Patent ID: 6328867
Filing Date: 2001-12-11
Classification: G01N

Abstract:
An electrochemical cell probe for measuring concentrations of elements in a liquid comprising:a base having a first end and a second end;a reference electrode positioned between the first end of the base and the second end of the base; anda glassy electrolyte positioned adjacent the reference electrode, wherein when the base is inserted into the liquid, the base and the glassy electrode are in direct contact with the liquid, wherein the glassy electrolyte is selected from the group consisting essentially of a compound of 38% CaO, 42% SiO.sub.2, and 20% Al.sub.2 O.sub.3, soda glass, Pyrex powder, a compound of 30% Na.sub.2 O, 60% SiO.sub.2, and 10% P.sub.2 O.sub.5 and a pre-fused mixture of cryolite (Na.sub.3 AlF.sub.6) admixed with approximately 5% to 10% CaF.sub.2 (fluorspar) and approximately 4% to 7% Al.sub.2 O.sub.3.