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Automated gas chromatography

United States Patent

5,922,106
July 13, 1999
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
An apparatus and process for the continuous, near real-time monitoring of low-level concentrations of organic compounds in a liquid, and, more particularly, a water stream. A small liquid volume of flow from a liquid process stream containing organic compounds is diverted by an automated process to a heated vaporization capillary where the liquid volume is vaporized to a gas that flows to an automated gas chromatograph separation column to chromatographically separate the organic compounds. Organic compounds are detected and the information transmitted to a control system for use in process control. Concentrations of organic compounds less than one part per million are detected in less than one minute.
Mowry; Curtis D. (Albuquerque, NM), Blair; Dianna S. (Albuquerque, NM), Rodacy; Philip J. (Albuquerque, NM), Reber; Stephen D. (Corrales, NM)
Sandia Corporation (Albuquerque, NM)
09/ 063,234
April 20, 1998
This invention was made with Government support under Contract No. DE-AC04-94AL85000 awarded by the Department of Energy. The Government has certain rights in the invention.