Method of making a device for determining analyte activity

Details Method of making a device for determining analyte activity Method of making a device for determining analyte activity

1982-10-28

1984-08-28

Kaplan, G. L.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156229, 156253, 204416, 204418, 204419, 204420, 422 58, B32B 3118, B32B 3120, G01N 2730

Patent

active

044682719

ABSTRACT:
A device is disclosed for determining the ionic analyte activity in liquids, e.g. aqueous solutions, by the use of electrodes and an internal capillary bridge which promotes ionic migration between the electrodes. This device includes an electrically insulative frame in which the electrodes are mounted, liquid access holes aligned with the electrodes on a capillary bridge formed of a porous material, and a cover sheet element formed of a nonporous cover sheet. The cover sheet element extends over the electrodes and encapsulates the elongated capillary bridge. Located in the cover sheet directly over and generally along the capillary bridge is one or more substantially continuous stretch lines typically provided by mechanically deforming the cover sheet. This deformation allows shorter junction times when liquids are introduced into the liquid access holes.

REFERENCES:
patent: 4053381 (1977-10-01), Hamblen et al.
patent: 4184936 (1980-01-01), Paul et al.
patent: 4336091 (1982-06-01), Gottermeier

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