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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:
 [1];  [2]
  1. Hinsdale, IL
  2. Naperville, IL
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
867216
Patent Number(s):
4888295
Assignee:
United States of America as represented by United States (Washington, DC)
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
portable; method; combining; chromatography; array; electrochemical; sensors; analyzing; fluid; sample; low-pressure; low-power; chromatographic; analyzer; chemical; parameter; spectrometry; monitor; including; detecting; identifying; measuring; concentrations; variety; components; eluent; operating; condition; controllers; change; conditions; exposure; form; response; pattern; compared; library; previously; established; patterns; gas; liquid; embodiments; disclosed; embodiment; heated; filaments; convert; electrochemically; inactive; active; products; liquid-phase; equivalents; appropriate; divided; subsets; formed; assigned; comparison; particular; subset; response patterns; liquid chromatograph; chemical sensors; fluid sample; electrochemical sensor; chemical sensor; operating conditions; liquid chromatography; liquid chromatographic; operating condition; electrochemically active; chemically active; active components; response pattern; electrochemical sensors; heated filament; active component; chemical parameter; /436/73/422/

Citation Formats

Zaromb, Solomon, and Stetter, Joseph R. Portable system and method combining chromatography and array of electrochemical sensors. United States: N. p., 1989. Web.
Zaromb, Solomon, & Stetter, Joseph R. Portable system and method combining chromatography and array of electrochemical sensors. United States.
Zaromb, Solomon, and Stetter, Joseph R. Sun . "Portable system and method combining chromatography and array of electrochemical sensors". United States. https://www.osti.gov/servlets/purl/867216.
@article{osti_867216,
title = {Portable system and method combining chromatography and array of electrochemical sensors},
author = {Zaromb, Solomon and Stetter, Joseph 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 = {1989},
month = {1}
}

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