MINIMUM FUNCTIONAL ELECTRODS FOR THE METHOD OF JONES AND GASES

摘要

A miniature probe for simultaneously sensing ion concentrations and partial pressures of gases in a sample comprises plural sensing electrode systems at least one of which is surrounded by an electrolyte and a gas permeable or ion permeable diffusion barrier. The systems are united structurally to form a probe. Various potentials are measured between components of the electrode systems which potentials are indicative of ion and gas concentrations in the sample in which the probe is inserted. Potentials between certain of the internal probe electrodes and external electrodes are indicative of other ions or gases. Partial pressures of oxygen and carbon dioxide gases and concentrations of hydrogen, bicarbonate ions and other cations and anions are typical constituents of a sample that can be determined with the probe.