Application of the thallium electrode for the measurement of partial pressure of oxygen in medicine and physiology (pH effect)

Abstract

This technique involves the reaction of O₂ with thallium in the presence of water. It seems to offer advantages over conventional methods, since the measurement is made under potentiometric conditions and is independent of sample pH changes at levels of high P(0₂). In additiOn, it would seem to be independent of effects from ions which form salts with thallium and the presence of alcohols, aldehydes, ketones and haloforms does not interfere with electrode mechanism.