Patent ID: 8608925
Filing Date: 2013-12-17
Classification: G01N

Abstract:
1. A multiple-electrode ionic probe, comprising: at least four chambers, with the at least four chambers being substantially sealed, with a first pair of chambers both including a first electrolyte solution and with a second pair of chambers both including a second electrolyte solution that is different from the first electrolyte solution; at least four corresponding ion sensitive regions formed in the at least four chambers, with the at least four ion sensitive regions enabling ion interaction between the at least four chambers and an exterior of the multiple-electrode ionic probe, with a first pair two of the chambers including an ion sensitive region having a first ionic sensitivity characteristic and with a second pair two of the chambers including an ion sensitive region having a second ionic sensitivity characteristic that differs from the first ionic sensitivity characteristic; and wherein both of a first chamber of the two chambers including an ion sensitive region having the first ionic sensitivity characteristic and a first chamber of the two chambers including an ion sensitive region having the second ionic sensitivity characteristic have the first electrolyte solution therein; wherein both of a second chamber of the two chambers including an ion sensitive region having the first ionic sensitivity characteristic and a second chamber of the two chambers including an ion sensitive region having the second ionic sensitivity characteristic have the second electrolyte solution therein; and at least four corresponding electrodes positioned in the at least four chambers; wherein the at least four chambers are measurement electrode chambers.