What methods are currently used to determine the cyanide concentration in gold mine cyanidation leachates?
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What methods are currently used to determine the cyanide concentration in gold mine cyanidation leachates, and are they simple to operate? Thank you!
Due to the chelating property of cyanide, direct measurement of water samples will certainly suffer from significant interference and effects. 1. Using acidified distillation followed by alkali solution absorption, followed by appropriate measurements, will yield good results ； 2. During the measurement process, a stronger complexing agent or chelating agent is added to release the cyanide ions before proceeding with the measurement ； 3. A special measurement method is employed, using the standard addition technique to eliminate the influence of the sample matrix. If you need a detailed technical discussion, feel free to contact me.