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Title: 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:
 [1];  [1];  [1];  [2]
  1. Albuquerque, NM
  2. 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}
}

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Works referenced in this record:

On-line capillary gas chromatography with automated liquid sampling, a powerful tool in biotechnology
journal, December 1991