M. Sarwar et al., A NEW SPECTROPHOTOMETRIC METHOD FOR THE DETERMINATION OF CYANIDE FROMWASTE-WATER, Journal of the Chemical Society of Pakistan, 18(1), 1996, pp. 28-31
Cyanide reacts with N-Bromosuccinimide followed by the reaction with p
yridine-barbituric acid to produce a pink colour having maximum absorb
ance at 580 nm Ihs method in reasonably sensitive, accurate, precise a
nd less time consuming. This method was successfully applied for the d
etermination of cyanide from waste water.