Spectrophotometric determination of cyanide by chromogenic disulfide in water using micellar catalysis

A spectrophotometric method is developed for the determination of cyanide in aqueous solutions using chromogenic disulfide 4,4′-2 bis (1-hydroxy-3,6-disulfo-8-chloro-2-naphthylazo)diphenyldisulfide ( BAS-chlorine ) in the presence of cetyltrimethylammonium chloride ( CTMAC ). The use of CTMAC allows...

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Bibliographic Details
Published in:Journal of analytical chemistry (New York, N.Y.) N.Y.), 2010-07, Vol.65 (7), p.704-706
Main Authors: Druzhinin, A. A., Lozanov, I. A., Prosvetova, M. Yu, Veksler, K. V.
Format: Article
Language:English
Subjects:
Analytical Chemistry
Catalysis
Chemistry
Chemistry and Materials Science
Cyanides
Water
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Summary:A spectrophotometric method is developed for the determination of cyanide in aqueous solutions using chromogenic disulfide 4,4′-2 bis (1-hydroxy-3,6-disulfo-8-chloro-2-naphthylazo)diphenyldisulfide ( BAS-chlorine ) in the presence of cetyltrimethylammonium chloride ( CTMAC ). The use of CTMAC allows diminishing the limit of detection for the spectrophotometric determination of cyanide to (7.2 ± 0.3) ng/mL ( p = 0.95, n = 5, RSD = 29%).
ISSN:1061-9348
1608-3199
DOI:10.1134/S1061934810070087