METHOD FOR SPECTROPHOTOMETRIC DETERMINATION OF CYANIDE ANION IN WATER BASED ON REACTION THEREOF WITH CHROMOGENIC AZOAROMATIC DISULPHIDE THROUGH MICELLAR CATALYSIS

摘要

FIELD: chemistry.;SUBSTANCE: method involves treatment of the solution of a sample with aqueous solutions of 4, 4'-bis(2-oxy-6,8-disulpho-1-naphthylazo)diphenylsulphide, potassium hydroxide and cetyltrimethylammonium chloride in volume ratio of 2:1:1:1 respectively, with subsequent measurement of optical density and determination of content of the cyanide anion using a calibration curve.;EFFECT: simpler and faster analysis.;3 dwg