Techniques for measuring the partial pressures of gases in the blood. II. In vivo measurements

For pt.I see ibid., vol.13, p.470 (1980). This review, the second of a two-part examination of the principles of blood-gas sensors, describes the design and principles of electrochemical transducers for the in vivo measurement of the partial pressures of gases in the blood. Theoretical models for both electrochemical and mass spectrometric invasive transducers are considered, and transcutaneous non-invasive transducers are described.