Chemiluminescence Determination of Cyanide Ions |
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| Authors: | A V Gavrilov A A Druzhinin K I Zakharov V A Ishutin S A Nemkov I A Pushkin |
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| Institution: | (1) Ministry of Emergency Situations, Academy of Civil Protection, Novogorsk, Khimki raion, Moscow oblast, 141415, Russia;(2) Ministry of Defense, Military Academy of Radiation, Chemical, and Biological Protection, Brigadirskii per. 13, Moscow, 105005, Russia |
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| Abstract: | It was found that alkaline solutions of luminol exhibit chemiluminescence in the presence of p-nitrobenzaldehyde (p-NBA), hemin, and cyanide ions. Air oxygen dissolved in the solutions is an essential component of the process. The kinetics of luminol chemiluminescence in the presence of p-NBA, hemin, and cyanide ions indicates the catalytic nature of the process. A scheme was proposed for the series of reactions resulting in chemiluminescence and generated by superoxide radicals formed in the p-NBA-catalyzed reaction between hemin-activated air oxygen and hydrated p-NBA species. A procedure was developed with a determination limit of (1.0 ± 0.3) × 10?7 mg/mL (n = 5, P = 0.95) for cyanide ions. |
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