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Metals-cyanide complexes exist as a natural function of geology and chemistry. Often times, most individuals are concerned with total cyanide or weak acid dissociable cyanide to identify risk assessment. Unfortunately, the basic analytical methods to supply these measurements do not provide ample information to make educated decisions. Metal-cyanide complexes are an inherent function of mining operations, especially for gold extraction. The released cyanide will react with naturally occurring compounds containing metals. The availability of these metals and other parameters can dictate the mobility, risk assessment, and identification if remediation efforts are necessary.

Cyanide itself can not be determined using ICP-MS but when it is complexed with a metal, ICP-MS becomes an excellent detector considering its sensitivity for metals. Determination of cyanide complexes of Ag, Au, Cu, Co, Ni, Fe, and Se at sub-ppb levels is possible when these species are chromatographically separated and detected by ICP-DRC-MS. It should be noted that identification of AgCN and CuCN complexes are typically qualitative due to the weak dissociable bonds.

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