Compound chemically sensitive element

Details Compound chemically sensitive element Compound chemically sensitive element

1980-05-08

1981-12-15

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

128635, 204195R, 204195P, 204195B, 204195S, 357 25, G01N 2730

Patent

active

043058027

ABSTRACT:
A compound chemically sensitive element comprises a chemically sensitive assembly which is selectively sensitive to a specific ion or a specific substance in a material to be examined, and a pH sensor having an insulated gate field effect transistor structure, both of which are separately manufactured. The chemically sensitive assembly and the insulated gate of the pH sensor are electrochemically connected together by a conductive resin, thus improving the durability and the selectivity of the element. In this manner, limitations imposed upon the manufacture of MOS pH sensor is removed, permitting a wide variety of chemically sensitive films to be used.

REFERENCES:
patent: 4020830 (1977-05-01), Johnson et al.
patent: 4218298 (1980-08-01), Shimada et al.

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