New oscillatory process in aqueous solutions of compounds containing carbonyl and amino groups

Frequency-correlated oscillations of chemiluminescence and the redox potent ial are observed during the amino-carbonyl reaction, which occurs in aqueou s solutions of methylglyoxal and various amino-containing compounds (ethano lamine, glycine, and beta -alanine) at room temperature. The duration and a mplitude of oscillations depend on the composition and concentration of the starting reactants, pH, stirring, and surface area through which oxygen di ffuses into the system.