Automated gas chromatography

Patent · Fri Jan 01 00:00:00 EST 1999

OSTI ID:872380

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

---

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 National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
• 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

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