Electrolysis: processes – compositions used therein – and methods – Electrolytic analysis or testing – For ph
Patent
1997-12-08
2000-01-04
Bell, Bruce F.
Electrolysis: processes, compositions used therein, and methods
Electrolytic analysis or testing
For ph
205775, 2057825, 204406, 204415, 204418, 422 8202, 422 8212, 422 98, 436150, 324691, 324693, 338 7, 338 13, 338 14, 73 232, 73 2331, 73 2334, 7333505, G01N 2726
Patent
active
060106166
ABSTRACT:
A sensor array for detecting an analyte in a fluid, comprising at least first and second chemically sensitive resistors electrically connected to an electrical measuring apparatus, wherein each of the chemically sensitive resistors comprises a mixture of nonconductive material and a conductive material. Each resistor provides an electrical path through the mixture of nonconductive material and the conductive material. The resistors also provide a difference in resistance between the conductive elements when contacted with a fluid comprising an analyte at a first concentration, than when contacted with an analyte at a second different concentration. A broad range of analytes can be detected using the sensors of the present invention. Examples of such analytes include, but are not limited to, alkanes, alkenes, alkynes, dienes, alicyclic hydrocarbons, arenes, alcohols, ethers, ketones, aldehydes, carbonyls, carbanions, polynuclear aromatics, organic derivatives, biomolecules, sugars, isoprenes, isoprenoids and fatty acids. Moreover, applications for the sensors of the present invention include, but are not limited to, environmental toxicology, remediation, biomedicine, material quality control, food monitoring and agricultural monitoring.
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Freund Michael S.
Lewis Nathan S.
Bell Bruce F.
California Institute of Technology
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