Journal of Applied Physiology, Vol 45, Issue 1 145-154, Copyright © 1978 by American Physiological Society

ARTICLES

Oxygen electrode design criteria and performance characteristics: recessed cathode

G. Schneiderman and T. K. Goldstick

A computer simulation of the steady-state operation of recessed (Whalen-type) polarographic oxygen electrodes has been developed to give the design factors important for performance optimization. The simulation makes use of a specially formulated three-dimensional orthogonal coordinate system with the geometry identical to the actual recessed cathode and gives the oxygen concentration field induced by it in the surrounding medium. Equations are presented which allow one to calculate, for any recessed cathode, the current sensitivity, maximum stirring artifact, measurement error, and time constant. Comparisons with analytically obtained expressions for the corresponding quantities for idealized, spherosymmetric cathodes demonstrate the unique aspects of recessed-cathode performance. For commonly used electrodes, a recess length-to-cathode diameter ratio of greater than 10 is found to give a negligible stirring artifact, a negligible measurement error, and a rapid response.

This article has been cited by other articles:

				C. S. Nunemaker, D. G. Buerk, M. Zhang, and L. S. Satin Glucose-induced release of nitric oxide from mouse pancreatic islets as detected with nitric oxide-selective glass microelectrodes Am J Physiol Endocrinol Metab, March 1, 2007; 292(3): E907 - E912. [Abstract] [Full Text] [PDF]

				W. Waser and N. Heisler Oxygen delivery to the fish eye: Root effect as crucial factor for elevated retinal PO2 J. Exp. Biol., November 1, 2005; 208(21): 4035 - 4047. [Abstract] [Full Text] [PDF]

				L. I. Cardenas-Navia, D. Yu, R. D. Braun, D. M. Brizel, T. W. Secomb, and M. W. Dewhirst Tumor-dependent Kinetics of Partial Pressure of Oxygen Fluctuations during Air and Oxygen Breathing Cancer Res., September 1, 2004; 64(17): 6010 - 6017. [Abstract] [Full Text] [PDF]

				A. G. TSAI, P. C. JOHNSON, and M. INTAGLIETTA Oxygen Gradients in the Microcirculation Physiol Rev, July 1, 2003; 83(3): 933 - 963. [Abstract] [Full Text] [PDF]

				N. D. Wangsa-Wirawan and R. A. Linsenmeier Retinal Oxygen: Fundamental and Clinical Aspects Arch Ophthalmol, April 1, 2003; 121(4): 547 - 557. [Abstract] [Full Text] [PDF]

				R. D. Braun, J. L. Lanzen, S. A. Snyder, and M. W. Dewhirst Comparison of tumor and normal tissue oxygen tension measurements using OxyLite or microelectrodes in rodents Am J Physiol Heart Circ Physiol, June 1, 2001; 280(6): H2533 - H2544. [Abstract] [Full Text] [PDF]

				R. D. Braun, J. L. Lanzen, and M. W. Dewhirst Fourier analysis of fluctuations of oxygen tension and blood flow in R3230Ac tumors and muscle in rats Am J Physiol Heart Circ Physiol, August 1, 1999; 277(2): H551 - H568. [Abstract] [Full Text] [PDF]

				L. B. Padnick, R. A. Linsenmeier, and T. K. Goldstick Perfluorocarbon emulsion improves oxygenation of the cat primary visual cortex J Appl Physiol, May 1, 1999; 86(5): 1497 - 1504. [Abstract] [Full Text] [PDF]

				S. Land, D. Porterfield, R. Sanger, and P. Smith The self-referencing oxygen-selective microelectrode: detection of transmembrane oxygen flux from single cells J. Exp. Biol., January 1, 1999; 202(2): 211 - 218. [Abstract] [PDF]