Automated gas chromatography
Abstract
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.
- Inventors:
-
- Albuquerque, NM
- Corrales, NM
- Issue Date:
- Research Org.:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- OSTI Identifier:
- 872380
- Patent Number(s):
- 5922106
- Assignee:
- Sandia Corporation (Albuquerque, NM)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 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/
Citation Formats
Mowry, Curtis D, Blair, Dianna S, Rodacy, Philip J, and Reber, Stephen D. Automated gas chromatography. United States: N. p., 1999.
Web.
Mowry, Curtis D, Blair, Dianna S, Rodacy, Philip J, & Reber, Stephen D. Automated gas chromatography. United States.
Mowry, Curtis D, Blair, Dianna S, Rodacy, Philip J, and Reber, Stephen D. Fri .
"Automated gas chromatography". United States. https://www.osti.gov/servlets/purl/872380.
@article{osti_872380,
title = {Automated gas chromatography},
author = {Mowry, Curtis D and Blair, Dianna S and Rodacy, Philip J and Reber, Stephen D},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}
Works referenced in this record:
On-line capillary gas chromatography with automated liquid sampling, a powerful tool in biotechnology
journal, December 1991
- Filippini, C.; Moser, J. U.; Sonnleitner, B.
- Analytica Chimica Acta, Vol. 255, Issue 1