Portable system and method combining chromatrography and array of electrochemical sensors

Patent · Mon Jan 01 00:00:00 EST 1990

OSTI ID:7170912

Zaromb, S; Stetter, J R

This patent describes a system for analyzing a fluid sample including mixtures of components. The system comprising: chromatographic apparatus for achieving time-spaced separation of components of the sample. The chromatographic apparatus including a chromatographic column having an inlet and an outlet, means for introducing a carrier fluid to the inlet of the column, and means for introducing a fluid sample to the inlet of the column; detection means communicating with the outlet of the column for identifying and estimating the concentration of the components eluting from the column. Also described is a method for analyzing a fluid sample including mixtures of components. The method comprising the steps of: passing the fluid sample through a chromatographic column for achieving time-spaced separation of components of the sample eluting from the column, introducing the eluted components to an array of sensors including plural electrochemical sensors having differing electrochemical responses to a given one of the eluted components or to a derivative thereof dependent upon the chemical interaction of the component or a derivative thereof with each of the sensors, operating on the component so as to selectively alter the response thereto by the sensors, arranging all of the responses of all of the sensors in the array of sensors into a response pattern and comparing the formed response pattern with a set of previously established response patterns to identify the component.

• Assignee: U.S. Dept. of Energy, Washington, DC
• Patent Number(s): US 4888295; A
• Application Number: PPN: US 6-881310A
• OSTI ID: 7170912
• Resource Relation: Patent File Date: 2 Jul 1986
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
47 OTHER INSTRUMENTATION
CHROMATOGRAPHY
SEPARATION EQUIPMENT
ELECTROCHEMISTRY
FLUIDS
MEASURING METHODS
QUANTITATIVE CHEMICAL ANALYSIS
CHEMICAL ANALYSIS
CHEMISTRY
SEPARATION PROCESSES
400102* - Chemical & Spectral Procedures
440800 - Miscellaneous Instrumentation- (1990-)