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Abstract
A fluorometric method for the analysis of cyanogen (C2N2, ethanedinitrile) without cyanide interference is described the procedure is based on the reaction of C2N2 with hexamethylenetetramine (HMTA) to produce a fluorophor. the fluorescence yield is linear over a range of 3–4 orders of magnitude. the method is comparable in detection limits to CN− measurements done electrochemically; in this case >10−2−<10−5 M. Many anions and cations were examined for interference; only transition and heavy metal compounds reduced fluorescence. Certain amines may interfere, although all examined reacted much slower than the HMTA.