A Urea Electrode Based on the Ammonia Probe
- 1 November 1973
- journal article
- research article
- Published by Taylor & Francis in Analytical Letters
- Vol. 6 (11), 969-975
- https://doi.org/10.1080/00032717308058175
Abstract
An enzyme electrode specific for the substrate urea is described. The electrode consists of a layer of urease polymerized directly on to the surface of the gas diffusion membrane of an ammonia probe by means of glutaraldehyde. The calibration curves obtained when the electrode is allowed to measure in buffered solutions are discussed in terms of enzyme activity and pH-gradients in the membrane.Keywords
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