Silver/silver iodide electrodes of the second kind as sensors for cyanide

Silver/silver iodide electrodes of the second kind prepared by electrolytic coating of silver electrodes are advantageous as sensors for cyanide. They are inexpensive and exhibit characteristics similar to those of commercially available ion-selective electrodes. They can be regenerated easily when necessary; this eliminates the lifetime problems generally inherent in iodide electrodes used as cyanide sensors. The preparation, properties and selectivity characteristics of the second-kind iodide electrode are described.