven gas evolving chemical reaction with an acoustic apparatus. Signals from the acoustic apparatus are used to control a heater to prevent a run-away condition. A digestion module in combination with a robotic arm further automate physical handling of sample material reaction vessels. The invention is especially useful for carrying out sample procedures defined in EPA Methods SW-846.
Skorpik; James R. (Kennewick, WA), Dodson; Michael G. (Richland, WA)
Battelle Memorial Institute (Richland, WA)
08/ 700,603
August 14, 1996
This invention was made with Government support under Contract DE-AC06 76RLO 1830 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.