Conductive polymer selective species sensor

Details Conductive polymer selective species sensor Conductive polymer selective species sensor

1991-06-03

1992-09-08

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

422 58, 422 88, 422 90, 436902, 73 3105, 73 3101, 338 13, 338 34, G01N 2704, H01C 700

Patent

active

051456451

ABSTRACT:
A selective chemical species detector including a conductive polymer based sensing element having a detectable characteristic, for example, the polymer resistivity, permanently altered on exposure to a first chemical species and not permanently altered on exposure to a second chemical species. The detector then determines a permanent change in the detected characteristic and indicates the presence of a chemical species on detection of a such a permanent characteristic change. Also disclosed is a method of fabricating such a sensing element to achieve the desired selectivity.

REFERENCES:
patent: 4423407 (1983-12-01), Zuckerman
patent: 4542640 (1985-09-01), Clifford
patent: 4638286 (1987-01-01), Nichols
patent: 4638443 (1987-01-01), Kaneyasu et al.
patent: 4910149 (1990-03-01), Okube et al.

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