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An Improved PO2 Electrode for Measurement of Absolute Oxygen Tension. Toyozo Aizawa 1 , Gotoh Fumio 1 , Fumio Muramatsu 2 , Masaharu Nara 2 , Minoru Tomita 2 , Ryoji Kakimi 2 1Dept. of Internal Medicine, School of Medicine, Keio Univ. 2Dept. of Internal Medicine, School of Medicine, Keio Univ. pp.825-832
Published Date 1962/12/15
DOI https://doi.org/10.11477/mf.1404201161
  • Abstract
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The PO2 electrode which we have constructed is composed of a fine platinum cathode sealed into a glass tubing, a silver-silver chloride anode and a glass sheath. The measuring surface is covered with polyethylene membrane within which a droplet of saline solution is trapped. The most appropriate combination of fineness of the platinum cathode with thickness of the polyethylene membrane has been found to be essential for the measurement of absol-ute oxygen tension.

The platinum cathode is fine enough to reduce oxygen consumption of the electrode. As no stirring effect is observed during measurement of PO2 in solution oxygen concentration gradient is assumed to be confined to the reacting space.

We have described that the electrode is easily and rapidly calibrated by gas at known oxygen tension, and is stable, reproducible, furthermore applicable to both blood and tis-sue for continuous recording of absolute oxygen tension.


Copyright © 1962, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1200 印刷版ISSN 0452-3458 医学書院

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