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CRUNDWELL, F.K., An amperometric method for the determination of cyanide in gold process streams and slurries, Hydrometallurgy, 27 (1991) 19-28.

A method for the determination of the concentration of cyanide based on the measurement of the diffusion current due to the oxidation of Cu to Cu(CN)2 is described. The response is rapid and linear, and is accurate in the range of concentrations found in process streams. The response is stable and is not subject to interference from other ions present in mine solutions. This method of determination may be easily adapted to the continuous monitoring of cyanide in process streams and effluents.