Belousov-Zhabotinskii Type Oscillation Reaction with Amino Acid as Organic Substrate

Different Kinds of Chaotic Oscillations in the Belousov-Zhabotinskii Reaction

für Naturforschung in cooperation with the Max Planck Society for the Advancement of Science under a Creative Commons Attribution 4.0 International License. Dieses Werk wurde im Jahr 2013 vom Verlag Zeitschrift für Naturforschung in Zusammenarbeit mit der Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. digitalisiert und unter folgender Lizenz veröffentlicht: Creative Commons Namen...

Pattern Formation and Wave Propagation in the Belousov-Zhabotinskii Reaction

Identification of the Belousov-zhabotinskii Reaction Using Cellular Automata Models

New methods of identifying the transition rule of a Belousov–Zhabotinskii (BZ) reaction directly from experimental data using cellular automata (CA) models are investigated. The experimental set-up and new techniques for image pre-processing to ensure the identification of representative models are discussed including noise reduction, pixel and color calibration. Two kinds of models, the Greenb...

Chiral Intermediates and the Oscillatory Effect of Circular Dichroism in the Belousov - Zhabotinskii Type Reaction of L-Ascorbic Acid

Investigating the Belousov-Zhabotinskii (BZ) type reaction of an acidic L-ascorbic acid (AA) / potassium bromate / cerous sulfate system, an oscillatory effect of circular dichroism is detectable at A = 300 nm. HPLC analysis of the oscillatory mixture and spectroscopic experi­ ments indicate that this effect is caused by 3,4,5-trihydroxy-2-oxo-L-valeraldehyde (TVA) a C5 oxidation fragment of AA...

Degradation of Lactic Acid and Pyruvic Acid in Belousov-Zhabotinskii Reactions

The temporal degradation of the Belousov-Zhabotinskii substrates lactic acid, pyruvic acid, bromoand dibromo pyruvic acid is investigated. The only final product of non-brominated substrates is acetic acid. From brominated educts only brominated acetic acids result. The con­ centrations of the stable products are determined as a function of time. The gross reactions are mainly based on simple c...