Simple Electrochemical Sensor for Measuring Oxygen Tension in Blood or Respiratory Gases

Measurements of the oxygen content in fluids and gases (oximetry) have found many applications in various fields, and are particularly desirable in medicine and environmental protection. The standard method for measuring of oxygen tension, also known as oxygen pressure (pO2) in fluids and gases, including blood and respiratory gases, is the Clark's electrochemical method. The authors have developed and tested a simple electrochemical sensor based on the Clark method for measuring oxygen pressure in blood and respiratory gases. A sensor, developed by us for the assessment of pO2 by the amperometric method, meets the basic metrological requirements for use in direct oxygen tension measurements of blood and respiratory gases.