Optimization of the spectrophotometric determination of Aqueous Cyanide: Application on Samira (Niger) Gold Mine Groundwater Analysis

Cyanide is very toxic to humans, and its usage in gold mining potentially poses serious environmental threats. In this paper, by revising the well-known colorimetric method based on the chlorination of cyanide with chloramine-T and subsequent reactions with pyridine-barbituric acid reagent, we have developed a robust and sensitive UV-Visible spectrophotometric method for cyanide determination in aqueous media.