Accession Number : ADD017587

Title :   Ion-Selective Reference Probe.

Descriptive Note : Patent, Filed 25 Mar 94, patented 30 May 95

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Zirino, Albert R

Report Date : 30 May 1995

Pagination or Media Count : 6

Abstract : An ion-selective reference probe which is adapted for use with potentiometric 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.

Descriptors :   *ELECTROLYTES, *PATENTS, *POTENTIOMETRIC ANALYSIS, *ETHYLENEDIAMINE, TEST AND EVALUATION, MEASUREMENT, PROBES, SOLUTIONS(MIXTURES), COPPER, JUNCTIONS, CONCENTRATION(CHEMISTRY), ION SELECTIVE ELECTRODES

Subject Categories : Atomic and Molecular Physics and Spectroscopy
      Physical Chemistry
      Electrical and Electronic Equipment
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE