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APCO2 surface electrode working on the principle of electrical conductivity

  • Heart, Circulation, Respiration and Blood; Environmental and Exercise Physiology
  • Instruments and Techniques
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Abstract

APCO2 electrode working on the principle of electrical conductivity is described. The calibration curve can be linearized according to the formula\(G = G_0 + b\sqrt {P{\text{CO}}_2 } \). This linearity has been tested in thePCO2 range of 0.93–9.33 kPa (7–70 Torr). For the experiments electrodes are used which have conductivity values of about 50 nS and drifts of maximally 5%/h at aPCO2 of 5.33 kPa (40 Torr). The response time (T 90) is about 20 s. The temperature sensitivity is 2.4 nS/1 K between 298K–310K. The standard error of the measurements is σ=0.33 nS. With these electrodes tissuePCO2 can be measured on the surface of various organs.

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Authors and Affiliations

  1. Max-Planck-Institut für Systemphysiologie, Rheinlanddamm 201, D-4600, Dortmund, Federal Republic of Germany

    Karl Lis, Helmut Acker, Dietrich Werner Lübbers & Martin Halle

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  1. Karl Lis
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  2. Helmut Acker
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  3. Dietrich Werner Lübbers
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  4. Martin Halle
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Lis, K., Acker, H., Lübbers, D.W. et al. APCO2 surface electrode working on the principle of electrical conductivity. Pflugers Arch. 381, 289–291 (1979). https://doi.org/10.1007/BF00583262

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  • DOI: https://doi.org/10.1007/BF00583262

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