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Title: Portable system and method combining chromatography and array of electrochemical sensors

Abstract

A portable system for analyzing a fluid sample includes a small, portable, low-pressure and low-power chromatographic analyzer and a chemical parameter spectrometry monitor including an array of sensors for detecting, identifying and measuring the concentrations of a variety of components in the eluent from the chromatographic analyzer. The monitor includes one or more operating condition controllers which may be used to change one or more of the operating conditions during exposure of the sensors to the eluent from the chromatography analyzer to form a response pattern which is then compared with a library of previously established patterns. Gas and liquid chromatographic embodiments are disclosed. In the gas embodiment, the operating condition controllers include heated filaments which may convert electrochemically inactive components to electrochemically active products. In the liquid chromatography embodiment, low-power, liquid-phase equivalents of heated filaments are used with appropriate sensors. The library response patterns may be divided into subsets and the formed pattern may be assigned for comparison only with the patterns of a particular subset.

Inventors:
;
Publication Date:
Research Org.:
Argonne National Lab., IL (USA)
Sponsoring Org.:
USDOE
OSTI Identifier:
6531496
Patent Number(s):
4,888,295
Application Number:
06/881,310
Assignee:
Dept. of Energy
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; CHROMATOGRAPHY; PORTABLE EQUIPMENT; COMPUTERIZED CONTROL SYSTEMS; DESIGN; HAZARDOUS MATERIALS; OPERATION; SENSITIVITY; CONTROL SYSTEMS; EQUIPMENT; MATERIALS; SEPARATION PROCESSES; 440300* - Miscellaneous Instruments- (-1989)

Citation Formats

Zaromb, S, and Stetter, J R. Portable system and method combining chromatography and array of electrochemical sensors. United States: N. p., 1986. Web.
Zaromb, S, & Stetter, J R. Portable system and method combining chromatography and array of electrochemical sensors. United States.
Zaromb, S, and Stetter, J R. Wed . "Portable system and method combining chromatography and array of electrochemical sensors". United States. https://www.osti.gov/servlets/purl/6531496.
@article{osti_6531496,
title = {Portable system and method combining chromatography and array of electrochemical sensors},
author = {Zaromb, S and Stetter, J R},
abstractNote = {A portable system for analyzing a fluid sample includes a small, portable, low-pressure and low-power chromatographic analyzer and a chemical parameter spectrometry monitor including an array of sensors for detecting, identifying and measuring the concentrations of a variety of components in the eluent from the chromatographic analyzer. The monitor includes one or more operating condition controllers which may be used to change one or more of the operating conditions during exposure of the sensors to the eluent from the chromatography analyzer to form a response pattern which is then compared with a library of previously established patterns. Gas and liquid chromatographic embodiments are disclosed. In the gas embodiment, the operating condition controllers include heated filaments which may convert electrochemically inactive components to electrochemically active products. In the liquid chromatography embodiment, low-power, liquid-phase equivalents of heated filaments are used with appropriate sensors. The library response patterns may be divided into subsets and the formed pattern may be assigned for comparison only with the patterns of a particular subset.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {7}
}

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