Apparatus and methods for sensing fluid components

Details Apparatus and methods for sensing fluid components Apparatus and methods for sensing fluid components

1987-01-29

1988-08-09

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

204416, G01N 2726

Patent

active

047625945

ABSTRACT:
Provided herein is a method for accurate, reproducible analytical solution evaluation eliminating the need for a reference sensor by determining the activity of selected species employing species specific sensors and species combination sensors in conjunction with Nernst-type equations. Also provided are sensor structures for elimination of edge effects to signals thereby yielding accurate, reproducible measurements, and a cartridge structure adapted to incorporate an array of the new sensors for employment of the new method where the cartridge is particularly adapted for miniaturization, maintaining a fixed volume of solution for analysis and providing an anaerobic testing environment. Lastly, a compact instrument embodying miniaturization especially adapted for field use and use of the cartridge is provided herein.

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