Showing papers by "Russian Ministry of the Emergency Situations published in 2005"
TL;DR: In this paper, it was found that luminol exhibits chemiluminescence in the presence of p-nitrobenzaldehyde (p-NBA), hemin, and cyanide ions.
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.
11 citations
TL;DR: It is demonstrated that Polesskii's concepts in principle enable one to reach the maximum disentanglement of clutters, thus substantially approaching the reliability boundaries of the random binary systems.
Abstract: Consideration was given to the so-called "Polesskii estimates" which define new, more accurate reliability boundaries of the random binary systems as compared with the classical Esary-Proshan estimates. As was later shown, these estimates can be further refined. By giving a simplified, that is, purely applied, interpretation of the formal Polesskii rules, the present author demonstrated that Polesskii's concepts in principle enable one to reach the maximum disentanglement of clutters, thus substantially approaching the reliability boundaries of the random binary systems. The results of comparing the Polesskii estimates with other possible lines to attack the approachment of the boundaries of combinatorial reliability of the random binary systems were presented.