A system for recording urinary output changes in vivo
Abstract
Although the use of membranes does increase the res7onse time, previous work with this electrodelo indicates that it is acceptable for most uses; half time (time to *espond to half the change) of 100s for a p02 change ârom 0 to 2 x lo4 Nm-2 using the polypropylene memJrane. Faster response times require more permeable nembranes which again generate problems due to the iiffusion layer. These facts together with superior electrical and mechaiical stability to that of a platinum electrode13 make this ievice eminently suitable for tissue p0z measurement. REFERENCES 6. 7. 8. 9. 10. 1. Daneel, H. (1897) Z. Elektrochem, 4, 227. 2. Cater, D. B., Silver, I. A. and Wilson, G. M. (1959) Apparatus and technique for the quantitative measurement o oxygen tension in living tissues. Proceedings of the f Royal Society, BISI, 256-276, 3. Carey, F. G. and Teal, J. M.(1965) Responses of oxygen electrodes to variables in construction and use. Journal of Applied Physiology, 20, 1074-1077. 4. Clark, L. C. Jr. (1956) Monitor and control of blood and tissue oxygen tensions. Transactions of the American Society f o r Artificial Internal Organs, 2, 41-44. 5. Linek, V. and Vacek, V. (1976) Oxygen electrode response