Automated gas chromatography

Patent · Fri Jan 01 04:00:00 EST 1999

OSTI ID:872380

Mowry, Curtis D ^[1]; Blair, Dianna S ^[1]; Rodacy, Philip J ^[1]; Reber, Stephen D ^[2]

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1. Albuquerque, NM
2. Corrales, NM

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.

• Research Organization: SANDIA CORP
• DOE Contract Number: AC04-94AL85000
• Assignee: Sandia Corporation (Albuquerque, NM)
• Patent Number(s): US 5922106
• OSTI ID: 872380
• Country of Publication: United States
• Language: English

Related Subjects

/95/73/96/
apparatus
automated
automated process
capillary
chromatograph
chromatographically
chromatography
column
compounds
concentrations
containing
containing organic
continuous
control
detected
diverted
flow
flows
gas
gas chromatograph
gas chromatography
heated
information
liquid
liquid process
liquid volume
low-level
million
minute
monitoring
near
near real-time
organic
organic compound
organic compounds
particularly
process
process control
process stream
real-time
real-time monitoring
separate
separation
separation colum
separation column
stream
stream containing
time monitoring
transmitted
vaporization
vaporized
volume
water
water stream