Ion-selective reference probe

Details Ion-selective reference probe Ion-selective reference probe

1994-03-25

1995-05-30

Gorgos, Kathryn

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204433, 204435, 204414, 204420, 204413, 422 8203, G01N 2726

Patent

active

054198267

ABSTRACT:
An ion-selective reference probe which is adapted for use with potentiomec measurement systems is disclosed. The reference probe is non-chloride based and employs a specially adapted electrolyte which is reversible (i.e. with regard to ionic activity). More particularly, the electrolyte includes appropriate concentrations of ethylenediamine and copper(II) ions in a solvent to permit reversibility of the electrolyte within a desired range. Junction potential between the electrolyte and a test solution is minimized by forming the electrolyte from a portion of the test solution.

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